Sorry, but none of those game consoles can ever match the power of the GeForce 4 Ti 4600. And plus, game consoles aren't upgradable.
This is the most uneducated thing I've heard. First off, RIGHT NOW, the best graphics available, IMO, belong to the new Resident Evil. Resident Evil can be played on a system that costs $150. A GeForce 4600 costs $315, just for the video card!! Not counting anything else. Then you bring up that you are just stating this without the idea of cost. Well then, the SG workstations can whoop your 4600.