A friend passed this on to me yesterday. Its Microsoft’s Xbox 2 (the Xenon) Architecture. Microsoft will formally announce the Xbox 2 on June 2, 2004.
Unified Memory Structure is very fast. Also very expensive.
The GPU can read/write all the system memory, including the CPU L2 Cache.
GPU:
shader 3.0+, 4096 instr, dynamic branching, unified VS & PS
memory write from shader code
48 ALUs(shader process) each at 500M Hz
466 GFLOPS
Free 4xFSAA
Frame buffer format:
INT, 2:10:10:10, 8:8:8:8, 16:16:16:16
FP, 11f:11f:10f, 16f:16f:16f:16f, 32f:32f:32f:32f
Pixel rate 4.0 BPix/S
Triangle generate 500 MTri/s
PixelShader 48 Ginstr/s
VertShader 48 Ginstr/s
Tex rate 8 Gpix/s
Tex Bandwidth 22GB/s
CPU:
3 identical cores, 64bit PowerPC at 3.5G+
total 6 HW threads
32K 2way I-cache, 32K 4way D-cache
1MB 8way shared L2 cache
84+ GFlops in one chip
Regards,
OE