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Back in September 2009, we reviewed Corsair’s H50 all-in-one liquid cooler and awarded it a 9 verdict and a Kick Ass award for its cooling prowess, which put it roughly on par with our then-champion air cooler, the Thermalright U-120 Extreme. But times change and the competition eventually caught up. Corsair apparently hasn’t been asleep, though. The company’s new H70 ups the ante in all-in-one liquid coolers.
The Corsair H70, like the H50 before it, was designed in conjunction with Asetek, the all-in-one liquid-cooling OEM. For the H70, the team nearly doubled the thickness of the 12cm radiator, added a second 12cm fan for the coveted push/pull airflow, and slimmed down the pump/heat-exchange unit that rests on the CPU. The H70 also shipped with a pair of voltage-regulator cables, one for each fan, in an effort to reduce noise. Like others of its ilk, the H70’s fans and radiator mount in place of your case’s 12cm rear exhaust fan, although Corsair recommends you mount the H70’s fans as exhaust rather than intake (as with the H50).
Alongside the H70 (with and without the regulator cables), we tested the H50 in single-fan mode, the Hyper 212+, and of course, the stock air-cooler that came with our new test bed’s CPU. Thanks to the overclock, our new test bed runs much hotter than our old one—at full burn, the stock cooler could only get the CPU down to 89 C. As they did on the old test bed, the H50 and Hyper 212+ performed within a few degrees of each other, keeping the CPU at full burn nearly 32 degrees cooler than the stock heatsink. The H70 brought full-burn temps down to 51 C—five to six degrees cooler than either. With the noise-regulating cables in place, temps were 2 C higher—still very impressive.
The Corsair H70 is a great all-in-one liquid cooler, though its two fans put out a lot more noise than the H50’s—the regulator cables help a little bit. At $110 street, it’s $30 more than the H50 and its competitors, and $80 more than the Hyper 212+. But every degree counts, right?
Powerful cooling performance; push/pull fans help.
Loud fans; a bit pricey.
|Corsair H70 (two fans)||Corsair H50 (one fan) ||CM Hyper 212+ ||Stock Cooler|
|Idle (C)||33.25 ||34.25||33.75 ||45.75|
|100% Burn (C)||51.25||56.5||57.5||89.25|