Xenon vs Cell Which one really is better ??

[Fishie]

Mifely said:

Fishie said:

Marty8370 said:

NNN2004 said:
i dont want to add fuel on fire but .. before in one site i read that the Cell have one main Core & 7 virtual .. idont know if this is true but maybe someone here know what this is mean.

 

The PS3 Cell has 8 cores(1 PPE & 8 SPE's). 1 SPE has been disabled too improve yeilds when making the Cell chip. So the PS3 has 1 PPE & 7 SPE's that are useable to the PS3 as a whole

 

SPE`s are not cores, we went trough that shit already.

A core can work independantly, the SPE`s cannot as they NEED feeder data from the PPC core.

 

Um, actually, they can feed themselves with their own DMAs, as long as their localstore code knows where to look. They are independant processors. They could even feed themselves new instructions if they wanted -- that's not really something that's going to happen very often, but they could do it. They are no less indepedant than the "secondary" cores of the Xenon -- they just operate in a very different manner from the PPU, unlike the Xenon's extra cores do from its primary. They are capable of independant operation -- in fact, if they weren't, the cell would be horribly slow, as asynchronous processing wouldn't really be possible.

Claiming that they are "co-processors", or not independant cores... is just plain incorrect. They are capable of independant operation, without question.  As a matter of fact, having a SPU feed itself data is one of the best ways to get awe-inspiring performance out of it, as no intervention from the PPU is required.

 

 Oh so they can fetch their own stuff and manage their own game data without any instructions from the PPC core and fit it al in the 256kb they have acces to?

 

Quick tell the SCEI peeps how to do that because they would kill for that info.