In your opinion,
If you were to sit down and compare the 2.2, 128mb GT8600 2GB ram Santa Rosa, with a 2.33ghz, 2gb ram, and 256 Radeon, which one would win graphics wise? Or overall performance wise for that matter?
Overall performance wise you wouldn't notice too much difference.
Graphics wise, even with less VRAM, the 8600M GT is a significant jump beyond the Radeon X1600 (especially on the Windows side).
-Zadillo