Unfortunately this card doesn't offer any advantages beside of a supposedly good image quality, passive cooling and a DVI connector. In windows it is slow, and it's DX9 feature is worthless. On the other hand in an old K6-II system the cpu might be the bottleneck (= even this slow card is to fast)
I suggest that your're interested in it because it is PCI. Nevertheless it is said that nvidia based cards offer better compatibility in dos (and Matrox cards offer superb signal quality too). I don't know if there are also newer nvidia PCI cards that offer a DVI connector, if that's what you need.
If PCI & DVI is not a must have, you will be better off with a Geforce 2 Ultra, GF 3 or GF4 4600Ti.
Here is some interesting ranking of graphics chipset, the site is in german, but I think the chart speaks for itself:
http://www.pc-erfahrung.de/grafikkarte/vga-gr … krangliste.html