Four More Closed-Loop Liquid Coolers Take On The NH-D14

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With big radiators and no vents, closed-loop coolers give us a taste of liquid-cooling’s benefits, sans the risk. While less punishing on the motherboard than big air, can any closed-loop liquid cooler beat Noctua's famed NH-D14 in thermal performance?

Installing NZXT's Kraken X40

The X40 uses the same lock ring as Corsair’s H90 and the previously-reviewed Zalman LQ320 to hold its mounting bracket in position, engaging tabs on the pump body.

Since the Kraken X40 mounts in place of our original 140 mm exhaust fan, we once again repositioned the case’s original fan on the top panel.

Tanks on the radiator’s top and bottom extend past the fan, covering the top slot position of most cases. Understanding the importance of exhaust, NZXT’s installation manual shows the fan pulling air from inside the case through the radiator and out the back.

Like the Corsair H90, the Kraken's tanks extend past the fan mount to block the top slot of most "compatible" cases. Most systems have an unused PCIe x1 slot here or no slot at all, but this will create a fitment issue for anyone who plans to use the top expansion slot.

Thomas Soderstrom
Thomas Soderstrom
Thomas Soderstrom is a Senior Staff Editor at Tom's Hardware US. He tests and reviews cases, cooling, memory and motherboards.
69 Comments Comment from the forums
  • dudewitbow
    Would have liked more review sites to pick up testing swiftechs h220.
    Reply
  • amuffin
    So the Water 2.0, Kraken, and H90 can only beat the NH-D14 by a few degrees....let's look at those joyful noise comparisons!
    http://www.tomshardware.com/reviews/water2.0-extreme-kraken-x40-hydro-h90-elc120,3434-13.html

    Doesn't really justify buying one of these over an NH-D14, really only to say that you have "water cooling."
    Reply
  • s3anister
    amuffinSo the Water 2.0, Kraken, and H90 can only beat the NH-D14 by a few degrees....let's look at those joyful noise comparisons!http://www.tomshardware.com/review 34-13.htmlDoesn't really justify buying one of these over an NH-D14, really only to say that you have "water cooling."The justification of buying a closed-loop water cooler (at least for me) was getting the weight of a massive air-cooler off my CPU and therefore removing the stress of that weight from the motherboard. Slightly better temps are just a bonus.
    Reply
  • acktionhank
    amuffinSo the Water 2.0, Kraken, and H90 can only beat the NH-D14 by a few degrees....let's look at those joyful noise comparisons!http://www.tomshardware.com/review 34-13.htmlDoesn't really justify buying one of these over an NH-D14, really only to say that you have "water cooling."
    I've had my Noctua D14 for almost two years now. It's one of the best investments I've made in my PC. If i needed better cooling, i would just buy a third fan for the D14, and it would drop a few degree's and give better cooling than all but the top to Closed-loop coolers tested here. Plus I'd have lower noise.

    If room is not a problem there is NO reason to get a closed-loop system. A D14 with a third fan is $100 and is out performed only in thermals by more expensive and louder CL coolers.
    Reply
  • acktionhank
    s3anisterThe justification of buying a closed-loop water cooler (at least for me) was getting the weight of a massive air-cooler off my CPU and therefore removing the stress of that weight from the motherboard. Slightly better temps are just a bonus.
    I understand the issue of weight. But saving 2-3 degree's on cpu (aside from the TT 2.0) isn't worth your mobo gaining 15-17 degree's which results in a much hotter system and more stress on all your other components.
    Reply
  • echondo
    Why did they include a dual fan CLC in the testing with other single fan CLC and an air cooler?

    Theoretically, the more cooling the space, the more efficient.

    You should have compared air coolers to other air coolers, then compared single fan 120mm and 140mm CLC with other single fan CLC and then do a dual fan CLC vs. other dual fan CLC.

    I mean, come on, I'm glad you reviewed this, but you should have at least took the best air cooler, single fan CLC, and dual fan CLC in the current market and then tested and compared results.
    Reply
  • s3anister
    acktionhankI understand the issue of weight. But saving 2-3 degree's on cpu (aside from the TT 2.0) isn't worth your mobo gaining 15-17 degree's which results in a much hotter system and more stress on all your other components.That depends entirely on how airflow is within your case and as such temps vary widely between cases and setup. Believe me when I say that VRM temps are not an issue in my Define XL R2.
    Reply
  • Crashman
    echondoWhy did they include a dual fan CLC in the testing with other single fan CLC and an air cooler?It's "run what you brung", these were the leftovers from the first test.
    Reply
  • hero1
    Nice review. DH 14 sure does brawl with the best. My H80i came with such loud fans that I had to replace them with 2x Scythe GT 1850RPM which are much quieter and also made a nice drop in my load temps. However, I will be selling my H80i with it's stock fans since I am moving to complete custome water cooling build in a week or so. For those who want bang for buck, Noctua NH-D14 is the way to go.
    Reply
  • Luay
    If the double-heatsink NH-D14's size is a problem, the NH-U12P is single heatsink, and is only one or two degrees hotter than its big brother.

    I'm surprised why Noctua hasn't included their newest fans in their coolers. I'm sure its holding many potential customers off.
    Reply