| Deneidez said: @quaiky Very nice text, however you missed the eDram on X360 and 1080p picture takes about 1920×1080*24 bits=~6MB(Of course it depends how many colors you will use, but its usually true color all the way today.). PS3 SPUs also have small amount of memory as well(256kb each, like Plaupius stated). eDram on X360 acts like larger cache. Its only 10MB, but its also 10 times faster than regular ram so stuff you need more frequently with CPU or GPU go there while they are processing it.
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yes you are right on the memory usage i did not calculate it and somehow had it in my mind that its 4mb. depending on the exact architecture of the gpu its probably even 8mb with 24bit color depth stored in 32 bit. (but still its not such a big amount of the graphic memory that is reserved for this, especially if you think back 10-12 years where the memory on a gfx card was still a blocking factor for what resolutions you could display with it).
i really don't want to judge now which ram architecture is superior, both might have their advantages in different situations. on pc's the split architecture is actually quite effective but on the ps3 the amounts of graphic ram are actually on the low end for 1920p resolutions with high res textures in my opinnion. the amount of xdr ram is probably less of a problem, the actual program code is usually not that big. especially with the option to highly optimize your code for the console hardware it should be really no problem to get along with the amount of the main memory.
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