I have an 8rda+ with nforce 2 and a Leadtec WinFast with GeForce2MX-400. My frame rate is at 800FPS when using 16 BPP and at 370 FPS when using 24 BPP.
I also did some tests on a laptop with a GeForce2 Go GPU. It is about 80% faster!
All playing around with setup and drivers did not really gives any better performace. On both systems fast writes and SBA are disabled. So this also seems not to be the reason
Fast Writes: Not Supported
SBA: Not Supported
AGP Rates: 4x 2x 1x
This says the GPU doesn't support SBC and Fast Writes.
I thought bying chipset and GPU from same manufacturer will ensure I am not running into too many performance problems. But I failed. Even the latest BIOS craches my GPU (or AGP or what else)
So nvidia, please help solving the problem. I saw a lot of people, especially with nforce2 chipsets havin big performance problems and there is no feedback from your side!