So far this game is running like on my 680..
I'm hovering around 58 frames per second with several settings turned down a notch.. I have AA completely off, AO off, crowd details on medium, shaders on high. The game recommends medium textures for less than 3GB cards, but no difference in FPS or stuttering issues either way.
This game looks exactly the same on PC from last year, and with only really adjusting the AA I was closer to 90-100 FPS. Will probably delete, ain't worth the 64 GB's of space.