Yeah, the first stage actually IS the most demanding.For those of you who have finished it, did the performance get much worse than the first stage or did it more or less stay at that level throughout?
I switched from a 580 to a 680 and tested it on both and neither one could maintain a smooth framerate at Very High. The 680 allowed all details except for shading to be at Very High, however, but that's with a limit of 30 fps. Heck, that one room right before you get the bow STILL bogged down. I can't believe how demanding it is.
I'd love to play the game at 60 fps but it just doesn't seem possible without turning everything to low (and even then there are dips). Still, it definitely starts to run smoother as you move out into the more open spaces (oddly enough). The areas where the game is most demanding are often surprising. I'm stuck with SMAA. I actually LOVE TXAA (screw the haters), but it hurts performance enough to make it difficult to use.
I tried to match those downsampled "bullshots" posted in the other thread and was met with ~15 fps.