Conclusion

Finding the right balance between cooling performance and noise is definitely a challenge. While traditional air-coolers continue to grow in size and weight to deal with this problem, Corsair fights it from a different angle with liquid. All of the Hydro Series coolers tested today are perfectly adequate at keeping our overclocked Sandy Bridge system cool. Picking a cooler that's right for you basically boils down to cooling performance, what noise level is acceptable, the price you're willing to pay, and compatibility. Corsair did a great job with these coolers in providing many different options to cover a variety of needs.

The H100 provides excellent cooling on the high setting at the expense of noise. This could potentially give you the extra cooling for when you need to crank up the clock speed to try and beat your friend’s score in the latest benchmark (or whatever it is you’re doing). Thanks to the built-in fan controller, you can choose medium or low speed for reduced noise on your day to day overclock. The only major downsides to the H100 are the limited amount of cases that are compatible, and of course, price.

With the H80, you get great cooling with the same ability to turn the fan speeds up or down depending on your needs. The performance penalty compared to the H100 is easily made up in case compatibility and price. With its push/pull design, even the H80 on low speed is a reasonable contender for most needs. You may be wondering why I mention price here when there's a mere $10 difference between the H80 and H100. Compatibility is probably the number one factor in deciding between the two; however, with sites like Newegg listing the H80 at $93.99, price difference becomes more considerable.

The H60 may not be the coolest kid on the block, but it is a good, cheaper alternative to the H80. The H60 doesn't come with a second fan for push/pull or have the built-in fan controller, but the price is much lower. For those with a limited budget and/or need for a cooler with a low foot print, the H60 might be up your alley. Keep in mind, the H60 is still adequate enough in cooling our overclocked test system.

One final area to discuss is how these liquid-coolers compare to a high-end air-cooler. We included the Thermalright Silver Arrow in our results, and it’s one of the best performing air-coolers on the market—with a price and size to match. In terms of performance and noise levels, the Silver Arrow is probably the best option out of the tested coolers. You can pick one up for around $75 online, which is only slightly more than the Corsair H60 and about $18 less than the Corsair H80; the Corsair H100 is the most expensive, but even then you’re only looking at around $100. What you get for the additional $15-$30 isn’t always better performance, but installation of the Corsair water block is substantially easier than that of the Silver Arrow—and that’s assuming you have a motherboard and case with sufficient clearance to begin with. There’s also the lingering question of whether it’s a good idea to have 1.2kg of weight hanging from your motherboard. Considering all of this, while coolers like the Silver Arrow can certainly be competitive, there’s still plenty of reason to consider Corsair’s Hydro series coolers.

Do any of these Corsair coolers give us the perfect balance of performance and noise? If one cooler stood out against the rest, it would have to be the H100. With its amazing cooling ability, built-in fan controller, and the option of adding two more fans for push/pull, I think Corsair has covered almost every possible situation with this one cooler. You get great cooling performance and low noise, though not at the same time. All of this greatness does come at a pretty steep price, leaving room for the H80 and H60. With high-end air-coolers delivering near-H100 performance at a lower price, it's definitely a hard sell, but the H100 still easily gets our recommendation as a more versatile cooling solution. Just remember to pair it up with an appropriate case.

Noise Results
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  • dagamer34 - Monday, November 7, 2011 - link

    Seems that even the lowly H60 is good enough that I should replace the stock fan in my HTPC.
  • **USA** - Monday, November 7, 2011 - link

    See: "Corsair H100 Install in 600T case" for effective cooling with push/pull fan configuration.
  • KingstonU - Monday, November 7, 2011 - link

    Great review! Been looking for a review to cover these exact topics on comparing pros/cons of high end air-coolers to mainstream water coolers. Thanks!

    I can see now that the only downside of the high-end air cooling solution compared to these is the weight off the motherboard, but has any motherboard actually failed under the load of one of these heavy air coolers? I supposed you could also just your case on it's side and problem solved.
  • Beenthere - Monday, November 7, 2011 - link

    The HSF back plate is there to distribute the load, so the mobo isn't over-stressed.
  • ajtyeh - Monday, November 7, 2011 - link

    any users that have done this? it looks like there may be room for 4 screws to attach an equivlant fan
  • Death666Angel - Monday, November 7, 2011 - link

    Yes, you can use an H60 with 2 fans, but since the radiator is still much more narrow you don't get the same results @ same fan rpm. :-)
  • noeldillabough - Monday, November 7, 2011 - link

    I know this must exist, is there a such thing as a case that is covered with fins with liquid channels? We could hook up our videocards and cpu to the loop.

    Then we'd only hear the noise of the pump; or am I mistaken? Seems like a no brainer but perhaps cost prohibitive.

    I've always been scared to do a water cooling system, because of leaks, but I don't see the advantage of this closed loop system quite yet. How reliable are current open loop systems and how much plumbing knowledge do i have to have to get it working safely? I'd love to use it on a dual cpu dual vdeocard setup (four blocks)
  • Beenthere - Monday, November 7, 2011 - link

    You can always build extreme H2O units but why bother when refrigeration systems are far superior and easy.
  • Mjello - Monday, November 7, 2011 - link

    I don't remember if it was zalaman who launched a commercial product a few years ago. But that was a tower exactly as you describe. Where the sides was cooling. And heatpipes attached to the sides from the cpu.

    Anyways. You can do that with h100 and a PII X4 3 Ghz stock speed. If you mount the radiator outside like I did. The temp goes up when you turn off my 900 rpm fan but the system isn't overheating. I'll just check the temps for you for fun ;). Give me half an hour
  • ggathagan - Monday, November 7, 2011 - link

    Yeah, Zalman produced two fanless cases (TNN-500 and TNN-300) that used heatpipes to conduct the heat from internal components to the case.

    That was different from what noeldillabough is talking about; where you are, in essence, making a case out of radiators.
    That would be too cost prohibitive and too complex, especially if you factor in the delicacy of such a case.
    Radiator fins and water channels have to be thin to be efficient, and that spells disaster without some sort of protection.
    Adding that protection to the outside of a case would add even more complexity and create a nightmare as far as being able to ship it without fear of damage.
    There's also the issue of weight to consider and we haven't even started on what customer support would be like.

    Zalman still makes the Reserator, which is an external cooling system along the lines of what you mentioned.

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