Topic Title: Cross Fire 7990 Question
Topic Summary: Power Supply Question
Created On: 09/05/2013 11:33 PM
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 09/05/2013 11:33 PM
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So, I'm building a new computer, and the wattage on the two cards are 750w Each. My power supply that I just bought is a 1000w, is that going to be enough to power my cards, or do I need to return the power supply for a higher wattage? 

Thanks for your help!

 09/06/2013 08:59 AM
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Whoever told you a 7990 pulls 750w is a moron. The HD 7990 pulls 375w at stock, or 750w for a pair. Add on 150w for the rest of your system and you still come in under 1000w. However I would suggest you return it and get a 1200w for some overclocking headroom, which you will need since most games will not use all 4 GPUs.

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