Crysis 3 was the only game that brought my clocked 7970 to its knees at Ultra settings. All the other games could be run easily and smoothly at 1440p at Ultra settings. FXAA was all that was needed, though in some games you could get away with x2AA. 7970/50 clocked is ideal for decent but cheap performance @ 1440p/1600p imo.
Exactly. 2560x1440 res was not suddenly made playable when the GTX780 was released with its magical ~17% performance increase.
30 FPS becoming 34 FPS does not = game changing. GTX780 still has to compromise at that resolution.