Most games I can max. But I started playing the hunter. 90% of time I get 40 to 60fps, but in especially dense areas of forest, I get 20fps. Battlefield 3 on max is a bit dodgey often too.
No chance at maxing Shogun 2 in a huge battle either. Project CARS runs like crap on max too. But that is only in Alpha, so it isn't optimized to be fair. Mafia 2 on max with physx on can slow down a bit sometimes too. X-Plane 10 consumes all my VRAM no problem, as does IL Sturmovik: Cliffs of Dover. GTA4 runs great on stock, but struggles with high res texture mods.
Also you gotta think ahead
560Ti is really not going to be any good 12 to 24months down the line. GTX680 will
Still not decided though, want to look at more monitors.