Guide To Laptop Cooling Pads – Do They Really Work?

CG Director Author Christopher Harperby Christopher Harper   /  Published 
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Guide To Laptop Cooling Pads – Do They Really Work?

Do laptop cooling pads really work as advertised?

Even if they do, how can you be sure that they’ll actually work for your laptop, and how do you find one that actually suits your needs?

Before you get too deep into laptop cooling pads alone, it’s important to start with an understanding of laptop cooling in general.

I’ll also be including some follow-up questions after we’ve answered the main one.

Time to dive in. You can skip ahead as you please.

Understanding Laptop Cooling

First, it’s important to understand that laptops are at an inherent disadvantage in cooling when compared to traditional desktop PCs.

Laptop VS Desktop Cooling

When you take hardware of roughly the same power and make it smaller, it’s going to generate much more heat since it’s confined in a smaller space.

With more heat, you’re more likely to experience thermal throttling (reducing performance to stay cool) or outright overheating.

This is an especially prominent issue with laptops that are fairly thin but still considerably powerful.

If you’re thermal throttling, you won’t be able to make the most of whatever powerful CPU or GPU is actually inside of your machine.

This is a known issue with some Apple laptops due to their extreme focus on slimming down the internals, sometimes even skipping fans for Macbook Airs.

Another issue with laptops, when compared to desktops, arises when you realize that thermal paste doesn’t last forever.

Especially with heavy use, thermal paste does degrade over time, and with a laptop, it’s a lot harder to remove the cooler to replace it.

I once had a Toshiba Satellite that my uncle purchased in 2007.

It was a pretty powerful laptop at the time, and even when I got my hands on it in 2012, it still performed decently in then-modern PC games.

Unfortunately, that soon changed when the thermal paste in the laptop gave way, and I continued using it pretty heavily as it continued to degrade.

By the time I stopped using it 2 years later, I called the laptop “Old Melty” because it was constantly thermal throttling and regularly locked at 100+ degrees Celsius.

This isn’t completely the laptop’s fault, of course- there are definitely steps I could have taken to fix it.

But I was young and dumb at the time, and also it lasted for about seven years- not bad for a laptop at all.

Fortunately, being a laptop- even a relatively slim one- doesn’t necessarily doom you to having bad cooling.

Many laptops these days are built with more intelligent and enduring cooling designs.

Some even forgo the traditional thermal paste in favor of using liquid metal, which performs better than the majority of thermal compounds.

Who should use liquid metal Thermal Paste

However, there are risks to using something like liquid metal to cool a PC.

For one, since it’s literally exactly what it sounds like if you happen to spill even a bit of it outside of the limited surface area where it can be applied, you’ll very likely brick your machine.

Secondly, it may actually require more frequent re-application than standard thermal paste, especially when done as an aftermarket mod and not from the factory.

So for most people, such an extreme solution to limited cooling probably isn’t what you want.

More likely, you’ll want some kind of external laptop cooler- like the ones we’re talking about today. Let’s get into it.

Do Laptop Cooling Pads Really Work?

Largely yes, but there are some caveats to this.

For one, a laptop cooling pad will not do much to alleviate a deeper issue with your cooling.

For instance, if your thermal paste has been worn out after owning a laptop for 5+ years, chances are a cooling pad won’t improve your temperatures very much, because cooler air doesn’t matter if heat isn’t being properly transferred from your CPU/GPU to your cooler.

How long does thermal paste last

So if you notice that your laptop is reaching extreme temperatures (90+ C) on a regular basis when it didn’t before, chances are a cooling pad by itself isn’t going to do very much to help.

You’ll want to dust your laptop and replace its thermal paste first. If you don’t know how to do this, definitely let a technician take care of it.

That being said, a laptop cooling pad does generally work, especially if you choose the right one to suit your system.

Even budget options on Amazon can reduce a laptop’s CPU temperatures by up to 12 degrees, but GPU temperatures see much less of an improvement in the same test by Notebookcheck.net. (This was also tested with a laptop that already had large venting on the bottom as well, making it even more ideal for those tests.)

In some more thorough testing of various modern laptops and coolers by Jarrod’sTech on YouTube, improvements seem to be much more reigned-in, differences of 7-10 degrees are more common in his testing.

In my own testing with laptop coolers on my MSI GL63-9SDK before selling it on Amazon in 2020, I experienced a reduction of about 8-10 degrees Celsius with the addition of an active cooling pad.

I also enjoyed a minor improvement of about 3 degrees by stacking that on top of a ventilated laptop stand.

Ultimately, no amount of laptop cooling pads would eventually prevent my laptop from eventually experiencing thermal throttling.

While cooling pads delay throttling, hardware can only be run at full speed in a small space for so long before it needs to slow down and prevent overheating.

Laptop Cooling Pad Types

Passive Laptop Cooling Pad

A passive laptop cooling pad refers to a laptop cooling pad without any fans or other moving parts.

These primarily serve to elevate the laptop and allow it access to mostly unrestricted airflow from beneath.

Passive Laptop Cooling Pad

These are usually advertised as laptop stands with ventilation but still fit into this article.

As long as your laptop’s intake is at the bottom, these should actually work pretty well.

However, they’re unlikely to do very much for laptops that have weak fans or don’t have fans of their own.

Very few laptops exhaust from the bottom, but if they do this may also be the ideal choice for them.

Active Laptop Cooling Pad

An active laptop cooling pad is probably what you initially pictured coming into this article: a flat mesh rectangle with case fans inside, usually for about twenty-to-fifty dollars.

Some of them can be a bit flashier or have more or fewer fans, but this is generally what you’ll be looking at.

Active Laptop Cooling Pad

Most laptops use bottom vents as intake rather than exhaust.

With these laptops, a cooling pad like this will be the ideal choice over a passive pad due to improving the existing airflow.

However, if the laptop exhausts from the bottom, the fans will actually be working against good airflow.

In this case, you’ll definitely be better suited with the passive option.

Attachable Laptop Cooler / Vacuum Laptop Cooler

Last but not least, let’s talk about attachable laptop coolers, also called vacuum laptop coolers.

The way these work isn’t by improving intake, but rather accelerating exhaust.

You attach these to wherever your laptop’s exhaust vent is (as long as it’s on the sides or back), and they will push hot air accumulating out of your laptop faster than the built-in fans can.

Laptop Vacuum Cooling through USB Port

Unfortunately, these are a lot harder to recommend than an active or passive cooling pad, since compatibility is also reliant on device thickness rather than just surface area or intake/exhaust location.

Even if your laptop is compatible, having stronger exhaust may not be particularly helpful, especially if choked intake was the problem. (And it’s more likely to be.)

FAQ

What kind of laptop cooling pad do I need?

Well, before you even consider buying a laptop cooler of any kind, make sure you understand how your laptop is already cooled.

Where does it bring in air, and where does it exhaust it?

For most laptops, air is brought in from the bottom and exhausted at the sides or back.

Laptop cooling vents

You’ll be able to identify your exhaust by whichever vent is actually pushing out air, which should be warm or even hot.

As long as your exhaust is on the side or back and not the bottom, you can pretty much take your pick of a cooling pad.

A passive cooling pad will be the cheapest and also quietest since it doesn’t have any moving fans. They also tend to double as adjustable laptop stands, making them ideal for desk use.

Just make sure not to get them with something like a fan-less Macbook Air, as a passive cooling pad can only supplement existing cooling with more airflow.

As a plus, a passive cooling pad should synergize pretty well with a laptop that has a bottom-mounted exhaust vent, since it’ll give more room for heat to escape than it would otherwise have.

An active cooling pad will be the best choice for most users but is going to be a bit noisier and consume power due to the attached fans. You also won’t want to use it with a bottom-exhaust laptop, since conflicting airflow is bad airflow.

That aside, they largely work as advertised, you’ll just want to make sure that your laptop can fit and there’s either one very large fan or 2-3 fans in good places.

Finally, an attachable laptop cooler or vacuum laptop cooler can help boost an underperforming exhaust configuration…but if your exhaust is already fine, you’re unlikely to get a better result than you’d get with a cooling pad.

This portion of the market also has a lot more compatibility and performance issues, since you need the right thickness to be able to attach the cooler and form a proper seal.

If you aren’t afraid to do a little extra research to ensure compatibility, an attachable cooler should serve you well.

Plus, if you already like your laptop’s form factor and aren’t trying to double its thickness in your lap or on your desk, then this might be the better option.

Are my temperatures good enough without a laptop cooling pad?

Chances are if you’re here you’re concerned about your laptop’s temperatures.

But before you go making any buying decisions, let’s be real: are your temperatures already fine?

If your laptop isn’t overtly overheating, chances are you’re fine.

Especially if you aren’t going over 90C under load, you don’t need to be too worried that you’re hurting your machine or something.

However, if your laptop is regularly throttling as a result of reaching its top intended temperature, you may want to get a cooling pad.

More on this in the FAQ below.

Will a laptop cooling pad improve rendering performance?

Whether you’re a professional or a gamer, rendering intensive scenes is going to take a lot out of your CPU and GPU.

While a laptop cooling pad won’t necessarily increase your FPS or shorten your render times, what it should do pretty effectively is push back the amount of time it takes for your laptop to begin thermal throttling, even indefinitely if your laptop already has great cooling and is well-designed.

What is Thermal Throttling

Think of it as more of an endurance booster to your existing cooling setup than something like a liquid cooler enabling CPU overclocking.

Can I combine laptop cooling pads?

Yes, but you’re unlikely to see a massive improvement.

I’ve personally combined an active and passive cooler before, but at best I was able to observe a difference of at most 5 degrees between that and just using my active cooler by itself.

The laptop was placed on the active cooler, which was placed on the passive cooler.

Both coolers being mostly mesh meant that airflow was maximized, but the fans were doing most of the work at that point, so the extra intake didn’t do too much.

Ultimately, laptop coolers can only supplement what is already there.

If your laptop isn’t built in such a way that it can effectively suck in and blow out air, it doesn’t matter how many fans you add to it.

Raw airflow can only do so much by itself, and even then, you’re really only going to get airflow at its best with a full-sized desktop PC.

Are there other ways to lower my laptop’s temperatures?

Yes!

One important thing to do, especially if you’re here because your laptop used to run cool but doesn’t anymore, is to replace the thermal paste.

We wouldn’t recommend liquid metal for most users, but finding some high-performance thermal compound to use after properly opening up your laptop and cleaning the dried thermal paste should improve your cooling a good bit.

Even if your laptop isn’t starting to overheat as a result of age, replacing the factory thermal paste with high-performance aftermarket thermal paste is a low-risk way to tangibly improve your laptop’s temperatures.

However, you’ll also need the know-how to replace your thermal paste or pay a technician to get it done for you.

That’s a lot harder than just using a cooling pad, but it will give you better returns.

Over to You

Have any other questions about laptop cooling pads? Feel free to ask us in the comments or our forum!

Christopher Harper - post author

I have been a passionate devotee to technology since the age of 3, and to writing since before I even finished high school.

These passions have since combined into a living in my adulthood, and has made writing about myself very satisfying.

If you need any assistance, leave a comment below: it’s what I’m here for.

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DZoned

Great article!

I personally own a KLIM cyclone cooling pad 15 inch size for my Asus scar 2 laptop.
My initial experience and result using it was that even though it made some slight change to temperatures, it managed to force more dust inside the laptop as the cooling pad had an easier time picking it up, resulting in dust clogging the gpu fan after a maximum of 1-2 months.

So right now I just use the cooling pad turned off as an excuse to keep the laptop up from a table flat surface, but ready to have the fans being used if I would need to do some rendering on the laptop (hopefully not).

Alex Glawion
Alex GlawionCGDIRECTOR

Thanks DZoned,
That’s a good point. Increased Airflow will definitely make the dust build up more quickly, so opening it up to clean it becomes more important.

Cheers,
Alex