i dont see what the big deal is even if it is twice as powerful. It is commonsense at the end of the day. if both the xenon and the cell have multicore chips that run at the same speed, then it would be pretty obvious that if u had twice the number of SPE's on one or the other, then the performance would be something near to being twice as fast.
at the end of the day each SPE is assigned some sort of work. the more spe's you have the more work you can assign to them, meaning more gets done at the same time. e.g. one factory with 10 workers will do more work then one factory with 5 workers.







