Expendable is clearly ruled by Giga-Coppermine, which again performs best on the 'inofficial' BX-platform, closely followed by i840 and then VIA's Apollo Pro 133A. Giga-Athlon on KX133 is at least as fast as Giga-PIII on i820. I guess that's surprising too.
3D Gaming Performance - Unreal Tournament
Unreal Tournament favors Giga-Coppermine as well and as in all other 3D game benchmarks BX is the fastest, i840 is second, then there comes VIA's Apollo Pro 133A with i820 bringing up the rear. NVIDIA's 508-driver has changed the picture quite significantly.