Problem is, if you allocate 5 SPUs in a PS3 to run pixel shaders, you won't have much left for anything else. That's a nice article coming from Sony, basically bosting the Cell (hey, all we researchers have to boost our stuff, even if we don't have a money stance in it, so why not Sony?)
It still makes a hell of a lot more sense to run logic (and most AI) on the PPE, geometry and physics on the Cell, and fragment stuff on the RSX than anything else. This is despite the fact that all of these (except maybe the GPU) universal machines capable of computing anything we throw at them.







