R9 280x crossfire questions???????

James Layne

Honorable
Oct 17, 2013
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I currently built another computer with a intel 4670k i5 clocked at 4.4 and a saphire vapor-x R9 280x. First question: I was wondering if my PSU would provide enough power for crossfire? Second question: Can I buy a different brand of R9 280x for crossfire? I am looking at getting an ASUS variant. Third question: If I am in crossfire and overclocking my CPU at 4.4 (1.21v input) will I still have enough power with the below specified PSU?

XFX PRO850W Core Edition Power Supply Bronze 80
http://www.amazon.com/XFX-PRO850W-Edition-Certified-P1850SNLB9/dp/B0045L4BNW/ref=sr_1_2?ie=UTF8&qid=1385237419&sr=8-2&keywords=xfx+850