Hey guys, I was wondering which psu would be better for a system that has two radeon hd6950's (unlocked shaders and overclocked to 6970) in crossfire setup and a i5-2500k cpu with a moderate overclock.
XFX Black Edition P1-750B-CAG9 750W ATX12V v2.2 / ESP12V v2.91 SLI Ready CrossFire Ready 80 PLUS SILVER Certified Modular Active PFC Power Supply
Uther I heard its not about total wattage. It's about the amount of amps put out by the 12v rail. For instance some 750 w psus are worse than 650w psus and some 500w psus are worse than 450w psus.
I could be wrong though. Please correct me if I am.
You are correct in that not all power supplies are equal and it is about 12v amps. However I think you are pushing it trying to Crossfire unlocked 6950s with 650 watts. I would recommend a 750w unit. That XFX unit that Uther linked to is a great choice.
Different thread, but once again...
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