PS3
RSX GPU: G70(GTX 7800) chipset based 256mb with 22 GB/s bandwidth ~170 GFLOPS of performance based on 2005 era Opengl Direct x 9 equivalent
360
Xenos GPU, based on R500(X1800) with newer features from modern gpu's unified shader architecture with less then 512 of memory (average 256mb ish) with about 22 GB/s bandwidth with 240 GFLOPS of performance based on Direct x 9 shader model 3.
AMD 7850
Southern islands based, 2 GB GDDR5 with 153 GB/s bandwidth and has 1.76 TFLOP (1760 GFLOPS) of performance using Direct x 11 Shader model 5.
So basically
the 7850 has 7x the processing power, has 8x the memory, has nearly 7x the memory bandwidth and is two generations of API and features ahead of the consoles.
04dcarraher
AMD 7850 has Direct x 11.1 Level 11.1 e.g. 64 UAV (unordered access views) enabled for all shader stages (vertex shader, hull shader, domain shader, geomtry shader, pixel shader).
It means you can write to an UAV in the vertex shader and access the same buffer in a pixel shader.
DirectX 11.1 Level 11.0 only has 8 UAV (unordered access views) enabled for pixel shader i.e. less flexible.
PS: UAV is a random access (read/write) view on a buffer.
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