Well the power wall has kind of set an upper bound on clock speed. (although kaby lakes can do 5GHz no problem which is pretty impressive) So until a fundamenta

Well the power wall has kind of set an upper bound on clock speed. (although kaby lakes can do 5GHz no problem which is pretty impressive) So until a fundamental breakthrough in heat extraction happens, were kinda left with only power efficiency and parallelism as ways to increase performance (which desktops have done). Mores law has still more or less held true thus far. I think ARM just had a long way to catch up but it will eventually hit physical barriers at some point and performance increases will slow.