I know that my processor not is the best, but very soon i will buy a video card (and maybe later, a new processor).

I found as a good choice the Riva TNT with PCI/tv-out, but better the processor speed, better the Riva performance, so..
My question is.. the entire 686 system/cpu performance works normal or will be slowdown with the Riva?
and, exists another choice for my system, maybe the Banshee? If the performance for my machine will be the same, then i must choose the Riva??

Thanks in advance