I'm not sure it will be. The PC version was/is still riddled with huge performance issues due to the fact that they had to cater for varying levels of technology. Even on low it still ran like a dog on mid range PCs. Correct me if I'm wrong but this is the first console project Crytek have done, so it'll be interesting to see how their development team adapts. Hopefully a sinle set of specifications will make things simpler and result in a solid, great looking game.
I dubt ti will make much differene at all, the fundamental limitations of the console are still apparent.