I just bought a used dual socket (E5 V2) server to play with KVM and to try do just this... I suspect, performance is probably pretty righteous even in the VM,

I just bought a used dual socket (E5 V2) server to play with KVM and to try do just this... I suspect, performance is probably pretty righteous even in the VM, and old xeon's like the 2667 V2 are dirt cheap these days. MacOS doesn't need much VRAM and old AMD cards are pretty cheap (GPU passthrough is easier with AMD cards [1]). I'm really looking forward to running this later. [1] I could be wrong on this, but from my previous research into gpu passthrough made it seem as though NVidias consumer cards aren't generally allowed to do it because they're driver locked.