Sufficient PSU for Crossfire 7970's

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Zero Cool

Zero Cool

Distinguished
Sep 2, 2013
259
0
18,960


With 64A on the 12v rail, that PSU is an awesome match for 2 7970's. It also gives you some extra headroom if you decide you want to overclock them!
 
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steamywildwood

steamywildwood

Honorable
Dec 11, 2012
57
0
10,630


Are you sure? I've had a friend tell me its not up to snuff, I figured I'd let the experts let me know what the verdict is.
 
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T

tomuchfun

Honorable
Aug 18, 2013
35
0
10,530



Also look at corsair or seasonic, there psu's are very well made.

 
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Zero Cool

Zero Cool

Distinguished
Sep 2, 2013
259
0
18,960


Check out this chart. Even running Furmark the system is only drawing 641w with 2 7970's and an i7-3960x. While gaming they were at 489w. Your power supply will work great. (They were using a 850w PSU for this chart as well)

power-consumption.jpg

 
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iam2thecrowe

iam2thecrowe

Glorious
Jul 4, 2010
10,591
21
44,965
yes no problem. hopefully AMD continue to improve their drivers for crossfire, although im sure the next gen cards will make a more significant improvement on frame time variance ;) ......... (if it were my rig i'd wait for next gen amd cards for crossfire). But if you just cant wait.....then go for it....
 
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