I'm not positive, but I believe the V3100 was the equivalent of a Radeon X600. It would be OK to use if you already have it, but I wouldn't pay more than about $10 for one if you're looking to buy it (and even then I'd be rather disinclined to choose that over a more modern solution). Otherwise, you'd be better off just spending $25 for a Radeon 4350 or something. Assuming, of course, that you don't have onboard video with your motherboard.