Securing the best CPU cooler will protect your machine from overheating and ensure you get the best performance out of your processor. A CPU cooler is vital for any machine, but if you plan on overclocking or using a high-end CPU you will need to consider how capable your choice of cooler is.

There are two types of PC cooling options: air cooling and liquid cooling.Air coolers are often the most affordable. They involve a metal heat sink that pulls heat away from the CPU, then a fan is usually used to whip air around the heat sink and get that heat dispersed quickly. The best air cooler we’ve tested is the Deepcool AS500 Plus. It’s a big boy with low noise levels and isn’t super expensive.

Liquid cooling, sometimes referred to as water cooling, works by circulating liquid through your system via tubing. It’s generally more efficient than air, though a custom water cooling loop will be more costly and require some know-how. An all-in-one cooler is the simplest liquid cooling option, and the inexpensive Arctic Liquid Freezer III 280 A-RGB is the best choice if you want to go down that route.

Each of the coolers on this list has been thoroughly tested in the PC Gamer test bench, so I can tell you which offers the most optimum CPU cooling under different workloads. If you’re looking for other ways to help get rid of hot air, you can check out our guide to the best PC fans.

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The Quick List

The best overall

Arctic’s successor to the popular Freezer II is more than a simple update. It’s by far the best overall AIO cooler you can buy right now, even if it is quite fiddly to install in many PC cases.

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The best budget

Looking to save some pennies? You can do that and still score a capable cooler with the Deepcool Gammaxx.

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The best high-end

Huge name, huge radiator, huge cooling.The H170i Elite Capellix XT is all these things and more, but pleasingly, the price isn’t all that huge for such a massive cooler.

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The best air cooler

You can usually save some money going for an air cooler, and they’re still plenty capable, compact, and quiet—like the AS500 Plus.

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The best high-end air cooler

Noctua are top dog for fans and top dog for coolers. They can be a bit more expensive than others as a result, but you really can’t fault the quality.

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The best passive

If you can’t stand any noise whatsoever from your PC, you have to go passive. No moving parts, higher temps, but you might just survive with a cooler like this one from Noctua installed.

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This page was updated on July 19 to add new recommendations for the best liquid coolers.

Best liquid cooler

The best liquid cooler has to be the Arctic Liquid Freezer III. It’s simple, straightforward and does a stupendous job of keeping a CPU nice and chilly.

The Freezer III retains the affordable price tag of its popular predecessor, the Freezer II, and keeps the tiny fan on the tip of the pump to keep your VRM cool. That might seem silly, or a gimmick, but effective VRM cooling is an underrated feature that we don’t see too much of these days.

The Freezer III works across both Intel and AMD CPUs, though it only supports newer Intel sockets, effectively 12th Gen chips or later. It uses a proprietary mounting system that requires you to remove the original ILM and fit the new bracket included with the cooler on. It sounds complicated but it isn’t. That said, it can be a bit fiddly.

Once it’s loaded onto your chip, it provides excellent cooling capability. The 280 mm version tops the competition and without generating an absurd amount of noise. That’s thanks to the 140 mm fans included here, two of Arctic’s P14 140 mm. That’s a big plus point for a more affordable liquid cooler—some of which have loud pump whine to make up for a performance deficit.

The addressable RGB LEDs included on both fan and radiator are adjusted via the motherboard UEFI or third-party software—there’s no Arctic software provided to deal with them, though that might be a blessing for some software sick gamers. I’m pretty tired of having five different apps controlling various components inside my PC. This cooler makes for one less.

With all that and an affordable price tag, there’s no topping the Arctic Liquid Freezer III.

Best cheap liquid cooler

Deepcool is well known for its capable AIOs at affordable prices, and the Gammaxx L240 V2 is the best budget liquid cooler on the market. That makes it a great option for users looking to step up from air cooling into the world of AIO cooling.

The Gammaxx 240 mm features basic RGB lighting on the pump head and fans. There’s a more expensive ARGB version, should you really want it. Deepcool likes to talk about its ‘Anti-leak technology,’ which seeks to maintain an optimal pressure balance inside the loop. Which certainly can’t hurt.

The Gammaxx 240 can also cool most processors, though, like many of the chip chillers on this list, it draws the line at AMD’s Threadripper beasts. But it keeps the rest running with remarkably low noise levels, which is one of the main reasons we recommend it.

At idle, the L240 is effectively silent. As you’d expect, you will start to see an increase in temperatures and noise levels with high TDP processors, especially when overclocking. Our 5800X CPU with PBO enabled is about the maximum we’d consider appropriate for a 240 mm cooler. Under load, the fans can and do ramp up quite a bit.

If you’re after a 240 mm AIO that’s inexpensive and quiet under less demanding loads, then the Deepcool Gammaxx L240 is a great choice. Sure, its noise levels can get high if you push it hard, but at this price, it comes highly recommended.

Best high-end liquid cooler

Coming in as our pick for the best high-end liquid cooler is the Corsair iCUE H170i Elite Capellix XT. There’s a whole lot of cooling performance on offer with the H170i Elite—if you can look past its absolutely ridiculous name, that is.

This cooler’s excruciatingly long name does hint at its massive size, at least. This is a triple 140mm fan cooler, and as such requires plenty of room inside a chassis to mount it. You’ll need a gap for a 420 mm radiator to sit somewhere, and only some larger or cleverly designed cases can manage it. But in return it can run those three fans relatively slowly, and that means quieter operation, yet with excellent thermal performance.

This is actually the liquid cooler we have hooked up to our test rig right now, and we’ve found it to be excellent for keeping Intel and AMD’s latest CPUs in check. That includes today’s best CPUs, such as the Ryzen 9 7950X and Core i9 13900K, which all ran without any issue whatsoever with this cooler attached.

There are smaller sizes available with the same fans and cooler setup as this 420mm beast. The most popular of the lot is perhaps the 240 mm version, which should fit most modern PC cases.

If you’re looking for over-the-top cooling, however, it’s this 420 mm liquid cooler that we feel is best for the job.

Best air cooler

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The Deepcool AS500 Plus is the best all-round air cooler for its blend of performance and price. The original AS500 received worthy attention when it was released, but the AS500 Plus, with its additional fan, elevates it to the point where it can compete with any single tower cooler on the market. At the same time, it undercuts competitors in price.

There aren’t many dual-fan ARGB-supporting coolers at this price. Even if you spend double the money on a premium single-tower cooler, your cooling performance won’t be much better.

Its cooling ability belies its compact dimensions. Only more expensive dual-tower coolers beat it, and even then, not by a whole lot. Its dual fan design no doubt helps. It’s also surprisingly quiet.

Even when pushed hard, the cooler doesn’t get excessively loud. Cooling and low noise levels are welcome, then add to that great build quality and subtle ARGB good looks, and there’s nothing to complain about. It even comes with its own ARGB controller, and there’s a white version, too, if you like.

The Deepcool AS500 Plus punches above its weight (and price). It cools very well; it stays quiet, has great build quality, a subtle ARGB splash with its own controller, and on top of all that. And finally, it is a great value relative to many dual-fan single-tower coolers. Short of stressing it with a heavily overclocked high-end processor, the AS500 Plus ticks all the boxes. Highly recommended.

Best high-end air cooler

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The Noctua NH-D15 Chromax Black is our pick for the best high-end CPU air cooler. It’s also considered by many to be the best air cooler on the market. It’s an easy inclusion on our list of recommended coolers. It performs brilliantly, has excellent fans that are a welcome black color instead of that rather unsightly beige and brown (sorry, Jacob), its build quality is fantastic, and Noctua’s packaging, accessories, and documentation are second to none.

Really, only 360mm AIO coolers outperform it. If you want an air cooler that can handle any consumer CPU on the market, you might find one to match the Noctua flagship, but you won’t find anything that truly beats it.

Under normal operation, the NH-D15 can be considered truly silent. When pushed hard, it becomes louder than you might expect, such as you might get when hammering out an AVX load, but we don’t mind having some optional cooling headroom when you need it. Even a 5GHz+ Core i9 14900K will run quietly while gaming.

The NH-D15 also comes with two 140mm fans, which run slower than their 120mm counterparts, for quieter operation, but move plenty of air. If two of these are too loud for you, you can always remove one if needed. However, if you want to remove both for a truly silent CPU cooler, you’d best look at the Noctua NH-P1 below instead. That’s actually designed to run without fans.

But why isn’t the NH-15 number one on our list? It’s probably overkill for many PC builds, especially if you’re running your chip stock. It’s absolutely overkill as a straight swap for the stock cooler that comes with many Intel and AMD chips. Perhaps the sheer size of it, too, though that can easily be forgiven considering its excellent performance.

Notably, Noctua has a long tradition of adding support for new sockets, and an investment in an NH-D15 Chromax Black means you’ll have a top-shelf cooler that will last you for many years. That said, make sure to check it’s compatible with your socket of choice before buying one.

Best passive cooler

You might see nothing more than a hulking CPU cooler at a glance, but the Noctua NH-P1 is far more exciting than that. As a passive design, it requires no fan to keep your CPU at a stable temperature. Yes, even while gaming. And if you hadn’t already guessed, that’s a pretty big deal for silent PC builds.

The NH-P1 is capable of cooling even high-end CPUs using only natural convection. That’s sort of what makes it a big deal in the cooling world. It does this through a design vastly disparate from your standard chip chiller.

Essentially, this passive cooler can keep a decent gaming processor powered up. We’ve tested the NH-P1 on our Core i7 10700K open test bench—which has no fans and therefore completely unoptimized airflow—and while it may throttle on seriously CPU-intensive benchmarks, it flew on our standard gaming tests.

Compare the NH-P1 to theNH-D15(Noctua’s high-end CPU cooler), and you’ll notice a few differences between the two. The most immediate is the density and thickness of the fins that make up most of the cooler’s large size. These fins act as the fundamental heat dissipation method for an air cooler, and strangely the NH-P1 comes with fewer than the tightly packed NH-D15.

The NH-P1 also features a grid of cut-outs horizontally through the more relaxed design, which again should help airflow naturally flow across the cooler and, importantly, sap away the heat transferred into the fins from the heat pipes.

The heat pipes are undoubtedly of major importance here. Sit the NH-P1 side-by-side with the NH-D15, and you’ll notice they’re oriented differently. The heat pipes are the longest along their horizontal axis, which will undoubtedly impact heat dispersion due to the reliance on gravity for a heat pipe to function. The NH-P1 is a niche product with particular use cases, with some drawbacks.

It’s unlikely to unlock your chip’s maximum potential, and it can’t be paired with a hulking triple-fan enthusiast graphics card for a good reason. All of which will rule it out for many. But what if the NH-P1 is not a CPU cooler to fit all PCs? A silent, failproof, or dust-proof design with far more capability than underpowered passive designs of the past is a massive win for PC builders limited by circumstance. And all it takes is being a little smarter about how you piece your machine together to get it all working relatively harmoniously without even a whiff of active cooling.

Read our fullNoctua NH-P1 review.

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