Yes. It's how '98 speed enthusiasts rolled while decent AGP video hardware were in its infancy

ScoutPilot19 wrote:

Hi, all ! Is there any sense to use 2 Vodoo cards on a Pii machine with an AGP slot ? […]
Show full quote

Hi, all ! Is there any sense to use 2 Vodoo cards on a Pii machine with an AGP slot ?

I never had a PCI vodoo card - when they were actual I still had a P1-75, and in 1999 bought a PII with AGP ...

And today found a PII machine with AGP and two voodo cards installed...

http://hardware-museum.livejournal.com/174200.html

My K6-III/400 system was actually using this approach, using the AGP slot for a TNT2 M64 with 16MB RAM for desktop graphics and a single Voodoo 2 for gaming 😀
Early AGP implementation had a few issues while AGP was still new and being developed, kinda like what leileilol mentioned 😀