Best CPU cooler in 2021
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The Best CPU Coolers in 2021

The Best CPU Coolers in 2021 – You want the best CPU cooler you can get, whether you’re aiming for world-record overclocks, or just a PC that doesn’t get loud under load. Choosing the best cooler for your best CPU is an important decision in any upgrade or new PC build.

The Best CPU Coolers in 2021

The Best CPU Coolers in 2021 – Keeping your CPU temperatures low is essential for good gaming performance from your PC, whether that’s because you’re planning to overclock, or to prevent performance throttling and ensure reliability.

That’s why we’ve assembled this guide to buying the best CPU cooler for your system. With the odd exception, the stock CPU cooler that comes with your AMD/Intel processor probably isn’t going to cut it, and in any case it’s always worth looking to upgrade if your system is struggling to stay cool under pressure.

What is a CPU Cooler?


The CPU cooler may consist of a heat sink (a component designed to lower the temperature of an electronic device by dissipating heat into the surrounding air) or combination of a heat sink and fan. These cooling systems are generally referred to as air cooling and are often used in conjunction with systems that are designed to improve airflow.


Another type of CPU cooling is called liquid cooling, where liquid circulates liquid through small pipes in a heat sink, drawing heat from the CPU to a dedicated radiator located on the system case or enclosure, where it is released into the ambient air outside of the system. The cooled liquid travels back through the system to the CPU to continue the process.

Top Picks for The Best CPU Coolers in 2021

Selecting the best CPU cooler for your PC build is an important decision.

Sure, stock coolers can do a good enough job in keeping the temperatures down but…

If you’re looking for overclocking potential, or less noise during load, you’ll need to invest in one of the best CPU coolers of 2021.

The best liquid CPU cooler

Corsair H115i RGB Platinum

Type: Liquid cooling | Compatibility: Intel 1366, 115x, 2011, 2066; AMD AM2, AM3, AM4, sTR4 | Fan speed: 360-2,200 RPM | Noise volume: 28-50 dBA | Dimensions: 280 x 120 x 30 mm | Weight: 1.8 lbs (830 g)

The format of the core that contains the pump and the RGB with the Corsair brand remains practically the same as that of its predecessors, but as in the Pro, they have decided to remove some of the wiring that bothered around the package, and have opted for adapt solutions that can be found in models like EVGA CLCs, for example.

Although the pump is controlled by a PWM socket, as a correspondence, in order to achieve variable speeds according to different performance needs, the lighting and customization part is connected to a mini-USB socket on the side opposite the pipes, that at the other end will end up occupying one of the 9-pin USB slots that the motherboards carry. Powering the block requires a third integrated cable that connects to one of the SATA cables coming from the source.



The best air cooler in 2021


Type: Fan and heatsink | Compatibility: Intel LGA 1150 – 2066; AMD AM2 – AM4, FM1 – FM2+ | Fan speed: 300-1500 RPM | Noise volume: Up to 24.6 dBA | Dimensions: 165 x 150 x 161 mm | Weight: 2.91 lbs (1.32 kg)

The design of the heatsink remains invariant in this case, consisting of a double tower system in which aluminum and copper with nickel-plated finishes have been used entirely to improve heat transfer.

The most different aspect in this case is that it is a completely black painted heatsink, something that is undoubtedly the novelty in a manufacturer that has always been characterized by the low content of extras in its designs.

These fans are the Noctua NF-A15 HS-PWM, a variant of the traditional NF-A15 PWM that now come completely painted in black.

They are still premium build fans optimized for large heatsinks with a design almost the same as normal variants. The measurements of these fans are 140 x 150 x 25 mm, although in essence they are 140 mm diameter fans.



Liquid cooling at an affordable price


Type: Liquid cooling | Compatibility: Intel LGA2066/2011/2011-v3/1150/1151/1155/1156/1366 AMD AM2-AM4, FM1-FM2, TR4 | Fan speed: 500-2400 RPM | Noise volume: 16-40 dBA | Dimensions: 276 x 122 x 53 mm | Weight: 1.8 lbs (820 g)

There aren’t many ways for cooling manufacturers to differentiate atop of a supplier’s product, like the Asetek Gen5 pumps, but you’d be surprised at how much goes into them behind the scenes.

NZXT was the first manufacturer permitted to build a fully custom and complex PCB for its RGB-illuminated Kraken coolers, followed-up in short order by EVGA, who dropped the price significantly for the same-size radiators. We’re reviewing the new EVGA CLC 240 today, following-up our previous (positive) CLC 280 and (negative) CLC 120 reviews.

Although they’re all ultimately Asetek products, the EVGA CLC series has thus far competed well with the NZXT Kraken and Corsair H-series coolers.

EVGA aimed to strike a balance between the higher-cost features of the Kraken coolers (like manufacturer-customized lighting) and the more function-focused Corsair H-series coolers. The effort yielded ~$130 280mm closed-loop liquid coolers, coming in below the $150-$160 Kraken X52/X62 units and around the H115i (presently $140).



All-in-one liquid cooling for the price of air

Corsair H60

Type: Liquid cooling | Compatibility: Intel 115x, 2011/2066; AMD AM2-AM4 | Fan speed: 600-1700 RPM | Noise volume: Up to 28.3 dBA | Dimensions: 157 x 120 x 52 mm | Weight: 1.32 lbs (600 g)

The perfect companion of this radiator will be the Corsair 120mm SP fan, which is included in the package, it is a top quality fan, with PWM technology that allows its rotation speed to be regulated according to the temperature of the processor.

This will make the balance between silence and cooling the best possible, because when we are doing very basic tasks the processor will not heat up, and the fan will rotate at a very low speed.

This fan can rotate at a speed between 600 RPM and 1,700 RPM, generating a noise of 28.3 dB (A) and an airflow of 57.2 CFM. Corsair 120mm SP is built with high-quality, low-friction bearings, which will make it last for many years.



Longtime king of budget air cooling

Cooler Master Hyper 212 EVO

Type: Fan and heatsink | Compatibility: Intel LGA 775 – 2066; AMD AM2 – AM3+, FM1 – FM3+, AM4 | Fan speed: 600-2000 RPM | Noise volume: 9-36 dBA | Dimensions: 120 x 79.7 x 158.5 mm | Weight: 1.3 lbs (590 g)

In the new V2 version of the Hyper 212 Evo we find interesting changes in its classic vertical tower design powered by heatpipes.

The design has been changed to asymmetric, tilting the heatpipes a few degrees “back” making more space for the RAM area of ​​the system.

Another improvement that we found over the previous generation is that the anchoring system has been changed to the same one that we saw recently in the Cooler Master MasterAir MA624 Stealth also from this same brand.

This new anchoring system is much friendlier for any modern and old socket, which makes it very fast and like its mounting on both Intel and AMD computers.



A giant radiator for extra-quiet cooling

Cooler Master MasterLiquid ML360R

Type: Liquid cooling | Compatibility: Intel LGA2066, LGA2011 v3, LGA2011, LGA1151, LGA1150, LGA1156, LGA1155, LGA1366, AMD AM4, AM3+, AM3, AM2+, AM2, FM2+, FM2, FM1 | Fan speed: 650-2000 RPM | Noise volume: 6-30 dBA | Dimensions: 394 x 119 x 27 mm | Weight: 5.6 lbs (2.56 kg)

Change is good. Change is constant. Change is inevitable. But at times, months or years can go by before a new product arrives to dethrone the previous incumbent juggernaut atop our component rankings. Many challenge, few succeed. 

The Cooler Master MasterLiquid ML360R RGB is one of those few. When it comes to keeping overclocked CPU load temperatures in check, it’s the new chilling champ. As the 360 variant of our previously reviewed MasterLiquid ML240R RGB, the newly available MasterLiquid ML360R adds 33 percent more radiator surface area for even more cooling prowess. 



Best Budget big air cooler

GamerStorm Deep Cool Assassin III

Type: Fan and Heatsink | Compatibility: AM2, AM2+, AM3, AM3+, AM4, FM1, FM2, FM2+, LGA 2011, LGA 1150, LGA 1151, LGA 1155, LGA 1366, LGA 2011-v3, LGA 2066 | Fan speed: 400-1400 RPM | Noise volume: 34.2 dBA | Dimensions: 165mm x 138mm x 25 mm | Weight: 3.2 lbs (1.45 kg)

Gamer Storm Assassin III in terms of design, in addition, it is impossible to avoid commenting on some differences with the previous generation Assassin II version.

This is a heatsink with a double tower configuration built entirely of aluminum and nickel-plated copper. The measurements that this set offers us without the fans installed are 135 mm wide, 138 mm deep and 165 mm high.



Very impressive and they didn't disappoint

NZXT Kraken Z-3

Type: Liquid cooling | Compatibility: Intel LGA2066, LGA2011 v3, LGA2011, LGA1151, LGA1150, LGA1156, LGA1155, LGA1366, AMD AM4, AM3+, AM3, AM2+, AM2, FM2+, FM2, FM1 | Fan speed: 650-2000 RPM | Noise volume: 6-30 dBA | Dimensions: 394 x 119 x 27 mm | Weight: 5.6 lbs (2.56 kg)

NZXT’s latest flagship Kraken Z73 AIO represents a new generation of liquid coolers from a company already known for its quality and striking visuals.

Armed with a trio of powerful fans and a new 7th- gen pump, this 360mm model makes a stunning visual statement with its active LCD face displaying a myriad of system statistics, like registered CPU and coolant temperatures or even customized logos, radiating forth from atop your CPU in pure digital bliss.

Priced at $279.99, the NZXT Kraken Z73 commands a premium for its digital LCD fireworks and a cooling performance punch that rivals the best AIOs — and even some custom cooling loops we’ve tested.

For those system builders who strive to reach the peak of thermal excellence and can’t get enough of that integrated, jaw-dropping LCD display, the Kraken Z73 is second to none.



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