as told earlier, it was believed that it'll show twice the performance of 4X, ut it didnt, though a small difference in performance was there. like in some ABC game, same card does 45 FPS on 4X, it was doing 48FPS or a little higher on 8X. theoritically its supposed to be 90FPS, and it wasnt, even I have seen Video cards showing same frame rate on 4X and on 8X (discusting!).
PCIe is beleived to have twice FR of 8X, still it isnt, as if you see PCIe is 16X, means its suppose to be twice the rate of 8X, still it isnt.
Intel Core2Quad 2.66Ghz 12MB L2-Cache
4096MB DDR Kingston Hyper-X
XFX 9600GT AlphaDog
Seagate 2 X 320GB SATA2
LG L246WH Flatron 24"