We don't know how MS will accomplish their layers of 3 different OS but anyone should notice that we are talking about MS here. The company that builds compilers since almost ever, built Visual Studio, author of DirectX and the company that was able to give devs an api that enabled devs to make graphics that were better than the competition (Xbox) and was at least on par to give graphics noone ever expected from this dated hardware (Halo4, Forza4, Forza Horizon).
They know how to build efficient software, tools and drivers.








