As has been mentioned MANY times in the past, your graphics card has absolutely nothing to due with render computations. Image processing for games and such, yes, but actual rendering is all done in the CPU. In fact, I don't know of ANY commercial 3D graphics programs (free or not) that make use of the GPU for rendering, yet. There's been a lot of talk and experimentation, and perhaps it'll come eventually, but for now you gotta have a fast CPU (along with simple meshes and shading) to bring render times down. Of course, it helps to have a program that takes full advantage of multi-core processors, too, and I'm not certain Anim8or does just yet.
