Originally Posted by Sora
I'm pretty sure the 8600's have 64 streams while the 8500 is the one with the 32...
No 8600GT/GTS has 32 streams, and 8500 has 16
You can see some benchmarks from here
AnandTech: DX10 for the Masses: NVIDIA 8600 and 8500 Series Launch
Nvidia's GeForce 8600 series graphics cards - The Tech Report - Page 5
In shader-intensive games like STALKER and oblivion the 8600GTS can outperform X1950pro and even 7950GT.
Since most of the future games are shader-intensive then I assume that 8600GTS would be much better than X1950pro in future games
In the current games, 8600GTS is on par with X1950pro
8600GT is slightly slower than 7900GS in most games
Until now there is no benchmark test for 8500GT, but I assume that 8500GT will be slightly faster than 7300GT, and it might perform on par with 7600GS
Look at the 7600gt and 7800gtx. The 7600gt has 12 pipelines and the 7800gtx has 24 pipe lines (1/2 the power). The 8600's have 32 stream processors and the 8800gtx has 128 stream processors (1/4 the power 0.0).
Remember that pipelines and stream processors is not everything.
I pretty sure that the difference between 8600GTS and 8800GTX is like the difference between 7600GT and 7900GTX