Originally Posted by spokenfor
It might but I would say that you would probably be pushing the upper limits of that PSU and depending on the rest of your system and how much overclocking you do it could be a little bit to much on that PSU for the long term.
I have the same hx620 but I'm going for a single stock clocked 260. Reading some reviews gives me the notion that if I'm not using sli, then I should be fine.
I think. D: