Originally Posted by Majin SSJ Eric
Ok, so I am fairly set on upgrading my 560's to 2x GTX 580 Lightnings. The consensus here is that my Corsair HX750 should be enough? According to Guru3d the Lightnings draw 232W total under load so:
GTX 580 Lightning draw (load) - 232 x 2 = 464W
Total system draw minus gpu (load) - 250W
Total - 714W
Does that look right? I know its on the edge but I'm thinking my PSU can handle that (not like its going to be under full load constantly).....
It will handle it but SLI does not mean x2 power draw.
You should be going close to ~725w on 100% load (Prime95 + Furmark) Everyday gaming will be fine at closer to 650w