just to prep you kiddos
I believe it will be roughly the same time period on all hardware...
about 25-30 minutes for the Windows based install process. The one where you see it "installing" itself from the desktop. Then it will have that "do not turn off, installing updates 1 of 3" thing....that will take about 30 minutes as well.
so plan for an hour for the process
have some system, device drivers handy just in case too