I know it sounds childish, but just for autocad should i stay with macbook ( i7 quad, 16gb ram , 512ssd and 4 gb GPU ). Or Alienware (i7 quad , 32 gb ram , 8gb Gpu 1080, 512 ssd). ? I can't decide, ... and is not about the OS vs Windows ( i can get windows on mac) not the other way .