The Riva TNT 2 says just that on the chip, no Pro or anything. The card seems to be an OEM that I can't find on google. VRAM is km432s2030ct-67 which is 32 bit?
Thanks for the insights! I'm not a parts collector (or don't want to be) so something being first or rare is not a reason in itself for me to keep it; my collection is limited to functioning PC's that should add an era of gaming without too much overlap. In this collection there is nothing to enhance my P4 XP system which already has a vastly more powerful GPU. And for my P3 W98 build, there is also nothing that touches the ti4200 in there, even within my DX7 limit. My DOS/early Windows build is a 486 DX50. But that only has ISA and VLB so nothing relevant in this lot. Those 3 PC's tend to give me a wide spectrum with very little overlap. I don't know if there would be any use case for me to add an early Pentium (100-200) as I can't think of many games that are too heavy for the 486 but don't run well on the P3. But, just in case, I'll keep one Matrox Millennium II for myself so I have it available if I ever get an early Pentium. And I'll also keep one S3 Trio64V+ as they're worth little but so practical to have around as an "it just works" card. And I'll keep one of the FX5200 around as a more powerful spare card for emergencies.
As for my spare P3 667 mobo, I'll configure it into a max compatibility W98-and-earlier system with what I have available. No ISA sound card in the bin, so I'll put in the Audigy2zs for W98 quality and the CT4810 to close any compatibility gaps (though so far, I've been able to make the Audigy work with all my DOS games). And for GPU I'll give it the MX460. Seems like a good match with the CPU power. Add 256MB RAM to it and I think this is a config that can sell for enthusiasts.
So that means all the rest can go up for sale, I think. Not everything will sell but we'll see about that when time comes.