Per Geekbench, an iPhone 5S / iPad Air is comparable to a MacBook Pro from 2009, and fully half as fast as some of the very latest laptops. ARM is already extr

Per Geekbench, an iPhone 5S / iPad Air is comparable to a MacBook Pro from 2009, and fully half as fast as some of the very latest laptops. ARM is already extremely good for mobile applications. I don't have the numbers in front of me, but they certainly seem to be catching up faster than Intel has been able to cut down on power.