Can you max out BF3? Probably.
Will you get 100FPS? Probably not.
Because of the new frostbite 3.0's eyegasmic graphical facelift, it might run about 20-30fps slower than the BFBC2 frostbite 1.5 engine on max settings (on top-notch gaming rigs) but still very playable.
Crysis and Crysis Warhead are still the ultimate nemesis of PC hardware, and if I can play it on it's highest settings (with the exception of AA) and get playable framerates, then BF3 shouldn't be a problem.