Nintendo Revolution specs

System 1 Modified CPU:
1 IBM Custom PowerPC 2.5 GHz with 256 KB L1 cache and 1 MB of L2 cache (an L3 cache is rumored). It’s Dual Threaded w/ 13 billion dot product operations per second.
Revolution GPU:
ATI Custom based RN520 core. The "N" stands for Nintendo, and is because the ArtX team is with them.
GPU core at 600 MHz. Will support up to 2048x1268 resolution, HD support is still being decided. Will have 256 MB’s of 1T-SRAM (the RAM is much better due to some tweaking, compared to GC’s RAM. The latency and Cells are much more efficient and faster. Around 1.2 ns is the latency, on average).
32 parallel floating-point dynamically scheduled shader pipelines.
Polygon Performance: 500 million triangles per second theoretical, average in game would be around <100>
Shader Performance: ~50 billion shader operations per second
Revolution memory:
512 MB of 700 MHz 1T-SRAM Other bits and pieces Revolution will support a PPU chip (Physical Processing Chip). There will be 32 MB’s of its own RAM, which will link to the CPU and GPU and the Controller.
There will also be a separate sound card that will support only DD 5.1 – DTS 7.1, rumors has it will have 16 MB’s, like the Cube DSP.

See the Revolutions contoller in action here.