Planning on a future 3D-based PC build, can I use my old Asus Strix GTX 1070 (open air) in the new build as a secondary GPU?

[DZoned]

To let this post be a bit easier to process, I need to make a few statements clear for the future build and my preliminary plan:

• I plan to get a consumer Nvidia GPU, saving and waiting for Nvidia rtx 4000 or 5000 series if my GTX 1070 can last that long
• CPU choice so far is leaning towards AMD Ryzen
• Reusing my current case if compatible for future components and thermal performance (Cooler Master Storm Stryker)
• The future GPU might be most likely be an open air style, since I barely see any blower style these days
• Yes I run software that can have use of a second GPU working on something seperate from my 3D softwares, it's not something unecessary for me

Summary for this part: I want to still be able to use my GTX 1070 without needing to buy a new seperate build (maybe as a render farm or something) for it or sell it.

Some problems that I think about when it comes to have a future Nvidia card together with a GTX 1070 in the same build:

• Compatability for the components+drivers to be able to handle them, as they are of seperate performance
• Thermals if both of them would be open air
• Power draw, this should be ok if I get a PSU that can handle them both at the same time (taken into account they can both run at 100% performance)
• Underclocking and/or undervolting both or one of them seperately, for the reason of room temperature during summer

I understand this combination is very odd but I would greatly appreciate thoughts on this, I just want to have use of the hardware that I already got instead of getting rid of it, but if it's even worth the hassle of having both of the GPUs in the same case.

 

[Alex Glawion]

You will only have driver issues if the new GPU is non-mainstream, e.g. pro-level (Quadro) and therefore needs separate drivers. If it's just a new "gaming" GPU, you should have no driver issues.

You'll need a well-ventilated case for two open-air-cooled GPUs. It's certainly possible, even with just one or two extra case fans but you should then expect earlier throttling on the GPUs.

A new PSU will have no trouble with both. You'll probably need around 850 or 1000W.

I don't think you need to underclock. GPUs handle clock-speeds themselves and throttle if they get too hot. Best thing is to just get 2 more case fanse to really have nice airflow and it should be ok.