Well, RIVA 128 didn't even have multitexturing, so not much of that is going to be applicable. I don't think that Voodoo era chips even used Pineda rasterization as that article details; they did fancy scanline rasterization.
I interpreted rayiner's question as present tense, "what do GPUs look like now" - you're definitely right that most of the architectures I know of from back then were doing scans or (a bit later) tiling.