QUOTE(yaz-o @ Oct 11 2005, 04:43 PM)
given that the ps3 has ALOT of processing power...
the graphics wouldn't be that heavily affected by AI, physics, etc? makes sense to me.
Well, it's true that Cell can perform more floating point ops, but it's not likely to be heavily utilized when you realize that it's only the SPE's in Cell that are good at FP. The main core is just a PowerPC core, the same as the Xbox 360's 3 cores. For ease of coding, the award goes to 360, though, because while all 3 of 360's cores speak the same language, Cell's main core and SPE's use very different instruction sets. Neither CPU is capable of dynamically assigning tasks to free threads, however, so the extent to which Cell's SPE's in particular get used will depend entirely on the programmer assigning tasks manually to each SPE. Even at that, those tasks are very limited because the SPE's don't have the full range of instructions that the main core does. Until the middleware becomes thoroughly developed, don't expect many games to make use of the SPE's at all. When both systems are fully leveraged PS3 will spank 360 in floating point, but 360 will spank PS3 in integer, which means that you can pretty much *always* expect superior AI on 360 games and probably better physics on PS3. Depending on the skill of coders, these differences will probably end up being minimal at best, and undiscernable to the common user.
I do have to agree that in the end, the two systems won't look much different. The graphical capabilities are pretty much identical, though the 360 will be easier on programmers thanks to DirectX and XNA, neither of which will be available on PS3, forcing programmers to learn not just one, not two, but *three* new ways of coding for PS3 (Cell main core, Cell SPE, RSX GPU, all three of which support different instruction sets).
All in all, both Cell and Xenon are disappointments, reverting to the in-order execution methods of a decade ago, losing capabilities like branch prediction, etc. Both systems would have been far better off with an Intel or AMD based multicore CPU.