Not sure what you are asking for. My 8500 is nice and smooth, and all I did was install it and used the latest ATI release drivers.
I tried out Radeon Tweaker, but found it crashed some programs I have to be able to run that are not DX nor OpenGL related. Just regular Windoze apps. So I just run it as she came.
So, if you could be a bit more specific about what type of information you are looking for I am sure you will get a lot of good answers.