Have you guys ever tried any useful 3D benchmark app?
I’ve just found one on 3dGameStudio website.
Find out how many polygons and vertices per second your computer is capable of rendering. Use the test results to help find the peak to help optimize model-only levels for maximum detail and the highest frame rate. Customize many entities to create and test with.
[Freeware, 1.95 MB]
Jump HERE and search it with your browser. The direct link to the file seems only temporary.
Good luck !