Do they use the SPUs arguably better than anyone (except maybe GG) - probably. But nothing I heard made me think they don't use the GPU too. TBH it would seem crazy not to. Whatever they put on Cell why not use the GPU as well - it still offers additional resources?
My understanding was they push a ton of additional computing (physics, animation, etc.) and a lot of additional graphics calculations through the Cell (thereby using it properly unlike a few games I could mention) and then push the final image plus some other visual elements through the GPU to produce the final on-screen render.
I'm curious about this and will have to hunt around for some other articles to see what I can find.
Try to be reasonable... its easier than you think...
