Interesting, so by your tests, one could assume a Radeon 8500 is faster than a Ti4600 at 1600x32 w/ AF? That's something you don't hear every day. Did you run these "real-world" tests on the same platform? CPU might have been the bottleneck as well. Granted, I only owned a Radeon 8500 for a few weeks before I sent it packing back to Dell, but my Ti200 beat it considerably in every game I played or benched at the time (RTCW, BG2, MPBT3025, Q3A, etc.). Really couldn't justify keeping the 8500 based on potential, so I sent it back and bought another Ti200 for 1/2 the price ($220 from Dell, $115 for a second GF3). In total, I got 2 GF3's for less than the R8500 a month from release.
Chiz