Even beyond that, short of something like blender, Windows just can't handle that kind of horsepower, it's not designed for it and the UI bogs down fairly fast.
Linux, otoh, I find can eat as much CPU as you throw at it, but often many graphics applications start bogging down the X server for me.
So I have a windows machine with the best GPU but passable cpu and a decent workstation gpu with insane cpu power on linux.