I don't think that's it. My coworker has an identical hardware setup and he says he's never had this problem. And anyways, I work for a small company, and we don't have any extra graphics cards to swap in.
It happens to ours sometimes when in a command and moving over civil points with the point style as the X inside the O (pdmode 35). If OSMODE is 107 (end mid nod int ins) it looks like acad tries to calculate every endpoint, intersection, midpoint etc. on every point symbol. The farther zoomed out and the closer the points are to eachother the slower it goes. I usually toggle F3 to turn off osnaps when rolling over stuff like this. That or turn off some of the osnaps.
I found that simply turning off some of the osnap settings (intersection in particular for some reason) and turning off "selection preview when a command is active" in the options has solved this issue. I haven't experienced this crash since adjusting these two things.
Hope it helps you too.