MrMafoo said:
As you know, the overall performance of a system is as lot of things, from memory speed, bus design, CPU, GPU, Storage access speed, OS, and many other factors. In no way am I claiming the 360 is 20-30 times faster than the 360. I am claiming at very specific things, it can be as much as 20-30 times faster. Nothing might ever come out of that speed (as rocketpig says with his “ifs”, and can very well be right). But when people say it can’t be done, is where I step in. There is a lot of untapped power in the PS3 that a lot of people (including me) have no clue how to harness. That does not mean it won’t be utilized by someone smarter than I am. BTW: Here is an example of getting more than 20x the speed of the PPC in the CELL with utilizing 1 SPU (it’s for the medical industry). The PPC in the cell is on par with a single core in the 360. So if the 360 is 3x faster than the CELL’s PPC, then the CELL’s SPU’s are collectively 46x faster than the 360 at this type of calculation. ((20x7)/3). Grated this is just a rough estimate, and other things would have to be taken into account in order to use all 7 SPU’s, and I realize you would never actually get 46x the usage due to overhead, but it’s evidence that what we are looking at in the CELL is far faster, at specific things, then the 360. http://www-01.ibm.com/chips/techlib/techlib.nsf/techdocs/5B1968BDD8D11639872570AB005A3A39/$file/GSPx2005paper%20for%20sdk.pdf
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So SPE's are magic now, is the Cell processor produced by a process which involves love?
The Cells basic architecture is very similar to DSPs which have been in production for decades; in general, many DSPs include a central core and several simple (typically super-scaler RISC) cores and give up more powerful instructions (that would be in a CISC processor) in favour of having the ability to process in parallel more generically.
At best, each SPE would be able to match the per-cycle performance of a core from the XBox 360s CPU. Being that the Cell can divide an algorithm into more parallel processing units as a whole it should be able to outperform the XBox 360's CPU in many algorithms.
Each SPE in the Cell is far less powerful that the XBox 360's CPU in any algorithm you can run, but overall the Cell may be more powerful with parallel algorithms like the fast fourier transform or recursive raytracing.













