Try using 3DMark fillrate (single and multitexture) scores. If your numbers surpass the theoretical limits of the four-pipe 9500, then it's probably safe to say you have an eight-pipe card, but don't take that as gospel. If you have a Pro version of 3DM, testing in 16-bit mode will let you approach theoretical peaks better than 32-bit mode due to the 9500's limited memory bus (a 128-bit bus means four 32-bit reads per second, so even if you have an eight-pipe card, it'll be limited by the memory bus). I think a flashed 9500 may still be missing some HyperZ components, BTW, so it may not be a complete 9500P.