Got it. Well, to be honest the marketing distinction isn't terribly interesting. But it would still be cool to see how the early GPUs (even if not called that) evolved.

Doing all those calculations in hardware (the distinction the marketing was based on) seemed like a pretty big deal at the time, at least within the context of consumer PC graphics cards. (It had long existed in the high-end workstation space, SGI etc. but the workstation and consumer PC ecosystems were more separated than they are these days.)