Cooling Results

The Cooler Master Hyper 6+ is not the most effective air cooler we have tested. That distinction still is held by the Tuniq Tower 120. However the Hyper 6+ is very close to the performance level of the Tuniq, and it definitely belongs in the comparison of top heatpipe towers.


Where the very good Intel stock cooler keeps the X6800 at 41C at idle, the Hyper 6+ can manage 31C. This is not quite as cool as the Tuniq Tower 120 at stock idle, but it is significantly better than the stock Intel cooler. As processor speed increases the delta between the Tuniq and Hyper 6+ increases slightly, so that at 3.83 GHz the Tuniq is 36C and the Hyper 6+ is 44C. The larger 120mm fan on the Tuniq, coupled with the mid cooler fan mount, seems to make the performance difference.

As the processor is pushed to its highest stable overclock using the retail HSF, the delta between the Hyper 6+ and the Intel retail increases. At 3.73GHz the retail HSF is running at 56C, compared to 43C with the Cooler Master. The Hyper 6+ and Tuniq Tower 120 perform similarly at idle speeds across the operating speeds they can achieve, with the Tuniq about 4C to 5C cooler at all speeds. The Hyper 6+ also reaches much higher than the Intel stock fan, reaching 3.87 GHz overclock - only 30 MHz behind the leading Tuniq Tower 120.

It is easy to measure the effectiveness of a cooling solution at idle - when the computer is doing nothing except running the temperature measurement program. It is more difficult, however, to effectively simulate a computer being stressed by all of the conditions it might be exposed to in different operating environments. For most home users CPU power is most taxed with contemporary gaming. Therefore our stress test simulates running a demanding contemporary game.

The Far Cry River demo is looped for 30 minutes and the CPU temperature is captured at 4 second intervals with the NVIDIA monitor "logging" option. The highest temperature during the stress test is then reported. Cooling efficiency of the Cooler Master Hyper 6+ under stress conditions was compared to the retail HSF and other recently tested CPU coolers. Once again the well-regarded Tuniq Tower 120 was the top air cooling solution, with the TEC/air hybrid Monsoon II Lite as the top performer. The Cooler master Hyper 6+ was just behind the Tuniq at the top of the air cooling chart.


The Tuniq keeps the CPU at 34C under stress at stock speeds, where the Hyper 6+ manages 41C. By 3.83 GHz the Tuniq is at 50C compared to the Cooler Master at 59C. Only the TEC/air hybrid Monsoon II was able to reach 3.96 GHz with this processor, but the Tuniq reached an air cooling record of 3.9 GHz, with the Hyper 6+ just behind at 3.87GHz.

As stated many times, the overclocking abilities of the CPU will vary at the top, depending on the CPU. This particular CPU does higher FSB speeds than any X6800 we have tested, but the 3.9GHz top speed with the Tuniq is pretty average among the X6800 processors we have tested with Tuniq cooling. A few of the other processors tested with the best air coolers reach just over 4 GHz, but the range has been 3.8 to 4.0GHz. Stock cooling generally tops out 200 to 400 MHz lower, depending on the CPU, on the processors tested in our lab. The 3.87 GHz with the Hyper 6+ places the Cooler Master performance in the top range of air cooling.

Test Configuration and Noise Overclocking
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  • Casper42 - Friday, April 6, 2007 - link

    I bought 2 of these for a Dual Opteron setup back in September of 2005!!!

    What the hell took you guys so long to review them?


    PS: For the haters that keep harping on the 100mm fan, you could make a 100 to 120 adapter out of a peice of sheet metal and a few power tools. If your so l334 that you have to have the super special $25 uber quiet 120mm fan, show your skills and make your own adapter.
    Hell that gives me an idea. My father in law has a Digital Plasma Cutter, he could probably work out plans for such an adapter in a matter of a few hours and then crank them out from sheet alumn.
  • schlumpfi106 - Thursday, February 15, 2007 - link

    quote:

    The only small complaint we have is that the excellent fan included in the kit is a non-standard 100mm


    Why is that a small complaint? It makes this cooler absolutely useless in my eyes. Not worth testing.
  • Missing Ghost - Saturday, February 17, 2007 - link

    It's still better than integrated fans as found on many Zalman coolers.
  • Macuser89 - Monday, February 19, 2007 - link

    Why is an integrated or abnormal fan size bad. unless you want to change the fan for some reason, I can't think of anything.
  • flipmode - Thursday, February 15, 2007 - link

    quote:

    The Tuniq Tower 120 is still the best air cooler tested so far at AnandTech
    FWIW, I would really like to see you guys test the Scythe Ninja. It should nip at the heels of the Tuniq, has a decent mounting system, a quiet fan, a good price, and wide availability.
  • flipmode - Thursday, February 15, 2007 - link

    quote:

    This includes the serrated fin design which significantly increases the surface area of the fins.
    That's silly, plain silly. Take you eyeball and point it at those serrations. Now, do you see a significant increase of surface area there? No - The "teeth" are a few millimeters square at best. A more plausible explanation is that they are there to reduce static pressure. The method has been used on other heatsinks - The Thermalright Ultra-120 and the Tuniq Tower for instance, but the serrated profile of this Coolermaster departs significantly from the profiles of the other two - so I wonder if my theory is correct or if the serrations exist for a completely different reason. But I'm quite comfortable asserting that they're not intended to increase surface area.
  • stelleg151 - Wednesday, February 14, 2007 - link

    my vote is to start using the QX6700 for OC testing, more heat
  • Macuser89 - Thursday, February 15, 2007 - link

    too much work... they have more data to compare with x6800.
  • Gigahertz19 - Wednesday, February 14, 2007 - link

    Jarred, Wesley

    You guys should included the Thermaltake Typhoon VX in a future HSF review. It hasn't been out that long but is suppose to be one of the quietest coolers with awesome cooling. I remember reading its performance is very similar to the Zalman 9700 but the Typhoon VX can produce the same results yet remain much quieter.
  • Macuser89 - Wednesday, February 14, 2007 - link

    Which is better, Copper or Aluminum for a heat sync? I would think Copper, but some say otherwise. And if Copper is better then wouldn't the Tuniq be better yet if they used copper fins as well.

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