Thursday, January 26, 2006

The Power of the Xbox 360 GPU

The Power of the Xbox 360 GPU is a very informative interview with a VP of Engineering at ATI. He speaks in reasonable detail about what's in the custom graphics chip of the Xbox 360 game console. He contrasts it with conventional GPU architecture, and of course espouses why it must be better than what NVIDIA will provide in the Sony PlayStation 3 GPU.

The Xbox 360 GPU, "Xenos", is actually a two-chip implementation, and one of the chips has a big embedded DRAM! Although lots of ASIC vendors talk about doing this, you don't see it often in practice. Performance-wise, it makes sense, as you get huge memory bandwidth via the very wide interface to the DRAM.

No comments: