Cougar GX G1050 Noise

Sound Pressure Level
Load dB(A)
10% 18
20% 18
50% 19
80% 23
100% 30
110% 36

The Cougar is as silent as the OCZ at low loads, but it's louder at 100% and 110%. However, the GX series is still quieter than older designs with common Young Lin fans. It is nice to see less than 20dBA beneath 50% load.

Efficiency and PFC

230VAC, 50Hz
Load Efficiency PFC
10% 75% 0.886
20% 90% 0.934
50% 91% 0.974
80% 90% 0.985
100% 88% 0.988
110% 87% 0.995

 

115VAC, 60Hz
Load Efficiency PFC
10% 73% 0.979
20% 88% 0.978
50% 90% 0.993
80% 88% 0.995
100% 86% 0.996
110% 84% 0.996

With 89.79 % Cougar doesn't quite reach 80Plus Gold - unless you round up. Overall it does okay, and PFC is very high with both input voltages. The only real point of criticism is the low efficiency at 10% load (about 105W load); we'd recommend running high-end setups that idle at around 200W or more to get optimal efficiency from this PSU.

Cougar GX G1050 Regulation and Ripple Cooler Master Silent Pro Gold 1200W
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  • Marlin1975 - Thursday, December 9, 2010 - link

    How about more reviews on items that most would use, not a very small subset.

    I have a 600wat power supply and only bought that due to sale/coupon over the 500watt. My HTPC has a 380 etc...

    Test the PS's that are lowwer priced but still 80% rated and see if they really hold up for most builders.
  • Minion4Hire - Thursday, December 9, 2010 - link

    It has been a while since they did a large mid-range PSU roundup, but different people are in the market for different products.

    The thing is that the vast majority of mid-range power supplies ARE perfectly adequate for the vast majority of users in that market segment. Some are better, some are worse, but everything will generally come out okay. But if you're going to drop +$200 on a power supply it BETTER damn well perform! Of course if someone is looking to spend $20 on a 500W PSU for a gaming rig then they'll get what they're paying for.
  • Taft12 - Thursday, December 9, 2010 - link

    If modular is a requirement (and it should be for mid-range+) Seasonic M12II 520W or 620W is probably the best you can do in the $75-100 range.
  • michaelheath - Thursday, December 9, 2010 - link

    Minion, Taft, those are good responses but don't really address Martin's point: Why would I, a reasonable enthusiast who has a quad core CPU, a decent single GPU, a hard drive or two and a DVD burner, really care about what's going on in the 1000w+ PSU market? Other than pure curiosity? I need a 550w power supply at worst, and I too would like to see more reviews reflect the need of the majority of users. This article was interesting, but it's ultimately useless for ~95% of the readers viewing it.
  • MeanBruce - Friday, December 10, 2010 - link

    Useless is right!

    AnandTech for SSDs and Smartphones and Applegear.

    JonnyGuru.com for Power Supplies.

    Tom Logan at Overclock3D for cases, cooling, and motherboards.

    Experience is Everything!

    Experience is Everything!
  • poohbear - Sunday, December 12, 2010 - link

    Totally agree. Xmas is coming n we're all shopping, n they do a 1000wt psu review? This review is for da .01% of users out there, by da reviewers own admission, why even bother?
  • Martin Kaffei - Monday, December 13, 2010 - link

    3x 550
    http://www.anandtech.com/show/3985/three-550w-psus...

    1x 460
    http://www.anandtech.com/show/3962/seasonic-x460fl...

    1x 380
    http://www.anandtech.com/show/3902/antec-earthwatt...

    1x 300
    coming soon
  • RagingForces - Thursday, December 9, 2010 - link

    Thanks for the article. I am in the market for these type PSUs and am glad to see a roundup article. This is why I come to Anandtech :)
  • Vicey - Thursday, December 9, 2010 - link

    I'm surprised that the AX1200 by Corsair wasn't included as to be honest that is the only PSU in the 1200W range I'd consider buying.
  • dajeepster - Thursday, December 9, 2010 - link

    I'm surprised too... I have both the Corsair AX1200 and the OCZZ1000

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