johnlewis804 :
Novuake :
The 8120 is a little on the slow side when it comes to single threaded performance. Its not really a bottleneck, but you will not get optimal performance out of the GTX680.
Anyway. Where are you getting the GTX680?
Its overpriced and the GTX770(faster than GTX680 and cheaper) or even GTX760 is a better option from a value perspective.
i got the GTX 680 from newegg for 419$ its better then the GTX760 and i didn't want to get the GTX 770 because the Minimum power requirement is 600 watts for that card.
The GTX770 actually uses less power than the GTX680. So you already have the card?
Well since you do, put it in anyway. Should be perfectly fine.