ssj12 said: starcraft said: ssj12 said: HappySqurriel said: ssj12 said: Developers still havent figured out how to use all 6 SPEs at the same time properly; how the hell is it maxed out? |
You're assuming that the 6 SPEs can be used at the same time for an extended period of time though ... Many if not most (existing) algorithms that are used in game engines are not well suited to being split into 6 or 7 seperate parts, and even those that are run into load balancing and concurrency issues which are (very) difficult to resolve; even if you resolve those issues you still have the problem of getting data into and out of your CPU and into memory at a rapid rate to take advantage of the CPU which means you suddnly are bottlenecked by your memory bandwith and bus speeds. The SPEs may never get used to a level to give the PS3 the performance you expect |
The SPEs can be split into doing different tasks. 1 can do audio, 2 can do physics calculations, 1 can do dust particles, etc. |
This theory works fine for general computing, but is far less applicable for gaming that normally requires a more unified approach to programming. This is one of the primary issues with the PS3, its processor wasnt built for games like the Wii's and 360's |
the cell is designed as a multimedia processor, it can stream media faster then any processor in the world, thats why folding@home is fast as hell, the world's fastest super computer has 75 cell processors in it, and all IBM Blade servers with it in them run fast. Gaming is nothing more then specialised media. |
You have a fundamental misunderstanding of F@H. If you go to the site right now, you'll see a specialized GPU category that is, per client, better performing than the PS3.
Basically, they have different clients for different processors, and assign different types of folding for each. They then give an arbitrary score to the different types of folding. Since the Cell is a cross between a CPU and a GPU, it makes sense that it scores between the two on F@H. However, if you had the Cell run the same sort of folding as a comparable CPU, you'd see that its considerable slower. Same can be said for Cell running the same stuff as a GPU client.
The only real reason GPU and Cell score so much higher than CPUs on folding at home is because there are so many low powered PCs folding.
Secondly;Â AFAIK the worlds fastest supercomputer is still Bluegene L, and if not 75 cells sure as hell aren't going to top it.
Third; the Cell is not the fastest "media streaming" processor
Fourth; yes, Blade servers run fast - with or without the cell
Leo-j said: If a dvd for a pc game holds what? Crysis at 3000p or something, why in the world cant a blu-ray disc do the same?
ssj12 said: Player specific decoders are nothing more than specialized GPUs. Gran Turismo is the trust driving simulator of them all.
"Why do they call it the xbox 360? Because when you see it, you'll turn 360 degrees and walk away"