This new driver contains fixes for the following items, regarding the 9700x/9500x series of graphics boards:
1) Stuttering in most applications, such as UT2003, Aquanox, etc... Some apps (rallisport comes to mind) show some stuttering in all graphics cards, esp when paging in new data. Both GL and D3D should show improvements (but D3D should get the most).
2) Mouse lag in D3D. Should be much better.
3) Min FPS in some cases (GL & D3D). We expect improvements in some of the suprisingly low with greatly varying frame rate cases. If you were CPU bound, then you probably are still, however (so if you "maintain" a low FPS, it's probably a CPU limit).
If you still notice any problems, please report it to the catalyst crew, but if you still see any of the above issues, check to see if others are seeing them around here. We haven't tested every single app and HW configuration, so we still need feedback if someone sees problems.