Of 68 coolers that ship LGA1200 hardware, the Thermalright Frozen Notte 360 ARGB V2 ranks first: it keeps 20 of 20 LGA1200 processors in the Excellent band, up to the Core i5-11600K at 251 W, for $55.39 on Amazon. Rankings weigh coverage of the socket's processors against price, so cheaper coolers that cool the same chips rank higher.
LGA1200 is the socket for Intel’s 10th and 11th Gen Core desktop chips, 20 of them in our database. This page ranks every cooler that ships with LGA1200 mounting hardware by its headroom on the hungriest of them, the Core i5-11600K at 251 W, so any cooler that passes here handles the rest of the socket too.
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Top three overall
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29 all-in-one liquid coolers in our database ship LGA1200 hardware, with radiators from 120 to 420 mm. The top-ranked is the Thermalright Frozen Notte 360 ARGB V2, rated 320 W sustained: 69 W of headroom on the Core i5-11600K. The table ranks them all.
The cooler's sustained dissipation rating minus the CPU's boost power limit, in watts. Positive headroom lets fans run slower and quieter; 25 W or more is rated Excellent here.
Intel's two power limits. PL1 (Processor Base Power) is the sustained draw the CPU settles at; PL2 (Maximum Turbo Power) is the short-term boost ceiling. Many desktop boards run PL2 indefinitely, so a cooler must be sized for PL2, not PL1.
The maximum junction temperature the maker allows, typically 95–100 °C. AMD lists 90 °C for the Ryzen 7 5800X3D, 89 °C for the 7800X3D and 95 °C for the 9800X3D. At TjMax the CPU throttles clocks to stay in place; it will not overheat, but it will lose performance.
The tallest memory module that fits under an air cooler's front fan in its stock position. Dual-tower coolers with less than 42 mm clash with tall RGB kits (typically 44 mm) unless the fan is raised.