The NVIDIA GPU Programming Guide provides useful advice on how to identify bottlenecks in your applications, as well as how to eliminate them by taking advantage of the GeForce 6 Seires and GeForce FX family''s features. It includes chapters on:
How to Optimize Your Application
General GPU Performance Tips
GeForce 6 Series Programming Tips
GeForce FX Programming Tips
and more...
http://developer.nvidia.com/attach/7101