It's a PCIe Nvidia 6200; XP SP3; Billabs arcade multisync.
If you notice in the soft15 thread, low clocks are basically a matter of drivers, not hardware. That may've been different before '01 or 2, but not since then.
So interface isn't an issue, cos (again, note in the soft15 thread), many people are using PCIe cards.
Now, compatibility can be an issue, and it seems pretty much anything Nvidia (up to what the docs say, 6800) will work, but ATI is hit an miss. Older ones seem to work just fine, depending on your mobo an all.
Pixel clock (um, best to look that up) - horizontal clock (scanrate in khz) - vertical clock (refresh in hz). Look up my tutorial on the video/monitor board. That thing should be stickied.