actually its the cell processors that allow it to do do enormous amounts of vector processing with the PPC as the unit that dispenses the data. The NV video is really only a modified 7 series card. A little info on it http://en.wikipedia.org/wiki/Cell_(microprocessor)
Would of thought depends on how you program it after all a gpu is a chip designed to move memory about and modify it by logic at break neck speeds very useful if ya a cunning programmer working with huge amounts of numbers.
ive been debating this too. im goin for the 360 and keeping our ps2. sort of teh best of both worlds. i only want it play RE5 really :tongue: