which card? GeForce 2 Pro?
With 64MB of ram on it, I'd guess you'd be looking at the very least around 60fps at most times... maybe 40 in smoke...
I can get around that in 16bit with a 32MB GeForce2 MX... your extra 32mb of ram should make a big difference, but 32 bit is a huge video hog, so who knows...