Currently running mac os 10.11 on esxi with a passed through hd4870 (hd7970 on the way) and it is running like a charm. Installation was actually somewhat easy, just make sure you run the unlocker, get a preinstalled mac os image and install vmware tools on it and passthrough the gpu and done. I do have one issue though, I can not disable the vmware console without messing up my wallpaper for some reason :L http://i.imgur.com/VUpTHlV.png