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crossfire 7970s power consumption- kill a watt

post #1 of 29
Thread Starter 
Can anyone with a kill a watt meter and crossfire 7970s at an overclock of around 1175-1200mhz tell me what kind of power draw they get in games, im looking to trade my 680s and I need to know if I need a different power supply, any help would be appreciated, thanks!
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post #2 of 29
This is with a 3960x processor at stock clocks with 2 7970's at stock clocks.

Even with overclocks on the CPU and graphics cards you would probably be okay with a good quality 750W PSU. Especially as the 3960X is alot more power hungry than your 3770K.
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post #3 of 29
You woud be at around 550w under heavy gaming with OC'ed 7970 CF and your current CPU and speed.
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post #4 of 29
Thread Starter 
That sounds low, my buddy with 2 7970s heavily overclocked and a 2600k@4.8 1.44v pulled over 920 watts during 3d Mark 11, he also has gpus/cpu watercooled...not sure how much power his pumps and all his fans consume though
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post #5 of 29
Over 920W?

250W each for the GPU (or so) and 150W or so for the CPU, plus say another 200W for everything else, is only 600W. How did he manage 920? Or is that from the wall.
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post #6 of 29
What do you want me to test for you? I need 1.175v for 1200Mhz which is stock Voltage for me.
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post #7 of 29
Thread Starter 
Quote:
Originally Posted by snipekill2445 View Post

Over 920W?

250W each for the GPU (or so) and 150W or so for the CPU, plus say another 200W for everything else, is only 600W. How did he manage 920? Or is that from the wall.
wouldn't that be 250+250+150+200 =800? And that was from the wall yes
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post #8 of 29
Oh right my bad doh.gif
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post #9 of 29
550W with HD 7970 @ 1.175v, 1.150v @ 1125Mhz.
3570K @ 4.6Ghz @ 1.35v
3DMARK11
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post #10 of 29
Quote:
Originally Posted by y2kcamaross View Post

That sounds low, my buddy with 2 7970s heavily overclocked and a 2600k@4.8 1.44v pulled over 920 watts during 3d Mark 11, he also has gpus/cpu watercooled...not sure how much power his pumps and all his fans consume though

No, 550w + sounds about right during gaming. (Depends on other components and configuration.
The parts don't run at their rated W unless at peak/full load.
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