I lowkey wanna see a benchmark faceoff for win98 pre-2000 stuff, on duron 600 on boards with the various early socket A onboard graphics solutions, cyberblade vs savage vs SiS 315. ... though it got a bit better later on socket A with unichrome and NF2... I have heard tell that if you restrict comparisons to the only things you'd expect the NF2 to be any good on anyway, the unichrome doesn't do too bad on them either.
When I get into low level repairs on the trash thrash motherboard, that might be up for some onboard action, though I paired it with a radeon for a bit more oomph.
Earlier than socket A, there was the late P54 early P55 era when there were Rage and S3 onboard non integrated solutions that were sorta commonish. Intel did some on their first ATX boards, onboard SB16 was optional with those I think. For that time though when top end 3D was "nice to have" but you still had a chance of running things in lower res or software, the S3 etc weren't all that bad.... one could of course bolt on a V2 or PVR to help them out.
Back into the 486es it was more LPX style systems that had onboard, non integrated, ranging from ET4000, thru GD54xx to S3s of various sophistication. Usually you could override these with a VLB or PCI card, but for DOS performance the real gain was only a few percent so only much point for higher res and RAM in windows.
Unicorn herding operations are proceeding, but all the totes of hens teeth and barrels of rocking horse poop give them plenty of hiding spots.