Quote (Rapture @ 29 Jan 2015 01:33)
I agree with what people are saying on the technical level.
Your psu will not yield any benefit. The max you might need for a single card set up, is 650 Watts. getting more watts won't protect you from anything in the future or help you out unless you plan on getting 2 high power graphics cards.
I would still spend just a little more on the graphics. At least a 260 or a 260x.
from my understanding, if you double what your computer does at load, you create a more effecient machine (power supplies reach peak effeciency at ~50%)
fans generally kick in high gear post 50% as well.
So you could make an argument for overkill on a PSU, not on a $600 budget though.