Nintendo Revolution Specs - Rumored
CPU
Processor: (1) IBM Custom PowerPC 2.5 GHz dual-threaded
Cache: 256 KB L1 cache, 1 MB of L2 cache (an L3 cache is rumored)
13 billion dot product operations per second
Revolution memory
512 MB of 700 MHz 1T-SRAM
Revolution GPU
Core: ATI Custom based RN520 core (the "N" stands for Nintendo, and is apparently because the ArtX team is with them)
GPU core at 600 MHz
Resolution: Support up to 2048x1268 pixels
HD support: Still being decided
Memory: 256 MB of 1T-SRAM (the RAM is supposedly better due to some "tweaking" compared to GC's RAM. The latency, around 1.2 ns on average, and cells are much more efficient and faster).
Pipelines: 32 parallel floating-point dynamically scheduled shader pipelines.
Polygon Performance: 500 million triangles per second theoretical, average in-game would be < 100 million/sec
Shader Performance: ~50 billion shader operations per second
Other Info
Revolution will support a PPU chip (Physical Processing Chip). There will be 32 MB 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 (rumor has it with 16 MB, like the Nintendo Cube DSP)
Whether these specs come to pass as well (or closely at least) remains to be seen - but we can at least have fun bringing you the info as it becomes available.