best performance best overclockable and most quiet are gigabyte gtx 780 ghz edition, evga gtx 780 classified and msi gtx 780 lightning there was a review that was comparing those 3 top gtx 780 cards and they gave the best nominee to gigabyte gtx 780 ghz edition and evga gtx 780 classified so you won't go wrong whichever you pick here is the review if you want to read...http://us.hardware.info/reviews/5002/three-super-fast-gtx-780s-evgas-classified-gigabytes-ghz-edition-and-msis-lightning