Best Hardware for GPU Rendering in Octane – Redshift – Vray (Updated)

CG Director Author Alex  by Alex  ⋮   ⋮   178 comments
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Graphics Card (GPU) based render engines such as Redhift3D, Octane or VRAY-RT have matured quite a bit over the last years and are starting to overtake CPU-based Render-Engines.

But what hardware gives the best-bang-for-the-buck and what do you have to keep in mind when building your GPU-Workstation compared to a CPU Rendering Workstation? Building a 3D Modeling and CPU Rendering Workstation can be somewhat straightforward, but highly optimizing for GPU Rendering is a whole other story.

So what are the best Hardware-Components and best GPU for rendering with Octane, Redhsift3D or VRAY-RT, that also is affordable? Let’s take a look:

Best Hardware for GPU Rendering


Since GPU-Render Engines use the GPU to render, technically you should go for a max-core-clock CPU like the Intel i9 9900K that clocks at 3,6GHz (5Ghz Turbo) or the Intel i7 8700K that clocks at 3,7Ghz (4,7Ghz Turbo).

That said though, there is another factor to consider when choosing a CPU: PCIe-Lanes.

GPUs are attached to the CPU via PCIe-Lanes on the motherboard. Different CPUs support different amounts of PCIe-Lanes and Top-tier GPUs usually need 16x PCIe 3.0 Lanes to run at full performance.

The i9 9900K/8700K have 16 PCIe-Lanes, meaning you could use only one GPU at full speed with these type of CPUs.

If you want more than one GPU at full speed you would need a different CPU that supports more PCIe-Lanes like the AMD Threadripper CPUs, that have 64 PCIe-Lanes (e.g. the AMD Threadripper 2950X), the i9 7800X (28 PCIe-Lanes) or the i9 7900X Series CPUs that support 44 PCIe-Lanes.

GPUs, though, can also run in lower speed modes such as 8x PCIe 3.0 Speeds and then also use up fewer PCIe-Lanes (8x). Usually, there is a negligible difference in Rendering Speed when having GPUs run in 8x mode instead of 16x mode.

This would mean you could run 2x GPUs on an i9 9900K in 8x PCIe mode, 3x GPUs on an i9 7800X and 5x GPUs on an i9 7900X. (Given the Mainboard supports this configuration)

CPUs that have a high number of PCIe-Lanes usually fall into the HEDT Platform range and are usually also great for CPU Rendering as they tend to have more cores and therefore better multi-core performance.

PCIE_Lanes Compariosn

When actively rendering and your scene fits nicely into the GPUs VRAM, the speed of GPU Render Engines is of course mainly dependent on GPU performance.

Some processes though that happen before and during rendering rely heavily on the performance of the CPU, Hard-Drive, and network.

For example extracting and preparing Mesh Data to be used by the GPU, loading textures from your Hard-Drive and preparing the scene data.

In very complex scenes, these processing stages will take lots of time and can bottleneck the overall rendering speed, if a low-end CPU, Disk, and RAM are employed.

If your scene is too large for your GPU memory, the GPU Render Engine will need to access your System RAM or even swap to disk, which will considerably slow down the rendering.

Best Memory (RAM) for GPU Rendering

Different kinds of RAM won’t speed up your GPU Rendering all that much. You do have to make sure, that you have enough RAM though, or else your System will crawl to a halt.

I recommend keeping the following rules in mind to optimize performance as much as possible:

Best Graphics Card for Rendering

To use Octane and Redshift you will need a GPU that has CUDA-Cores, meaning you will need an NVIDIA GPU. VRAY-RT additionally supports OpenCL meaning you could use an AMD card here.

The best bang-for-the-buck NVIDIA cards are the NVIDIA 2070 RTX (2304 CUDA Cores, 8GB VRAM), 2080 RTX (2944 CUDA Cores, 8GB VRAM) and the 2080 Ti (4352 CUDA Cores, 11GB VRAM).

On the high-end, the currently highest possible performance is offered by the NVIDIA Titan V and Titan RTX, that also comes with 24GB of Video RAM.

These Cards though have worse Performance per Dollar as they are targeted at a different audience and VRAM is very expensive but not necessarily needed in such high capacities for GPU Rendering.

GPUs, that have 12GB of Video RAM and more, can handle high-poly scenes with over 200 million unique objects best. Take a look at the performance per dollar tables below, though, to get an overview of how expensive some of these cards can get without offering that much more performance.

GPU Cooling

Founders Edition Blower Style Cooler

  • PRO: Better Cooling when stacking more than one card
  • CON: Louder than Open-Air Cooling

Open-Air Cooling

  • PRO: Quieter than Blower Style, Cheaper
  • CON: Worse Cooling when stacking cards

Hybrid AiO Cooling (All-in-One Watercooling Loop with Fans)

  • PRO: Best All-In-One Cooling for stacking cards
  • CON: More Expensive, needs room for radiators in Case


  • PRO: Best temps when stacking cards, Quiet, can use only single slot height
  • CON: Needs lots of extra room in the case for tank and radiators, More Expensive

NVIDIA GPUs have a Boosting Technology, that automatically overclocks your GPU to a certain degree, as long as it stays within predefined temperature and power limits. So making sure a GPU stays as cool as possible, will improve the performance.

You can see this effect especially in Laptops, where there is usually not much room for cooling, and the GPUs tend to get very hot and loud and throttle very early. So if you are thinking of Rendering on a Laptop, keep this in mind.

Power Supply

Be sure to get a strong enough Power supply for your system. Most Cards have a Power Draw of around 180-250W. CPU of around 100W and any additional Hardware in your case.

I Recommend a 500W for a Single-GPU-Build. Add 250W for every additional GPU. Good PSU manufacturers to look out for are Corsair, beQuiet, Seasonic, and Coolermaster but you might prefer others.

There is a Wattage-Calculator here that lets you Calculate how strong your PSU will have to be.

Mainboard & PCIe-Lanes

Make sure the Mainboard has the desired amount of PCIe-Lanes and does not share Lanes with SATA or M.2 slots. Also, be careful what PCI-E Configurations the Motherboard supports. Some have 3 or 4 PCI-E Slots but only support one x16 PCI-E Card.

This can get quite confusing. Check the Motherboard manufacturers Website to be sure the Card configuration you are aiming for is supported. Here is what you should be looking for in the Motherboard specifications:

Asus Rampage PCIE Lane Config

Image-Source: Asus

In the above example, you would be able to use (with a 40 PCIe Lane CPU) 1 GPU in x16 mode. OR 2 GPUs in both x16 mode OR 3 GPUs one in x16 mode and two of those in x8 mode and so on. Beware that 28-PCIe Lane-CPUs in this example would support different GPU configurations than the 40 lane CPU.

Currently, the AMD Threadripper CPUs will give you 64 PCIe Lanes to hook your GPUs up to, if you want more you will have to go the multi-CPU route with Intel Xeons.

To confuse things a bit more, some Mainboards do offer four x16 GPUs (needs 64 PCIe-Lanes) on CPUs with only 44 PCIe Lanes. How is this even possible?

Enter PLX Chips. On some motherboards these chips serve as a type of switch, managing your PCIe-Lanes and leads the CPU to believe fewer Lanes are being used. This way, you can use e.g. 32 PCIe-Lanes with a 16 PCIe-Lane CPU or 64 PCIe-Lanes on a 44-Lane CPU. Beware though, only a few Motherboards have these PLX Chips. The Asus WS X299 Sage is one of them, allowing up to 7 GPUs to be used at 8x speed with a 44-Lane CPU, or even 4 x16 GPUs on a 44 Lanes CPU.

This screenshot of the Asus WS X299 Sage Manual clearly states what type of GPU-Configurations are supported (Always check the manual before buying expensive stuff):

Asus WS X299 Sage

Image-Source: Asus Mainboard Manual

PCIe-Lane Conclusion: For Multi-GPU Setups, having a CPU with lots of PCIe-Lanes is important, unless you have a Mainboard that comes with PLX chips. Having GPUs run in x8 Mode instead of x16, will only marginally slow down the performance. (Note though, the PLX Chips won’t increase your GPU bandwidth to the CPU, just make it possible to have more cards run in higher modes)

Best GPU Performance / Dollar

Ok so here it is. The Lists everyone should be looking at when choosing the right GPU to buy. The best performing GPU per Dollar!

GPU Benchmark Comparison: Octane

This List is based on OctaneBench 4.00.

(It’s quite difficult to get an average Price for some of these cards since crypto-currency mining is so popular right now, so I used MSRP)

GPU NameVRAMOctaneBenchPrice $ MSRPPerformance/Dollar
RTX 207082105500.381
GTX 107081334000.333
GTX 1070 Ti81534500.340
GTX 10608943000.313
GTX 1080 Ti112227000.317
GTX 108081485500.269
RTX 208082267990.282
RTX 2080 Ti1130411990.253
TITAN XP1225013000.192
RTX Titan2432627000.120
Titan V1239630000.132
GTX TITAN Z1218929990.063
Quadro P60002413938490.036
Quadro GP1001628470000.040
RTX 206061703500.485

Source: Complete OctaneBench Benchmark List

GPU Benchmark Comparison: Redshift

The Redshift Render Engine has its own Benchmark and here is a List based off of Redshift Bench. Note how the cards scale (1080TI) [RedshiftBench Mark (Time [min], shorter is better)]:

GPU NameVRAMRedshiftBenchPrice $ MSRPPerformance/Dollar
RTX 2070811.355501.601
GTX 1070817.114001.461
GTX 1080 Ti1111.447001.248
RTX 2080810.597991.181
4x GTX 1080 Ti113.0728001.163
2x GTX 1080 Ti116.1514001.161
8x GTX 1080 Ti111.5756001.137
GTX 1080816.005501.136
RTX 2080 Ti118.3811990.995
TITAN XP1210.5413000.729
Titan V128.5030000.392
Quadro P60002411.3138490.229
Quadro GP100169.5770000.149
4x RTX 2080 Ti112.2847960.914

Source: Complete Redshift Benchmark Results List

GPU Benchmark Comparison: VRAY-RT

And here is a List based off of VRAY-RT Bench. Note how the GTX 1080 interestingly seems to perform worse than the GTX 1070 in this benchmark:

GPU NameVRAMVRAY-BenchPrice $ MSRPPerformance/Dollar
GTX 107081:25 min4002.941
RTX 207081:05 min5502.797
GTX 1080 TI111:00 min7002.380
2x GTX 1080 TI110:32 min14002.232
GTX 108081:27 min5502.089
4x GTX 1080 TI110:19 min28001.879
TITAN XP120:53 min13001.451
8x GTX 1080 TI110:16 min56001.116
TITAN V120:41 min30000.813
Quadro P6000241:04 min38490.405

Source: VRAY Benchmark List

Speed up your Multi-GPU Rendertimes

So, unfortunately, GPUs don’t scale linearly. 2 GPUs render an Image about 1,8 times faster. Having 4 GPUs will only render about 3,5x faster. This is quite a bummer, isn’t it? Having multiple GPUs communicate with each other to render the same task, costs so much performance, that one GPU in a 4-GPU rig is mainly just managing decisions.

One solution could be the following: When final rendering image sequences, use as few GPUs as possible per task.

Let’s make an example:

What we usually do in a multi-GPU rig is, have all GPUs work on the same task. A single task, in this case, would be an image in our image sequence.

4 GPUs together render one Image and then move on to the next Image in the Image sequence until the entire sequence has been rendered.

We can speed up preparation time per GPU (when the GPUs sit idly waiting for a task to start) and bypass some of the multi-GPU slow-downs when we have each GPU render on its own task.

Now 4 GPUs are simultaneously rendering 4 Images, but each GPU is rendering its own Image.

Some 3D-Software might have this feature built-in, if not, it is best to use some kind of Render Manager, such as Thinkbox Deadline (Free for up to 2 Nodes/Computers).

Beware though, that you might have to increase your System RAM a bit and have a strong CPU since every GPU-Task needs its amount of RAM and CPU performance.

Buying GPUs

NVIDIA and AMD GPUs are both hard to get by for a reasonable price nowadays since mining is so popular. Graphics Cards are mostly Out of Stock and even when they are available, they are nowhere near MSRP. There is a site called nowinstock that gives you an overview of the most popular places to buy GPUs in your country and notifies you as soon as cards are available.

I put together some Builds in different Price ranges here for you to get a head start in configuring your own dream-build.

Redshift vs. Octane

Another thing I am asked often is if one should go with the Redshift Render Engine or Octane.

As I myself have used both extensively, in my experience, thanks to the Shader Graph Editor and the vast Multi-Pass Manager of Redshift, I like to use the Redshift Render Engine more for doing work that needs complex Material Setups and heavy Compositing.

Octane is great if you want results fast, as it is slightly easier to learn for beginners. But this, of course, is a personal opinion and I would love to hear yours!

Custom PC-Builder

If you want to get the best parts within your budget you should have a look at the Web-Base PC-Builder Tool that I’ve created.

Select the main purpose that you’ll use the computer for and adjust your budget to create the perfect PC with part recommendations that will fit within your budget.

CGDirector PC-Builder Tool

PC-Builder Facebook Title Image

What Hardware do you want to buy?

Alex from CGDirector - post author

Hi, I'm Alex, a Freelance 3D Generalist, Motion Designer and Compositor.

I've built a multitude of Computers, Workstations and Renderfarms and love to optimize them as much as possible.

Feel free to comment and ask for suggestions on your PC-Build or 3D-related Problem, I'll do my best to help out!




Another question!

I have one of these with 2 x 1080ti, can this be used on the GPU max part picker, so 3 x 2080ti and the 4th slot would have the amfeltec card – so total of 5 GPUs.
Hope that makes sense!



Hi Guys, what case could be used for 4 x Gigabyte AORUS GeForce RTX 2080 Ti XTREME WATERFORCE 11G
The hybrid fans are double in size from last years 1080ti!



Hello Sir, After looking at your PC build post I build my PC in December 2018….
CPU AMD Ryzen 5 2600
RAM Corsair Vengeance 3000mhz 8GB
GPU Zotac GTX 1060 6gb Amp edition
POWER Corsair 650w SMPS
MOTHERBOARD Gigabyte Aorus B450 Elite
CASE Aorus Mid Tower

My question is…I have been using only Arnold and Redshift Renderes
But now I want to use Octane 3/4
How will it affect performance of my PC
should i increase RAM only say i have only 8gb….if i add 16gb 3000mhz
How processing time of Rendering will affect
Aorus b450 has 4 slots for ram expendable upto 64gb
I already have 8gb installed and If i add 16gb on another slot will it be fine, or another 8gb will do the work for me?
I have watched a video of “Andrey lebrov” on youtube…and he tells that Ocatne has some limitation that it cannot go beyond a certain VRAM …does increasing my PC RAM will affects Render time or not?

Please Help me in this regard


Hi I m from india.. i am looking for a PC for 3d Max and Vray.. looking for intel not AMD or threadripper. Can u please Suggest Two Best Configuration… my Budget is around $2000.


Hi Alex,

Thank you for all this information!!

I’m trying to build my first PC, using mainly Cinema 4D with Octane Render (sometimes SketchUP/ Vray).
I would like to start with 1 GPU (RTX 2070) but in the future maybe add at least one more.
I was wondering if a build with AMD Ryzen 2100X CPU and 32 GB or RAM would be good enough for Octane renderings (4K most of the time), I have a limited budget of CAD$ 2000 because I also want to save money for a good 4k monitor.
Do you think I should go for an AMD threadripper 1st gen or I9 build?

Thank you in advance!


Hi Alex, I apologise if this has been covered but I am trying to work out the exact ratio of cost vs convenience vs performance with liquid cooling the GPU’s. I am thinking about a 4 x RTX 2080ti workstation for rendering in redshift and compute tasks in Houdini and I am put off by the hassle of dealing with a full liquid cooled PC. I was wondering what the performance hit would be if i went for a hybrid cooled or blower cooled PC? Do you have experience with this? Thanks in advance, the comments section alone is worth the blog page.


Ha, I just read below, sorry. You answered my question


OK, I have a valid question… I hope!! The X399 and TR4 motherboards.. There seems to be a big price difference with the boards. Are there any options to look out for? or, why would toy spend $600 on a MB rather than $300? Thanks Alex.


Hi Alex, I keep reading your amazing blog and it helped me so much. I’m leaning toward GPU rendering, with a set up including a i9 9900K CPU with 2 x RTX 2070 running on 8x PCI-e lanes. I understand running this way is not a problem for rendering efficiency. But is there any drawback using PCIe lanes at 8x instead of 16x, especially regarding reactivity while tweaking the scene when doing test renders?
Thanks for your help,


Hi Alex,
A few months ago I posted here with a build similar to the following which you were kind enough to point out a few additional things to consider (I believe now taken care of in this spec). I’m just dropping a line here again as I’m looking at going for a 4GPU setup and caught between the options of a liquid CPU cooler and additional case fans or the option of a full liquid cooler system. I understand that with 4 cards there could be trouble with overheating and so the full liquid route could be better… though more expensive! I wondered if you had happily built systems with four cards and not needed full liquid cooling? any advice would be hugely appreceiated. Ive copied the two approx specs below
Thanks again,

Custom Liquid Cooling Kit
Liquid Series High Kit – EK
Graphics Card Cooling
EK FC Nickel & Backplate – For Two Identical Graphics Cards!
Overclocked CPU
Overclocked AMD Threadripper 2970WX 24 Core (3.0GHz @ up to 4.0GHz)
Memory (RAM)
128GB Corsair VENGEANCE DDR4 2933MHz ~ (8 x 16GB)
Graphics Card
11GB NVIDIA GEFORCE RTX 2080 Ti – HDMI, 3x DP GeForce – RTX VR Ready!
11GB NVIDIA GEFORCE RTX 2080 Ti – HDMI, 3x DP GeForce – RTX VR Ready!
11GB NVIDIA GEFORCE RTX 2080 Ti – HDMI, 3x DP GeForce – RTX VR Ready!
11GB NVIDIA GEFORCE RTX 2080 Ti – HDMI, 3x DP GeForce – RTX VR Ready!
1st Storage Drive
2TB Samsung 860 QVO 2.5″ SSD, SATA 6Gb/s (upto 550MB/sR | 520MB/sW)
1st M.2 SSD Drive
1TB SAMSUNG 970 EVO PLUS M.2, PCIe NVMe (up to 3500MB/R, 3300MB/W)
Power Supply


Overclocked CPU
Overclocked AMD Threadripper 2970WX 24 Core (3.0GHz @ up to 4.0GHz)
Memory (RAM)
128GB Corsair VENGEANCE DDR4 2933MHz ~ (8 x 16GB)
Graphics Card
11GB NVIDIA GEFORCE RTX 2080 Ti – HDMI, 3x DP GeForce – RTX VR Ready!
11GB NVIDIA GEFORCE RTX 2080 Ti – HDMI, 3x DP GeForce – RTX VR Ready!
11GB NVIDIA GEFORCE RTX 2080 Ti – HDMI, 3x DP GeForce – RTX VR Ready!
11GB NVIDIA GEFORCE RTX 2080 Ti – HDMI, 3x DP GeForce – RTX VR Ready!
1st Storage Drive
2TB Samsung 860 QVO 2.5″ SSD, SATA 6Gb/s (upto 550MB/sR | 520MB/sW)
1st M.2 SSD Drive
1TB SAMSUNG 970 EVO PLUS M.2, PCIe NVMe (up to 3500MB/R, 3300MB/W)
Power Supply
Processor Cooling
Corsair H150i PRO Hydro Series High Performance CPU Cooler
Extra Case Fans
4x CoolerMaster MasterFan Pro 120 RGB + Controller Kit
Sound Card


so heavily researching amd 2990wx or i9 9980xe – I’m primarily rendering on octane, have 3 gpus so far, 2080ti 1080ti and 980ti – wanna get another 2080ti (got the asus strix that is 3x the size) – so multiple problems there
– I want to render, but I also wanna build water/smoke sims etc. like phoenix fd, and getting into houdini more, and also using unreal editor .. and also I wouldn’t mind having a go with cpu/gpu renderers such as vray next and (isn’t redshift using both as well) ..

– I wanna keep all options available, since I stayed away from liquid simulations and most of the cpu intensive tasks – it’s just damn frustrating trying to learn something when the system is unresponsive enough (that’s why octane is my favorite, the response is quite fast in most stuff) ..

.. I undestand the downfall of NUMA architecture on threadrippers, as phoenix fd tests showed that less cores on an intel gives better results, 22cores on old xeon beats by a few minutes 32 cores on 2990wx.. and there are a bunch of other situations where you either still want better single core performance, and you want better memory managament that comes with intel – and mostly where amd excells is the pure rendering and whatever paralel task is better – becuase of the core numbers .. I was totally hyped on amd, managed to convince myself to invest into 2950x and then said fuck it – gona buy 2990xe (cause YOLO), and then, I started digging more into intel vs amd tests. and got a bit disapointed with amd, and now I feel intel is gonna run more stable, a bit faster single core, and a bit more reliable results – BUT we still have the number of pci lanes issue – 4 gpus – that’s 64 lanes

– and I also wanted to go mad and want to get 2 nvme m.2 disks, 1tb or 500gb for system, and 2tb for apps and storage of work files and simulations (would it be insane to have 3 ssds, one for system, one for apps, one for storage? – would I feel it? )
..this would total out the pci lanes with additional 8 or how many nvme uses?

SOooo getting back to the question what really happens if you have like 2 lanes per device (that’s 2gb.s afaik)..
– and in this case, should i sacrifice the stability of intel for better pci device support – here I can get intel o amd for very similar price, so it’s just a matter of choice ..
..also wanted to plug in the 128gigs of ram – and no one sells those in a pack, but as I’ve read here, I’ll look for some more – also regarding amd NUMA thing, the memory speed is greatly affected and causes lag, so I guess the faster the ram here would prove more benifical than on intel cpus..

What would your reccomendation be for that ultimate cpu and mainboard – for a 3d generalist, with a render performance in first place (I do as well modeling, simulations, UE, texturing (substance), zbrush, and after effects, photoshop, and cad tools) – sounds like intel would be my best bet, but what about the damn pci lanes?

andi bufi

hello people.
i just bought a amd ati radeon rx 580 8gb and i’m trying to use the latest vray rendering, but im having some problems to use, cuda,
im reading that i can’t use amd for rendering with vray next because i can use only nvidia graphic cards has the cuda tecnology. is it true??


Hi Alex first honored me for your answers to your followers
This is my PC Build
HP z800 Xeon x5670 2.93 GHz, 48 GB DDR3 of Ram,
256 GB of SSD, 2x quadro 5000 2.5 GB SLI ,850 Watt PS.
But you know in max 2018 I am used Thanking Particles so when its simulating the scene it takes much time for 1 frame, the other thing is on Lumion 8 it is also to much slower on viewport. So what I want to ask is which part of my computer is updated to fix this very low performance issues.
Note : I am working mostly on Particles simulation in differing Software’s
Thank you

Mau Borba

Hi Alex! Beautiful article. I’m not sure if someone already asked this, but what’s a good motherboard for working with i9 9900x with 4 GPUs. I’m aware the i9 doesn’t support 4 GPU’s at full speed, but in my experience, that’s not a big of a let down if you get the secondary lanes at 8x.

Giuseppe Ferrillo

Hello Alex!!! First of all, I really appreciated your articles, so in depth and well explained.
Well, here you have my upcoming configuration, my main tool are c4d, octane/redshift and Ae.
In the future I would like to expand it more with one or two rtx 84 in total), let me know you think about it:, thanks a lot really!


WS X299 SAGE Dual M.2 DDR4 Socket 2066

N. 2 RTX 2080 Ti Strix OC 11GB


AX1600i Digital 1600W Modular 80 Plus Titanium

HYDRO SERIES H150i Pro RGB 360mm x Socket 2066

2x32GB Kit TridentZ RGB DDR4-3000 CL14

Intel CORE i9 9920X 3.5Ghz 12 Core HT Socket 2066

N.2 512GB 970 Pro SSD NVMe

4TB WD RED – SATA 6Gb/s 64MB

The Tower 900 Extended-ATX NR 1 242,00 -2% 237,16

Monitor G 34WK95U UltraWide 5K



Hi alex, After some animation render tests we did on our files in 3dsmax me and my partner decided we’d better go with a workstation computer based two video cards like the 2080TI in nvlink and not to buy and render on a processor-based computer like the 2990WX.
Every test i render with my 1080TI was away away faster then to render the same scenes with my 5820K @ 4100Mhz, so i think i go the GPU based render workstation system.
That’s the spec I’ve been thinking about

GA-X399-AORUS-XTREME – Gigabyte
AMD Ryzen Threadripper 2 2950X / 2920x
64GB (4x16GB) 3200MHz DDR4 CL16 DIMM XMP HyperX Predator RGB
Enthoo Evolv X Glass or Dark base 900 REV2
2X GeForce RTX2080Ti XLR8 OC Triple Fan
NH-U14S-TR4-SP3 – Noctua

but my dilemmas are do I need a 16-core processor if in most cases I’m an going to render on a GPU based engine like VRAY NEXT GPU?
Or is it better to purchase a cheaper 12 or 8 cores TR processor or maybe go on Intel with fewer cores fewer PCI-E lanes but a higher clock speed and cheaper too like the 9900K?
should i go for the evolv x? or with 2 2080Ti the full tower darkbase 900 the cards will have more space?
thank you!

Not Victor :)

I’m guessing if you’re only putting in 2 graphics cards and you aren’t going to be rendering with something like Arnold, then go lower core count. With the money you save you can put it towards another GPU 🙂

Not Victor :)

Wow, thanks for creating and maintaining this page! It’s a very helpful and rare resource.

I currently work with Redshift and have an opportunity to acquire 6 gpu’s. I’ve been posting to all sorts of hardware forums trying to figure out the best way to build a system that would support it, but nobody seems to have experience to give a clear direction.

Currently I’m looking at the Asus WS x299 Sage motherboard paired with the i7-9800X, but I also have a Threadripper 19650x system already.

According to this article, out of 64 total lanes there are enough to run 7 gpu’s @ 8x speed, but I haven’t seen a motherboard that supports this.

Not sure the best way to proceed focused on budget. Should I convert the threadripper system into a render rig and create a second work focused station? Or just go the whole 9 yards with a new HEDT system to house the gpu’s? I’m also assuming I’ll want at least 128GB ram?


Not Victor :)

I guess right now my main concern is how much RAM is enough to run that many cards efficiently. If I could get away with 64GB that would be great, 128GB would be the most expensive line item after all the graphics cards.


Hi, Alex! Which of these cards is better to buy now for GPU render? 2xRTX 2070 or 2xGTX 1080 Ti


Hi Alex, your Blog is really awesome and helpfull!
I’m a bit new in building my own system and hope you’ll find a seccond to check my pc-build-idea.
I’ll use it most of all for C4D, GPU Rendering (Octane) and Film editing.

What do you think?

Corsair Obsidian 750D mit Sichtfenster Big Tower ohne Netzteil schwarz
MSI MEG X399 CREATION AMD X399 So.TR4 Quad Channel DDR4 EATX Retail
16GB G.Skill Trident Z RGB DDR4-3200 DIMM CL16 Dual Kit
Enermax LiqTech TR4 II 360mm CPU-Kühler
1200 Watt be quiet! Dark Power Pro 11 Modular 80+ Platinum (for more than one card in the near future)
1000GB Samsung 860 Evo 2.5″ (6.4cm) SATA 6Gb/s 3D-NAND TLC (MZ-76E1T0B/EU)
Intel Core i9 9900K 8x 3.60GHz So.1151 WOF
1(x) 11GB KFA2 GeForce RTX 2080 Ti Dual Black OC Aktiv PCIe 3.0 x16 (Retail)

The plan for the future is to build a 2nd RTX in the system
Do I miss something?

Really thnx for your time!


Hi Alex, your blog is very helpful ☺️ I would ask you a thing: does Redshift 2.5.46/48 work with new RTX graphic cards like 2080, 2080ti, etc? Or is it necessary upgrade to the last release (Redshift 2.6)?


Thanks for the helpful information Alex!
I’m building a new machine for GPU rendering (Octane/Cinema4D) so I need a strong single core performance and as much as possible PCI lanes for the GPU.

I’d like to hear your thoughts about the Build I made below.
How it can be improved? and where can I save some $$?
and since it’s going to be used for GPU rendering which cooling GPU/CPU setup do you suggest?

Motherboard: EVGA – X299 DARK EATX LGA2066 Motherboard ($248.90 @ OutletPC)
CPU: Intel – Core i7-9800X 3.8 GHz 8-Core Processor ($649.99 @ B&H)
Memory: Corsair – Vengeance LPX 64 GB (4 x 16 GB) DDR4-2400 Memory ($389.99 @ Newegg)
Storage: Samsung – 970 Evo 500 GB M.2-2280 Solid State Drive ($129.99 @ Amazon)
Storage: Samsung – 860 Pro 1 TB 2.5″ Solid State Drive ($297.99 @ Amazon)
Video Card: EVGA – 2x GeForce RTX 2070 8 GB XC ULTRA GAMING Video Card ($1100.00)
Power Supply: EVGA – SuperNOVA G2 1000 W 80+ Gold Certified Fully-Modular ATX Power Supply ($135.98 @ Newegg)
Optical Drive: Asus – DRW-24B1ST/BLK/B/AS DVD/CD Writer ($19.99 @ Amazon)

Another Victor

Hey Alex, thanks for doing this thorough explanation, I want to start doing GPU render and I have been a Mac User for a long time.. Now I want to buy a PC and I don’t want to make a mistake choosing a wrong part.
Does this make sense for you?

-Intel® Core™ i7-8700K Processor (6x 3.70GHz/12MB L3 Cache)
-DEEPCOOL Captain 360EX 360mm Liquid Cooling System
-32 GB [16 GB x2] DDR4-3200 Memory Module – Corsair Vengeance-LPX
-NVIDIA GeForce RTX 2060 – 6GB (GDDR6) (VR-Ready)
-ASUS TUF Z390-PRO GAMING — RGB, Gb LAN, USB 3.1 (6 Rear, 4 Front), ASUS TUF Protection
– 1000 Watt – Corsair RM1000X Power Supply – 80 PLUS Gold, Full Modular
– M.2/PCI-E SSD Card: 250 GB Samsung 970 EVO M.2 PCIe NVMe SSD — Read: 3400MB/s; Write: 1500MB/s
-Primary Hard Drive: 256 GB Samsung 860 PRO SSD — Read: 560MB/s, Write: 530MB/s – Single Drive
-3D Premium Surround Sound Onboard
-Intel® Wireless-AC 3165 Wireless Network Card 802.11ac Dual Band (2.4GHz/5GHz) up to 433Gbps + Bluetooth 4.2 with PCI-E Adapter
– Windows 10 Home
-Tuniq TX-2 High Performance Thermal Compound

I’m thinking to put more GPU in the future..

Thanks for your time!

Peter Hugh

” If you have to render 4 images and have 4 GPUs, let every GPU render one image instead of having 4 GPUs render on every image.” WHAT ?!?

You mean to say:

Have all GPUs Render One Image. Rather than ALL GPUS Rendering on ALL Images simultaneously.

If you’re going to write these Articles please “brush-Up” on your English. Less is More. Verbosity sucks.


If you are going to comment on someone’s writing then at least give an example that clearly demonstrates your mastery of the subject.


Hi Alex, great info. Can I ask what formula you are using to work out the redshift performance / dollar? It doesn’t seem to calculate against the time for me.


Hi Alex,

Great article and it is very much like-minded to me. There is an outstanding experience expressed on your website, which you could be proud of! Would you be interested to test my PC 7x 1080ti for your research purpose and have few notes about my pc?

It would be great to hear back from you!


Dan Goldstein

Hi Alex, great article! I’m looking to purchase an RTX 2080 Ti card in the near future to use with Maya 2018 and Redshift or Arnold (when they finally release the Arnold GPU version). Question – When deciding between different variations with say EVGA in terms of clock speeds and over-clocking, is that more or less important than the amount of CUDA cores for both the Maya viewport 2.0 and for a GPU renderer?

For example there is the EVGA 2080 Ti FTW3 card which seems to be a lot faster and a lot more expensive than the slower EVGA 2080 Ti Black Edition. So if clock speeds aren’t really the factor and the CUDA cores are then maybe I should go with the cheaper card? Thank you!



2x 1060 graphic card is better than 1080ti or not?
so thanks


Dear Alex!

Thank you so much for this article and that i stumbled upon this!
i hope you find a minute to answer this for me, i am trying to come up with a rig, i am yearning to buy….
would appreciate a lot if you could drop your 2 cents on that list

additionally appreciate a ton if you can shed some advice on the issues below .

the most frustrating is picking up RAM for the threadripper 2950X everyone is screaming out to go with G.skill trident Z as its the lastest and best optimized for threadripper (plus lot of people have issues with RAM especially i am reading a lot people have to downclock their RAM to work with the threadrippper).
the dilema is i would like to ideally get 4×16 64Gigs and later upgrate to another 4 sticks of the same. (but tridentZ doesnt have that option out of the box it only come with either 8×8 64GB OR 8×16 128GB sets) – is it safe to mix match?

after reading your post and another post from the pugetsystems (
i am thinking of getting either 4 x RTX 2070 (hoping redshift will use the RTX better soon) – only catch is how much of a difference would it make that it doesnt support NVlink. although i am not rendering incredibly huge scenes regularly.

thanks in advance


I missed to mention, i would be primarily wanting to use it for houdini simulations and Octane/ Redshift lookdevs and renders.


Hi Alex,
I’m putting together a build that I intend to use principally for GPU rendering in Redshift. However, at the moment I also still do a good deal of work in Standard Renderer in Cinema and also do a lot of work in After Affects. I therefore need to cover both CPU and GPU capability with the components I choose.. Im thinking a processor with a med.number of cores that still clocks relatively high?.. I put together this setup as an example and would be great if anyone has an opinion to share. Mainly it would be great to know if Im overspending on components that could be equaled with something cheaper here, and also if Im missing anything obvious to consider when putting together a high end setup like this… (4x 1080 Ti VS 3 x 2080Ti was one quick example I thought of)

Cheers, Matt.

Overclocked CPU Overclocked AMD Threadripper 1950X 16 Core (3.4GHz @ up to 4.0GHz)
Motherboard ASUS® ROG ZENITH EXTREME (DDR4, 6Gb/s, CrossFireX/SLI) – RGB Ready!
Memory (RAM) 64GB Corsair VENGEANCE DDR4 2933MHz ~ (8 x 8GB)
Graphics Card 11GB NVIDIA GEFORCE RTX 2080 Ti – HDMI, 3x DP GeForce – RTX VR Ready!
2nd Graphics Card 11GB NVIDIA GEFORCE RTX 2080 Ti – HDMI, 3x DP GeForce – RTX VR Ready!
3rd Graphics Card 11GB NVIDIA GEFORCE RTX 2080 Ti – HDMI, 3x DP GeForce – RTX VR Ready!
1st Storage Drive 6TB SEAGATE BARRACUDA PRO 3.5″, 7200 RPM 256MB CACHE
1st M.2 SSD Drive 256GB ADATA SU800 M.2 2280 (560 MB/R, 520 MB/W)
Processor Cooling Corsair H150i PRO Hydro Series High Performance CPU Cooler


hi alex,
I am an architect trying to set my configurations of 2 computers 1 for rendering of buildings and another for 3d modeling.. Budget for 2 systems is 1500$ each i made 2 systems configuration, Can you please suggest me suitable motherboards and other parts for both processors?

My preferences for above processors above:

System1 for 3d modelling:
CPU : Intel i7 8086k
CPU cooler : ?
Motherboard (suggest the model) with
PCIE slots = 2
Ram Slots = 4
Memory (RAM) : 1 X 16GB DDR4 4166 or 2133 (suggest model)
storage : PCIE M2 SSD Samsung 970 EVO (500 GB)
GPU : NVidia GTX 1070 (2gb)
Case : Please suggest
Power supply : Please suggest for this

System2 for Rendering:
CPU : AMD threadripper 1900X
CPU cooler : ?
Motherboard (suggest the model) with
PCIE slots = 2
Ram Slots = 4
Memory (RAM) : 1 X 16GB DDR4 4166 or 2133 (suggest model)
storage : PCIE M2 SSD Samsung 970 EVO (500 GB)
GPU : NVidia GTX 1070 (2gb)
Case : Please suggest
Power supply : Please suggest for this


Hey Alex
Thank you so much for this article! I want to use Cinema 4D with Redshift from now on with the following setup (Work and Renderstation):


CPU: Intel i9-9900K (LGA 1151, 3.60GHz, Unlocked)
RAM: 32 GB Kingston Value RAM, 2666MHz
HD: Samsung 970 PRO/EVO 1TB


CPU: Intel Core i9-7900X (LGA 2066, 3.30GHz, Unlocked)
MAINBOARD: Asus WS X299 Sage

(RAM, HD, Case, Power Supply, Cooling is to be defined)

My questions:
— What do you think about this setup?
— With the amount of the PCIE Lanes of this setup (CPU 44 PCI-E lanes) and the plx-chips on the mainboards: Is it possible to use 4 (up to 7) GPUS, am I right?

Thank you!

sheraz asghar

I am a miner and 3D Generalist. Since mining is not profitable as it used to be I want to switch my mining rig into a rendering rig(s). I have 19 GPUs 2x 64 vegas, 5x 56vegas 12x, 580 RX nitro’s. All AMD cards. I am hoping if you can tell me exactly what motherboard(s) and processers(s) to buy that will support the maximum amount of cards on each motherboard. I use MAYA/3ds max with VRAY. Currently, for mining I have 2x Biostar 250 pro motherboard(s) this supports up to 12 GPUs with riser cables. Is that something I can re-use. What would you recommend?

Thank you


How do you feel about running two rtx 2070s instead of one 2080



Is it possible to run four rtx 2080 ti in a single computer ?



Hi Alex, I have built pc with i7 8700k gtx1070 and 16gb ram. Right now I’m using standart render engine on C4D which is cpu based. Would it make a change in render time if I used a gpu based render engine such as Octane with my current setup? I know gpu renders are better with multiple graphic cards but having a single 1070, is it going to be faster than cpu rendering? How much change would it make to add a second 1070? Is there a way to compare cpu vs gpu render time according to my setup?



Hi Alex,
Thank you for sharing your knowledge. Thanks to you I understand a lot more of computers know.
I built a workstation a while ago with the help of your website.
Octane runs very fast and I’m happy but the screen freezes often. And sometimes the screen gets black for a second (Screen losing very short the signal but in normal use, not while rendering, maybe weak power supply?). Now I thought, maybe I did something wrong with the hardware:


Intel Core i7 6850K (LGA 2011-v3, 3.60GHz, Unlocked)

4x Corsair Vengeance LPX (2x 2 Set, 16GB, DDR4-3200, DIMM 288)

ASUS X99-E WS/3.1, CEB, LGA2011-v3 (LGA 2011-v3, Intel X99, SSI CEB) (x16/x16 , x16/x16/x16 , x16/x16/x16/x16) (Do this work in x16/x8/x8/x8 or not? Maybe this is a mistake?)

Dark Power Pro 11 1200 W (Maybe to weak?)

Did i something wrong?
And is it possible to replace the CPU with one it’s a bit better for simulations in my case?
Thanks for your help!

Best regards from Switzerland


Hi Alex, thank you so much for all this info.

I am a Vray user and recently have decided to make an upgrade to my old pc but I’m thinking this time to start using gpus for rendering

old pc config:
-i7 5820k 3.3GHz
-MSI X99S MPOWER (MS-7885)
-Crucial Ram 32gb 4×8 ddr4-2400
-Quadro 2000 1gb
-Tesla c2075 6gb
-PSU Corsair 850W

I’m thinking to add 2xGTX 1080 Ti with the existing PSU or 3x (3x maximum for this mboard)
with a bigger PSU and save some money of the total budget buying software, extra storage and a new 4k monitor

I’m still confused about the set up of the gpus. If I stacked 2 gpus will I take double the amount of Vram and if so should I buy an sli 2way for this?
Works also for 3 and 4?

At the end of the day you think this setup worth it for the time or should I make a new one with AMD Threadripper?


Hello, I work at a company that will be building a beastly rendering box, but I’m having a hard time finding a mining sever rack case to house all seven 1080 ti’s and the WS X299 Sage MB. The main problem is the motherboard’s CEB Form Factor (12 inch x 10.5 inch). Most mining cases only support a max of MB size of ATX.


Hi Alex, you´ve been a great source of inspiration while building our new Octane rendering machine. My question is about how much rendering power I am actually loosing right now that my two 1080TI are running at 8X due to our 8700K setup?. I mean, does it worth it to go for a 7900X?. And if your answer is yes: will I have to also change mobo (asus z370 prime A 1151 socket).
Well thanks in advance for you reply!


Hi Alex,

Amazing source of knowledge, thanks! I’m putting together a PC (moving from Mac) built for C4D, Octane & Redshift, AE and a little bit Houdini. The problem is obviously CPU. I decided to go the highest clock possible and low cores (not ideal for Houdini) but at the same time wanna keep PCI lanes’ number high. I was thinking that Intel Core i9-7900X 3.30 GHz LGA 2066 will be a good compromise between fast viewport (3.3 GHz / 4.3 GHz and a decent amount of PCI lanes (44).. What do you think?

Here’s complete build:
Corsair CC-9011030-WW Carbide Series Air 540 ATX
ASUS WS X299 SAGE Intel X299 DDR4 S-ATA 600
Intel Core i9-7900X 3.30 GHz LGA 2066
NZXT Kraken X62 (280mm)
Samsung 970 EVO 1 TB V-NAND M.2 PCI
Corsair CMK32GX4M2A2400C16 Vengeance LPX 64 GB (4 x 16 GB) DDR4 2400 MHz XMP 2.0
EVGA GeForce GTX 1080 Ti FTW3 HYBRID GAMING, 11GB GDDR5X, HYBRID (start with one and scale up to 4 over time — budget thing)
BenQ PD3200U 32 inch


Hi, Alex!
At first, I want to tell you many thanks for source! I found a lot of useful information.
All time i worked on laptops and now i want to buy realy good workstation for After Effects, Cinema 4D, Octan, Redshift.
I try to find compromise between good speed in viewport and not bad rendering in octan with maybe 3 or 4 GTX 1070ti or 1080. I understood that its almost impossible, and i should choose between viewport or rander, but maybe you can advice some options? My budget about 4000 usd.
I need your advice about CPU, GPU, MoBo and cooling fort that .
Many thanks for advance!
P.S. Sorry for my English) it not my native language)


Hi, Alex
I’ve been using octane on a laptop with 16gb ram and a 1050 ti and i’ve decided to upgrade too a proper set up since rendering is taking forever.
Now i’ve asked a friend whom knows a bit more about pc building and he gave me a list of parts to get. However he’s not very knowledged in good render pc’s so i’d like to ask you if there’s anything is could/should change to this list.

AMD Ryzen 7 1700x
Bitfenix ENSO case black
Bitfenix Spectre Pro RGB 120 fan
Corsair Builder CX 850M Power
G.skill DDR4 Fortis 2x16gb 2400Mhz Ram
MSI x370 GAMING PRO CARBON Motherboard
Samsung 970 Evo 250GB SSD
Seagate HDD 3.5 4tb HDD
VGA Gigabyte Geforce GTX 1080 Windforce OC 2x graphics card

Thanks in advance!


Hey Bouri,
Yes those are good specs. If you have an extra 100€ you can also take a look at the Ryzen 2700x which is the newer generation of the 1700X and worth it in many cases. You might need a Bios Update though for that Mainboard with a 2nd Gen Ryzen.



Hi Alex,
I am a upcoming interior designer so I am wanna built a PC for 3DS Max, Google sketchup with V Ray rendering . I decided to choose Intel i7 8700k processor , Nvidia 1080ti GPU ,16 gb of ddr4 ram and 256 gb SSD. So is this spec is good ? My budget is $2,200 to built whole PC . And also which mother board and cooling fan I should choose in perspective to upgrade in future
_ Aayush


I want to build faster pc for after effects , premiere pro, 3ds max rendering (vray) , cinema 4d and element 3d. I am just beginner so please let me know the most fast PC (CPU, graphic card , motherboard ) for $2500-$3200 budget. Please list the all equipment that you recommend so that I can buy while I am in VA near Microsoft store. Thank you!!

Geoff Coope

Hi Alex

Thanks for this post. I am currently teetering on getting a single slave or just upgrading my current machine (4700K + 1080Ti + 1070Ti, 32GB Ram) for use with GPU rendering in Max with either Vray RT or Redshift.

A second machine would free up my main machine when rendering in the day but has the added cost. So not decided which way to go on that front yet.

Anyway, my question. I need a motherboard / CPU that can scale with my work demands so looking for a CPU + Motherboard that can take 4 GPU’s but initially will only use 2. Any recommendations on current MBrd/CPU combo hardware available today? Or is the Sage still a good choice?



Hey Geoff,
Actually I am currently looking into this myself. Using a fast Computer to work on (high-core-clock) but need a high PCIE-Lanes CPU to render on, getting a second PC is somewhat inevitable.
I think the best choice currently is the Threadripper 1900X that has 64 PCIE-Lanes and together with (for example) the MSI X399 Gaming Pro Carbon can take on 4 GPUs (2 in 16x Mode and 2 in 8x Mode). The TR4 Socket will also support upcoming Threadripper generations, so a big plus in terms of upgradeability. The Sage is interesting when using Intel CPUs, since the Intel CPUs have less PCIE Lanes. But with Threadripper you don’t have this problem anymore. And running GPUs on 8x does not make a difference to 16x.


Geoff coope

That’s good to know. The new tread ripper 32 core sounds great too but not sure it needs a new mb. Thanks for reply! Will look into the motherboard

Jarratt Moody

Enjoying all of your wonderful articles and extremely handy price/performance charts.

Looking for best of both cpu/gpu worlds with high processor speed of the 8700k along with a couple 1080tis running at 8x pcie. I do mostly motion graphics using Cinema 4d and After Effects and have started using Octane as my primary 3d renderer. Does that sounds like the perfect setup? Any other pointers if so/if not would be hugely appreciated. I guess I9 7900x could be better more cores, still 4.5 ghz turbo, and allow for more gpus.

Thank you!!


Really great article, it’s helped me a lot to start to understand whats what. I’m switching from mac to PC so I need all the help I can get!
Some of the replies here are a little bit old now so I was wondering if there have been any developments in terms of the best CPU to run 4 GPUs? Looking into it it seems like the i9-7900X is a good option and the i7-6850K is maybe even better whilst being cheaper. Is there anything else to consider between these 2 CPUs or another one that you think is currently better suited to the task?


Hi Howie,
The Computex is currently going on and Intel will release some new HEDT CPUs by the end of the year. These though will be quite expensive, so I would say the i9 and Threadrippers are still the best choice for high PCIE-Lane CPUs



Thanks for the reply Alex. So if this machine is purely for GPU rendering and C4D, would you say the i9 is better than the i7 6850k?


Hi Alex,
I’m so grateful for all your help,
Unfortunately i couldn’t find any good mobo which takes 4 gpu’s as x16 in the country i’m living in at moment,
also couldn’t find EVGA 1080ti hybrid,
decided to go with x2 1080ti gpu’s on asus prime x299 delux, with i7-7820x
there are so many 1080ti versions [not hybrid] , do you recommend any alternative than evga hybrid ?
appreciate your time and effort


also why to go for x299, and not z370 ?


Hello Alex,
Thank you very much for sharing your knowledge. Very usefull.

I would like to ask you one thing, because I’m going crazy and I’m desperate with my computer problems.
I’m recently using a new computer (I bought from a company specialized in 3d work), with x4 1080ti – Windows 10 – Intel Xeon E5-1650… . I’m using Cinema 4d and Octane and some weeks ago I’ve been experimenting a lot of blue screens, screen freezes, render crashes,etc.. I can’t render a scene by night because always crashes.

I’ve noticed in Octane forums that a lot of people have the same problems, but nobody have a strong solution. I’m trying a lot of drivers versions, and the last method I read was to change the TDR values of the registry, changing 8s by 60s… like this manual:

After changing the TDR values my render don’t show “render crash” but it’s worse, because it stays frozen with no feedback…
So my problems persists, and I’m really desperated…

1. I don’t know if it’s a hardware problem, and Octane poblem or Windows problem…what do you think?
2. Do you recommend me to use Windows 7?? I think it’s my last option…

Thank you very much,


Hey Alex,

Thank you for the nice article.
As an architect I will use my computer for complex modeling plus rendering and I guess that needs a processor with max of cores (the more the better).
The problem is the more cores the less core-clock CPU.
What do you think and suggest dear Alex?

Best regards,


Hi Alex,
I am looking for a workstation configuration for redshift and octane in combination with C4d. I am planning to go with 4 gtx1080ti’s or free with any other good option. Could you please guide me with the configuration of cpu and motherboard and Gpu’s also.
Thanks in advance


Hi Alex

I recently built a 1950X machine for multiple purposes (VRay RT, AE, Premiere Pro, Audio):
1080Ti & 1080

The problem is that I found out now that the 1950X has some problems with the navigation in After Effects (and it has problems with an audio tool I often use). I really want to switch to a 8700K. The only thing that held me back was the thought of not being able to render at the same speed in 3D. But after reading your post, the 8700K would be the better solution for GPU renders anyways (since I’m mainly using VRay RT), am I getting this right?

What’s your recommendation? Should I stick with the 1950X? I don’t think Adobe is going to enable Multicore on AE again soon… oh and I plan to use 3 1080Ti sometime in the future.

Thank You!


Hi Alex, I was curious if you had seen any testing in regards to the new Titan V with redshift?



Hi Alex,

I’m upgrading my workspace by building up a new render station for Redshift and Octane. My issue is that im torn between wither going the Ryzen route or the new 79xx route. The reason being, I want to run either 3 1o8oti’s or 4 1080s at the best speed possible.

Looking at the require PCIe lanes available, i need your advice or what could potentially work best and still be future proof. I know i will get more PCIe lanes on ryzen i just havent jumped on it before.

Could you recommend some ideal compatible parts for a build for redshift, specifically on the CPU and MOBO side. Im building inside a Corsair Obsidian 900D.


Great info! Question: Have you noted the impact of overclocking (GPU and/or CPU) with respect to the results in your charts? When comparing my configuration results in VRAY Bench to the ones listed on the website, I score in the middle of similarly-configured systems. If I run everything at stock speeds, I’m out in left field. I’d be interested in your take on this, if any.


Hi Alex, first off – thank you so much for all this useful knowledge on this site, learning a lot about how I should go about building my first PC for Octane for Cinema 4D and some Aftereffects motion design.

I am torn between the i7 7700K and the 8700K, I’m planning to buy one GTX 1080Ti and add another one in the near future. If I was to go up to 2, and maybe even 3 or 4 1080Ti’s in the future, which MoBo should I consider?


Hi Alex

First of all, great post, congrats!
My concern is about GPU’s, i want to build a rendering workstation for 3ds max + Vray 3.6 and in terms of graphic cards i’m planning to use a gtx 1070 for viewport and a gtx 1080 ti for render and add 1 or 2 more gtx 1080 ti in the future.
My doubt is, it is possible to have different cards in the same build? i’m asking this, because all the people that i see building this kind of machines with multiple gpu’s, uses the same cards.

Thank you in advance.

Kurt jefferson macacando

Hi sir.. im planning to have my first ever cpu.. im planning to have a i7 7700k processor and a gtx 1070 8gb gpu.. and a 16gb ram.. can i have a fast rendering time for vray 3.0 sketchup 2017? Or a ryzen 5 1600 processor due to its 6 cores and 12 thread.. im a bit confuse.
Due to tight budget.. i really need your help for this..

Thank you sir!


Hi Alex. Your blog posts have really helped me understand pc builds for working in Cinema 4D. I’m trying to do a build with the i7 7700k and 4x1080ti cards on PCPartpicker. I can’t seem to find information on a motherboard that would support this configuration. Any advice? Thank you in advance!

Deb Pearl

My son has been looking for a new graphics card and I wanted to look up some information about them. That is great news that they have matured quite a fit over the last couple of years. That means my son could probably find exactly what he wants for his computer easier. Thank you for all the information! I will be sure to show my son.

Frank Gomez

Hi Alex,

Thank you for your posts, they are very helpful. Two questions:

1. Regarding the i7-7700K. If I use 1TB Samsung 960 EVO M.2 NVMe PCIe in my build. Would this affect the PCI lanes for the GPU? Or would the GPU still run x16?

2. If I want to run 4 GTX 1080ti at full speeds (x16), would i have to move to the Xenon processors? What mobo should I use?

Thanks Again.



Hi, Aelx

Good Post!

A question if I want to have 4 gtx1080 in a corei7 6800k that would have lost for rendering with octane? Is insignificant? or it would be worth buying 6850k to be able to have the 4 gtx.

And what kind of cooling you recommend for these 4x gtx1080, thank you very much for your time!



Hi, Aelx
Can i use 4 GPUs (my preference 1070) with 7700k? for octane.
If can, then which Motherboard to choose.