Best CPU Coolers of 2026: Tom’s Hardware Air and AIO Picks, Prices and Fit Checks

Air or AIO: the decision that comes first​

Tom's frames the choice simply. Air coolers need no radiator or fan-mounting decisions, which is why the guide pitches them as the cheaper, simpler route. AIOs are pitched at high-end CPUs where you want the most performance while keeping noise down.

The guide also warns against old assumptions:

• Large air coolers can eat case space and need vertical clearance above the motherboard. That can limit which cases you can use.
• Air coolers used to be louder and less efficient than liquid. The guide says that is no longer always true.
• Air coolers usually cost less. Some decent ones sell for under $30, and high-end ones reach toward or above $100.
• Case airflow still matters. The cooler the air hitting the heatsink or radiator, the lower your CPU temperatures.

The air cooler picks​

• Best for most people: Thermalright Peerless Assassin 120 SE. Tom's says it cooled a Core i9-12900K drawing over 200 W better than the competition it tested. It measured 34.5 dB at maximum fan speed and 33 dB at 50% speed. Note that this was an Intel 12th-generation test platform.
• Best big air cooler: Thermalright Royal Pretor 130. Tom's lists it at 130 × 112 × 158 mm with a 120 mm and a 130 mm fan. It supports Intel LGA 1851/1700/1200/115x and AMD AM5/AM4. Tom's says it typically sells for just above $50 in the U.S., and its own review lists a $52.90 MSRP. Tom's reported more than 259 W with a Core i7-14700K and more than 254 W with a Ryzen 9 9950X3D at 23°C ambient. Those are the outlet's test results, not a manufacturer rating. The guide itself says most people don't need this much cooler. The Peerless Assassin 120 SE is typically $15–$20 cheaper.
• Best mid-size: Scythe Mugen 6. It's the quiet, reasonably priced option. The guide says stronger options exist at similar prices but aren't as quiet.
• Best entry-level: Thermalright Assassin X 120 R SE. Tom's says not to overclock with it. It has a one-year warranty, shorter than most of its competition.
• Best fanless: Noctua NH-P1. It's silent and has a six-year warranty. It costs $119, and Tom's says that will be tough for many buyers. It mounts in only one direction on AMD systems, and Tom's flags GPU compatibility issues on AMD boards. You still need case fans to move warm air out.

The AIO picks​

• Best 360 mm: Arctic Liquid Freezer III Pro 360. Tom's calls it the best AIO it has tested for low CPU temperatures if you don't want RGB or a screen. It lists a $125 MSRP and says it was selling for $88 on Amazon at the time of writing. Tom's flags three catches: it is 63 mm thick with fans, its defaults are arguably overkill, and Intel installs need an included contact frame that complicates mounting.
• Best curved-screen AIO: Thermalright Wonder Vision 360 UB ARGB. It has a detachable 6.7-inch, 2,400 × 1,080 curved screen and a six-year warranty. Tom's says it handled more than 255 W with a Ryzen 9 9950X but peaked at 47 dBA when maxed out.
• Best budget screen AIO: MSI MPG Coreliquid P22 360. It has a 2.1-inch, 540 × 540 IPS display and sold for $99. With a Ryzen 9 9950X3D it ran less than 1°C warmer than the Silverstone IceMyst Pro. Tom's says the control software works but needs improvement.
• 360 mm alternative: Thermalright Grand Vision 360. It costs $129 and has an LCD. Tom's says its cooling is not drastically better than Be Quiet and NZXT rivals, but it costs less.
• Budget 360 mm: ID-Cooling FX360 INF. It costs about $80. Tom's measured a 44.4 dBA maximum and 40.9 dBA in a heavy gaming test.
• Multipurpose: Silverstone IceMyst 360. Optional $16 stackable fans on the block can cool VRMs, RAM or SSDs. At a matched 38.2 dBA, the 360 mm model dissipated 237 W and the 240 mm model 228 W. Default fan speeds are louder than needed, so set a custom fan curve.
• 280 mm: Lian Li Galahad II LCD 280. It costs $229. The non-LCD Galahad II models are $159.99 (360 mm) and $119.99 (240 mm).
• 240 mm: Lian Li Galahad II Trinity Performance 240. It costs $119.99, and Tom's says it's the best-cooling AIO of its size.
• 240 mm alternative: Cooler Master MasterLiquid 240 Atmos. It has a five-year warranty and rated lifespans of over 160,000 hours for the fans and 210,000 hours for the pump.
• 120 mm: Enermax LiqMaxFlo SR 120. It was around $80 and has a block-mounted fan that moves air over VRMs and RAM. Tom's notes that an air cooler usually beats a small 120 mm AIO on price and noise. These models make sense mainly in very compact cases.

Check the fit before you buy​

I checked one claim independently. Arctic's own product pages say the Liquid Freezer III Pro needs at least 63 mm of installation clearance. Arctic lists a 38 mm radiator, and a Vortez review also advises checking for 63 mm total clearance, counting radiator and fan thickness. That matches Tom's thickness warning.

Socket support is also narrower than a general "Intel" or "AMD" label suggests. Arctic's Liquid Freezer III Pro 360 supports Intel LGA 1851 and 1700 and AMD AM5 and AM4. Check the exact list for any cooler you're considering.

Before ordering:

1. Check the cooler height against your case's CPU-cooler clearance, including the side panel or window.
2. For big air coolers, check clearance against tall RAM and VRM heatsinks.
3. For AIOs, check the radiator's length and total thickness (fans included) at your intended mounting spot.
4. Check the exact socket support, including any retention hardware needed for your CPU.
5. Plan to set a custom fan curve in the BIOS or motherboard software for the AIOs Tom's says run loud by default.

Caveats on the guide​

The "2026" label doesn't mean every test was run this year. The guide pulls from reviews written at different times, on different CPUs: a Core i9-12900K for the Peerless Assassin, a Core i7-14700K and Ryzen 9 9950X3D for the Royal Pretor, and Core Ultra 9 285K and Core i7-14700K for the Grand Vision. Don't rank figures across those tests as if they were head-to-head.

Prices are snapshots, and Tom's discloses that links may earn affiliate commissions. The picks still come with attributed test observations and stated downsides. That makes this more useful than a bare deal list, but treat the prices as a starting point.

If you're building around a modern high-end CPU, the practical takeaway is straightforward. Measure your case, pick a cooler that fits, and tune the fan curve.