[Jawed]

Originally Posted by Uttar

Not really. Assuming 32 bytes/vertex, 100M Vertices/second wouldn't even be 3.2GB/s. Now, please don't tell me next-gen games are going to sue 10x that, because I might just have to kill you then

Uttar

I believe PS3 has read access to vertex data of 4GB/s peak and Xenos 8GB/s.

Plus, with streamout, any vertex data written and then read by the GPU consumes bandwidth twice.

But, apart from anything else, my emphasis on GRAM is a balance of space and bandwidth. Which is why DDR (cheap) might be all that's needed for GRAM.

And, if GRAM is also used to hold constant buffers and post-GS cache then GRAM space becomes more useful, and not dedicated solely to input vertex data.

Jawed