Nvidia’s GTX 680 is its single fastest GPU, and (depending who you ask, who’s doing the binning and overclocking, and the state of the drivers at the moment) maybe the fastest consumer GPU on the market. Which factory-overclocked GTX 680 is the fairest of all? By a wide margin, OCN prefers the MSI Lightning for its unlocked voltages.
MSI GTX680 Lightning
"Voting for the MSI Lightning on this one, it's OC potential is unmatched."
EVGA GTX 680 Classified
"Going to give this one to EVGA. Can't beat their RMA support and a lifetime warranty is always going to win in my books."
ASUS GTX 680 DirectCU II
"I'm voting for the Asus as it's a little faster than the Lightning, and it's slightly quieter than the Lightning as well in the review I read on it."