shocklink is completely wrong. 32 bit or 64 bit does not effect processing speed in any way.
Yes it does. Not necessarily double the speed but anything designed to take advantage of the wider bus widths will see a performance gain over a 32bit implementation.
and it's not called "86 bit". it's called 32 bit. 32 bit = x86, 64 bit = x64. i don't know why 32 bit isnt x32 but whatever.
x86 is the 32 bit processor instruction set name and x86-64 is the 64 bit extension.
The Xbox 360 has the equivalent GPU power of a desktop Geforce 7600 (or something in that range) and the PS3 isn't much better. The Xbox 360 is six years old at this point, besides a few minor upgrades over time the hardware is mostly the same level as it was at launch. Consoles can't be equiped with state of the art hardware because they wouldn't be able to be sold at a comfortable price point.
That said, I'll probably get this game for the PS3 at some point if it hasn't been released on the PC yet.