the 670 destroys pretty much every game at 1080, well apart from metro2033, but that game is just retarded. Also get one with an aftermarket cooler/ a reference 680 pcb ( either the giga windforce evga FTW or ASUS DirectCU II ones) Most of them will run as fast as a 680 out of the box. ( my giga came with a boost clock of 1158mhz instead of 1058,lol) With an good overclock they will take over a stock 680. It has to be said the overclocking is very hit an miss. I got lucky and am running at 1313mhz boost stable. But others havent been as lucky. Either way. You wont notice the performance difference between a 670 /80