is a tx750m psu enough?

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liamjmullen

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Aug 30, 2013
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Looking to get either 2 7970's or 2 680's and was just wondering if my 750w psu would be enough to fully power them both. P.s i have an i5 3570k.
 
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clutchc

clutchc

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Apr 22, 2009
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The HD 7970s would be the most draw on the PSU.
http://www.hwcompare.com/12351/geforce-gtx-680-vs-radeon-hd-7970/
Each HD 7970 is a 250W card maxed out. That's about 21A on the +12V rail. The CPU is a 77W/6.4A load at +12V. But with the high quality Corsair's 62A/744W +12V rail, I see no problem. Even with overclocking.

If you want to verify, use a PSU calculator so you can enter the rest of your system: http://www.extreme.outervision.com/psucalculatorlite.jsp
 
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liamjmullen

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Aug 30, 2013
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Thanks so much that was a great help
 
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