I have an application using openGL. While I run in a system with GeForce7600GSS /w 256MB, in WinXP running P4 2.6GHz 512Mb, the application running quite smooth. However, when this application run in another system, using GeForce8600GTS /w 512MB, the performance dropped a lot. As I am wonder why a higher-end display card with newer Duo Core CPU will slower than a lower-end system.
What will be the reason of this situation? Anyone have this kind of experience before?
Try disable multithreading optimizations in the driver ?
If you search for this in these forums, you will get more info on this, apparenlty it is quite frequent that these optimizations are not done correctly, and it is better to disable it.