I bought a used GTS460 on a forum I trusted for $95. It handles D3 maxed out on 1080. I don't remember the level of AA I used, probably 4x. (assuming D3 even allows AA. Been awhile since I've played and I was only in the config screen once after I bought it.) Toms review of the game showed the 5750 and 5770 (AKA the 6750 and 6770) were for some reason higher then the GTX460 so any of these cards should be more then enough.