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Antec Kühler Vs. Corsair Hydro: Sealed Liquid CPU Coolers Compared

Antec Kühler H₂O 620

In a partnership announced way back in January, Antec delivers the latest versions of Asetek’s LCLC cooling technologies in a retail package. The H₂O 620 represents its most-basic single-fan 1.1”-thick radiator version, intended for the rear panel of most performance-oriented ATX cases. Hoses are kept short to facilitate this installation cleanly.

AMD and Intel mounting kits are both included, though the version we received did not yet include the new LGA 2011 mounting screws previously seen in our PNY liquid-cooled GeForce GTX 580-based build.

Different holes in the socket support plate fit LGA 775, 1156/1155, and 1366 mounting holes. Plastic inserts in the top plate achieve the same purpose, while AMD gets its own support plates.

Factory-applied thermal compound covers the center of a finely machined copper cold plate beneath the H₂O 620’s pump. Tabs surrounding the pump body allow it to be installed in nearly any orientation.

A thin profile provides optimal installation space around the Kühler H₂O 620, even allowing access to our motherboard’s eight-pin EPS12V power connector. A lead on the pump facilitates automatic fan speed control, but this low-cost unit does not allow users to set a target temperature. Overclockers can achieve their best results by instead connecting the fan to a motherboard fan header.

  • compton
    You would have a hard time convincing me that my Noctua NH-U12P SE2 was anything but quiet and effective, but I know that many prefer sealed water solutions. My opinion is that for 1155 SB processors, even overclocked ones, you're better off with a high end air cooler.
    Reply
  • soccerdocks
    comptonYou would have a hard time convincing me that my Noctua NH-U12P SE2 was anything but quiet and effective, but I know that many prefer sealed water solutions. My opinion is that for 1155 SB processors, even overclocked ones, you're better off with a high end air cooler.
    I completely agree. Pretty much the only reason to go with these sealed water coolers is to say that you water cooled your PC.
    Reply
  • gmcizzle
    Yes for SB processors, air is fine because they don't really get that hot. Now SBE, on the other hand, gets extremely hot and you need the best cooling you can get.
    Reply
  • cmcghee358
    soccerdocksI completely agree. Pretty much the only reason to go with these sealed water coolers is to say that you water cooled your PC.
    I agree 100%. And I do, in fact have an H70. And when I'm at work describing the epic beast of computers I build, and I show off some pics of mine; I always point to the H70 and go "Theres the radiator for the water cooler" /gasp!
    Reply
  • joytech22
    I still have my H50 so reading this bummed me out a little. Haha.
    Reply
  • drumsrule786
    High end air is probably better than most sealed liquid coolers except for the H100. My H50 is alright but not nearly as good as I thought it was going to be when I first got it. Next build im definitely gonna go full custom water cooling though :D
    Reply
  • aznshinobi
    These coolers are terrible cooling/value, it's sad that consumers see "Water-cooling" (IMO this is "fake" water cooling in that it's all in a closed loop) and they think it'll cool the best. However the temps speak for itself, a $50 air cooler can practically, if not beat, a $80 closed-loop WC solution with the dBA being similar. Sad.
    Reply
  • Lutfij
    did anyone else notice that the author as well as manufacturer's of these pseudo WC loops rerfer to the cpu contact plate as a cold plate...last time i checked a cold plate is what is used in a Peltier unit...:/
    Reply
  • compton
    cmcghee358I agree 100%. And I do, in fact have an H70. And when I'm at work describing the epic beast of computers I build, and I show off some pics of mine; I always point to the H70 and go "Theres the radiator for the water cooler" /gasp!
    I think that's a perfectly good reason to buy any product. I like that I have a choice. But Noctua's tower coolers look pretty sexy too.
    Reply
  • Darkerson
    Was thinking about getting the 620 for a future SB/IB build, but now Im not so sure. Anyway, thanks for the reviews!
    Reply