yeah, or the fact that you actually OWNED a G400..
"AGP is VERY useful. Nvidia cards can send MUCH more geometry over the agp bus for to help its T&L engine or just to have a throughput advantage. Once games get more complex the Voodoo 5 will CHOKE because it dosent use agp's features to transfer vertex data."
Doomguy, AGP 4x (66mhzX4=233mhz effective bus speed)is supported by the Voodoo 4/5, however it doesn't take advantage of other features, such as AGP texturing (useless), and Fast Writes (could be somewhat useful in todays games, however with T&L moving data from that whole area anyway, it renders the AGP bus pretty much useless.
you gotta hand it to 3dfx about seeing at least some of this coming (hey, if T&L didn't come out from nVidia, 3dfx might have made their next series card WITH all AGP features, but now I'm not so sure, becuase now AMD is making a totally new bus architecture).