Well technically even older cards should work and when anti aliasing turned off these older cards may perform a reasonable amount.
The thing is that I don't want have to support issues that might arise with these older cards and need to cut things off somewhere. If your willing to take the risk then garibaldi should work fine with your card.
I'd say the only people who still have the older cards are tinkerers, either by virtue or by circumstance, and tinkerers take pleasure in solving problems by themselves. At least, I do =) I just felt I needed to mention this to encourage people who might be lurking wondering if the beta is worth trying - it is. It works on a computer most people would not even attempt running barebones DS4 on.
I have not experienced any problems with the plugin viewport whatsoever after I turned the AA off, it's only memory issues during rendering that I am running into when attempting to enable AO on whatever environment lights I try (I don't have enough skill and patience for setting up complex light rigs out of spotlghts... besides, DSMs eat memory, too). But I did expect those memory issues to arise (what, a 32bit system and 2GB RAM, I'm pushing all the limits there), so no problem.
This is a render from the beta 5 testing - sorry its artistic value is negative, I would come up with a better colour scheme if I had more free time these days. Every length group on the head is a new Garibaldi node, the brows and the beard are also two different nodes. For weird hairstyles like this (the ones I have loong wanted to have for my characters! =)), I find it very efficient re-importing the same density map for the head and erasing it in unwanted places. Though I have to say sometimes it's tricky to get the eraser to black the map out fully.
I tried using multiple density maps within a single Garibaldi node, but it didn't seem to produce the results I wanted (only one map would render at a time)
A note for Paint.NET users: while doing the brows, I noticed that PNG files saved from Paint.NET won't load (even if you just open a Garibaldi generated texture, paint over it and save back - image information says PNGs are the right type etc, but apparently Paint.NET uses a weird algorithm), I needed to reexport them from IrfanView using PNGOUT.
As for beta 6, I have not rendered anything yet (I hope the disk cache mode works for me) because DS crashed twice on me when I was saving a scene in which I created hair for vintage A3. Is that OK? Should I just stick to Genesis for the time being?
Click thumbnail to see full-size image