I remember when I first tried the SiS 6326. My first thought was something along the lines of “what the hell is this piece of crap?”. A few months later, I have to revise my opinion, if only somewhat.
One thing I should mention, is that my card is merely a C3 revision. From what I can gather, the original C1 model was terrible. And from my tests, the C3 is not that much of an improvement. Games will occasionally show warped polygons, and in general, texture perspective correction is botched to the point of not working, at least in some of the titles in my benchmark suite. 2D elements seem to have trouble displaying correctly. Texture resolution is often abysmal (the card’s paltry 4MB and very simple AGP compliance don’t help). Mipmapping apparently turns on and off at random. And the lack of OpenGL is just icing on the sewage cake, not that the 6326 would be able to run Quake 2 or even GLQuake decently, even if it were supported. Mind, the newest drivers even say that an ICD OpenGL is included… but I haven’t managed to run anything on it.
So it doesn’t sound great today, but as I tried using it a bit more, and considering the circumstances, there’s something to like too. Image quality is actually okay for a cheap 1997 card – there was far worse around, usually for a higher price. A common Virge might look generally better, but it also runs slower, and was more expensive anyway. And it should be mentioned that a later C5 revision solved most of the quality issues of the 6326, making it far more attractive. If it had come out earlier, it would have been even better… but you can’t have everything.
A basic Voodoo 1 was another world, of course. But it was also $300. Bragging to your console friends was a somewhat expensive proposition then. The SiS 6326 though, that was just $50… and for that, you got a decent card that could accelerate games to 16 bits fairly smoothly up to 400×300 or even 512×384. Of course it supported higher as well, but people weren’t fans of slideshows even back then.
If I can find it cheap (and it should be easy, since these cards sold quite a lot), I would like to get my hands on the AGP C5 revision, to see how it compares. I also wonder how it compares to a Nintendo 64… maybe I will try a few conversions.