Well I've tested this driver and currently found no big difference
between this one and Sigma 3.0 :(
I don't have 3Dmark so I used two in-game performance tests (Devil May
Cry 4 and Company of Heroes)
And I performed a "clean install" for both two drivers.
Here's the results:
In DMC4, there are four scenes being tested, and FPSs are shown below:
Sigma 3 18.75,16.73,22.95,13.58
Sherry 18.46,16.07,23.15,12.51
In CoH, the game crashes during the middle of the test when using
Sigma 3 driver (I don't know why), but according to my observe these
two drivers are nearly the same in performace, no big difference in
FPS.
Anyway, I tested Sherry and Original X3100 driver(not VGA driver):
three parameters are average, highest and lowest FPS.(I set the shader
to ON, shadow to LOW, texture quality to HIGH and in 1024x768)
Sherry 12.8,30,1.9
Original 10,22.7,3.9