oh my, I didn't notice this until 5 min ago. the Xenon EDRAM bandwidth is
for an EDRAM write bandwidth of 32 GB/sec
32 GB/sec aye? that seems kinda low. does it not? the PS2's eDRAM bandwidth is, as we all know, 48 GB/sec.
32 GB/sec EDRAM bandwidth is also lower than the also unconfirmed report (the old one) of 51.2 GB/sec for system memory.
PS3's EDRAM bandwidth on the GPU is likely to be in the 100s of GB/sec
so once again, this leads me to believe the Xenon block diagram and this new document outlining Xenon in detail, is either fake, or very old.
edit: however it looks like I missed something else too
Each of these pixels can be expanded through multisampling to
4 samples, for up to 32 multisampled pixel samples per clock cycle.
With alpha blending, z-test, and z-write enabled, this is equivalent
to having 256 GB/sec of effective bandwidth! The important thing is
that frame buffer bandwidth will never slow down the Xenon GPU.
equivalent to 256 GB/sec of effective bandwidth.