By using this site, you agree to our Privacy Policy and our Terms of Use. Close
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

 


You said "At specific types of math (not all), the PS3 is 20-30 times faster than the 360."  It's a bit more limited than that.  Specifically, the PS3 is 20-30 times as fast at performing bit-blit operations on arrays, i.e. - serialized equations won't benefit.  I think you'll find that specific texture pre-processing being offloaded from the GPU will be much faster, but decision tree work (deciding how a blade of grass should move against a background or how an enemy's AI will respond) isn't helped by this, and modern GPUs do a lot of the texture work themselves.  In that case, I would rather have 3 general-purpose cores.

 

So, the PS3's exclusive game can feature incredibly pretty, dumb combatants while the 360's exclusive game can feature less pretty, but smarter combatants.  This could really give the PS3 a leg up on games that have clueless, very detailed characters splashing around in very realisting waves.