Mugen

One of the very best upgrades you can make to your PC is to install an aftermarket CPU cooler. There's nothing that says "custom PC" like a sweet hunk of metal looking back at you every time you pop open your machine (or better yet, every time you look at it through a sleek tempered glass side panel!). Whether you're trying to achieve lower noise, higher overclocks, or just that tricked-out look, there's a great CPU cooler out there for you, and this Buyer's Guide lists the very best of the best at every price point! And take note: we update this guide on a quarterly basis to ensure that you always get the latest and greatest gear, not the same old cooler everyone's been using for the past decade!

For Summer 2018, we've updated this guide yet again, featuring our top 10 favorite coolers on the market. Over the years, we've published reviews on more than 30 coolers, so we have a pretty good sense of what's hot and what's cool, if you know what we mean! You can learn more about the various models we've surveyed in our broad catalog of CPU Cooler Reviews. The newest additions come from Noctua, SilverStone, Scythe, and Corsair. 

Here are a few tips we've put together based on all of our testing:

  1. Tower-style coolers will always outperform equivalent downdraft coolers of the same price/size.
  2. All else being equal, larger fans provide more cooling performance at lower RPMs (and noise), but coolers taller than 160mm will be unlikely to fit in a lot of mid-sized cases, and all air coolers using 140mm fans are taller than 160mm.
  3. The quality of the fan bearings has a lot to do with the overall user experience; standard sleeve bearings can often sound rougher than fluid-based bearings.
  4. Larger coolers generally perform better, but you quickly run into clearance issues with RAM and video cards when using air coolers, and roof-mounting space for liquid coolers.
  5. Modern liquid coolers will always out-perform air coolers, even at the same price, at the expense of a bit more noise due to the pumps they use.

By the way, unlike a lot of other categories of PC components, CPU coolers can be used in multiple systems over time, making them a very good place to invest in the best you can afford. And while all coolers come with thermal paste (also referred to as thermal interface material or "TIM"), you might want to consider investing in really good paste as well, since you probably won't want to change it all that often. The three best products in terms of performance, usability, and longevity are Gelid GC-Extreme, Noctua NT-H1, and the newest, best kid on the block, Grizzly Kryonaut. Which product doesn't make the list? Arctic Silver 5. Despite outselling all other TIMs combined, it is, in a word, garbage. Do us a favor and don't buy it when it pops up as a recommended product at checkout!

CPU Coolers - Summer 2018

    CPU Cooler:

    Noctua NH-L9i

    We start with an excellent low-profile model from Noctua . It's just 37mm high, meaning it can fit in absolutely any PC. This is the one and only aftermarket cooler that we feel comfortable recommending to any PC user, for the simple reason that it will fit everywhere the stock Intel cooler will work. While there are more powerful low-profile coolers out there, they are often taller or wider than the NH-L9i. In our recent Low-Profile CPU Cooler Shootout, it came away a clear winner thanks to its combination of ultra-low-noise and better performance than the stock Intel heatsink. That's a win-win.

    The Guru's Tip:

    Note that the AMD version of this cooler is a separate model, two in fact. The discontinued NH-L9a for older AM3 platforms, and the new NH-L9a-AM4 edition for modern Ryzen-based PCs.

    CPU Cooler:

    SilverStone AR11

    If you need extreme cooling power that fits into the space of Intel's stock cooler, the new 47mm-tall AR11 from SilverStone is the clear choice. It can cool any of Intel's Core i5 and Core i7 processors, including ones that don't even include an Intel cooler (because that cooler is not capable of cooling them). It's rated at up to 95W in a compact case, or over 95W with adequate case cooling.

    The Guru's Tip:

    Read more about the AR11 in our hands-on review. Note that the AR11 is not compatible with the AMD AM4 socket.

    CPU Cooler:

    Cryorig H7

    The very best cooler under $40. That's what you're getting in the Cryorig C7. It's compact yet very powerful, and is also amazingly-easy to install (as in the easiest on the market!). And thanks to its very high-quality fluid dynamic bearings, the included fan is virtually silent. Another great feature is its offset design, which allows it to be used on ITX motherboards and systems with tall RAM. Learn more about it in our recent 120mm cooler comparison review!

    The Guru's Tip:

    We know a lot of readers are probably saying "but where's the Cooler Master Hyper 212 Evo"? Yes, we've used it before, and yes, we know it's the #1 selling CPU cooler in the world. But the honest truth is that it's not that good, and in fact has one of the worst fans we've ever come across on an aftermarket cooler. Please don't buy it.

    CPU Cooler:

    Scythe Mugen 5 Rev. B

    Do you want to go big without spending a ton of money or risking major system incompatibilities? Then Scythe has the cooler for you! Featuring a huge heatsink and the awesome Kaze Flex 120mm fan, it provides fantastic cooling at ultra-low noise levels. Seriously, the Kaze Flex is the best fan you'll find on any 120mm-class cooler, period. And thanks to an offset design and a height of just 155mm, this cooler will fit in all mid-sized cases, can be mounted on any motherboard, and won't block RAM slots. It's really quite exceptional!

    The Guru's Tip:

    This model also includes an AM4 bracket right in the box, making it our top pick for users of AMD Ryzen CPUs.

    CPU Cooler:

    Noctua NH-L12S

    If your PC requires a low-profile cooler and has at least 70mm of clearance, you simply can't do better than Noctua's NH-L12S. It's ultra-quiet, incredibly easy to install, and will fit over RAM heatsinks as long as they're under 35mm, which includes Corsair's best-selling Vengeance LPX line. See how it compares to the "big guns" in our latest CPU cooler roundup! We know a lot of folks are interested in the older Scythe Big Shuriken 2, but honestly, the NH-L12S is just leagues ahead of it.

    The Guru's Tip:

    This is Noctua's first new cooler since 2015, and the only one to include both Intel and AMD AM4 brackets right in the box!

    CPU Cooler:

    Noctua NH-U14S

    In our opinion, the NH-U14S is the best all-around air cooler on the market. We've tested a bunch, and yes, there are a few air coolers with more power, but none is as elegant or efficient as the NH-U14S. It installs in minutes, does not block RAM or PCIe slots, and is incredibly quiet thanks to its ultra-high-end Noctua NF-A15 140mm fan. Of course, that big fan makes this a big cooler. At 165mm tall, it's about the tallest cooler you'll be able to fit in standard ATX cases. If you have a compact ATX case, though, chances are it simply will not work, nor is it compatible with micro ATX builds.

    The Guru's Tip:

    We're dead serious about this pick, even if Noctua would have you believe the NH-D15 or NH-D15S are better. We've tested all three, and the bigger coolers are far more expensive, much harder to install, don't fit in many cases, and don't perform significantly better. If you need more cooling power than the NH-U14S can provide, we suggest you step up to a liquid cooler.

    CPU Cooler:

    Corsair Hydro Series H60 2018

    If you want extreme cooling in a compact package, you want to go with water. And the very best compact liquid cooler is the new H60 from Corsair. While it borrows the same name as its many predecessors, it's actually all-new for 2018, offering quieter operation, sleeker styling, and cool white LED lighting. It also happens to outperform every single air cooler on the market, including ones that cost quite a bit more. For that reason, we don't recommend any air coolers above the H60's pricepoint.

    The Guru's Tip:

    Want to learn more about this cooler? Read our full review! It will significantly outperform the Noctua NH-U14S listed above, and can fit in more cases, but comes with the tradeoff of more noise.

    CPU Cooler:

    Thermaltake WATER 3.0 Riing RGB 240

    Want to get your feet wet with liquid cooling (figuratively, not literally!)? There's no better place to start than the awesome Water 3.0 Riing RGB 240. This model offers awesome performance and ultra-quiet operation, along with unique aesthetics thanks to its patented Riing RGB fans. And after a recent price cut, it's a simply exceptional deal!

    The Guru's Tip:

    We tested the larger version of this cooler in our liquid cooler shootout, and it was unbeatable in terms of its performance-to-noise ratio.

    CPU Cooler:

    Thermaltake Floe Dual Riing RGB 280

    Thermaltake is forging ahead as its competitors get left behind in the cooler business. This awesome model uses a 280mm radiator for massive cooling potential, and features not only two awesome Thermaltake Riing Plus addressable RGB 140mm fans, but also an RGB pump cover, which is unique to the "Floe" model. It's seriously the best-looking cooler out there, and based on our testing of the Riing 140mm fans in multiple reviews, we can assure you that these fans are incredibly quiet.

    The Guru's Tip:

    This cooler comes with a breakout controller box to control its RGB effects.

    CPU Cooler:

    Thermaltake Floe Triple Riing RGB 360

    For extreme cooling needs, step up to this big 360mm model from Thermaltake. Featuring the same basic design as the Floe 280 above, you get a longer radiator, along with three 120mm fans, rather than two 140mm fans.

    The Guru's Tip:

    This cooler will work in a number of cases that the Floe 280 won't, due to its narrower width of 120mm, while performing a bit better. The extra width of the 280 (which is 140mm wide) makes it impossible to install in cases designed around 120mm fans.