john4lakers and LP---ROUND 5 of XBOX360 vs PLAYSTATION 3-----GPU MATCH UP!!

[MikeB]

Squilliam said:

MikeB said:

Squilliam said:

He was talking GPU alone...

If it wasn't a hack job then why was it so inefficient? For example all the modifications done to it were to hack stuff out to better fit the PS3 (ROPs) and it still has the major hallmark of an AGP interface GPU because the reads to main GPU memory from the CPU are stupidly slow.

Boy oh boy, why would the Cell need to use the GPU's memory in normal situations? In general it makes no sense as the XDR is faster and provides far lower latencies for the CPU to work with.

Changing a game engine to allow the GPU (big amounts of graphics data) to make use of the XDR memory however can make sense and it can do so at great speed. Actually the RSX can access both types of memory simultaneously, about doubling the potential bandwidth.

Its very useful for testing purposes. Its not that its important its more that it shows how similar the PS3 part is with the AGP part.

Agreed and usually for that the bandwidth should be more than sufficient. Tests performed while under development does not really affect the performance of the enduser's final product.