I play the game in 3D Vision with two 460s. Never had GPU specific problems in any game. Having 3D on doesn't really cut FPS in half, I usually notice a 10-20% drop in FPS. But I am running two cards. With a single 460 I can run the game at 1920x1080 with high settings and 3D on at an average of 30FPS.

But you do have to have an Nvidia card and the 3D vision kit to get the kind of experience I think you're looking for. You're display also needs to be supported by Nvidia. Not sure if your TV is.

http://www.nvidia.com/object/3d-visi...uirements.html