Originally Posted by G woodlogger;11958144
I saw on you tube that running I7 oc, 480 sli and a demanding game used 668 w, so it should only be a problem running test programs.
I guess it depends on which CPU is in the rig. On NewEgg two GTX 480's require 951 watts. On Cyberpower 850 watts.
They take the CPU, motherboard, video card, memory on GPU, and hard drive into consideration. Otherwise you may not be pushing to full FPS on those cards if your under what you really need even though it's working I imagine.
That's with Intel Core i7, regular motherboard (not high end), 1GB or ram on video card, DVD-RW, 7200RPM HDD. Not including any case, cpu, or ram fans but that's minimal.
To run two AMD 6870's NewEgg says 694 watts and Cyberpower says 750 watts.
To run two GTX 460's NewEgg says 717 watts and Cyberpower says 750 watts.
Those figures are on the reference cards not overclocking them yourself or the already overclocked ones out of the box with voltage tweaks.