You’ve probably heard of ARM processors a lot lately. They are used in all kinds of devices like smartphones, tablets, routers, and so on. I’m sure you’ve also heard why they are so great: They’re powerful, and they’re extremely energy efficient!
Well, so is my Intel processor in my desktop computer, frankly. On average, it uses about 9W of power (I measured), and it’s a quad-core chip!
Well, 9W is a lot for smartphones, which have very small batteries. But still, what is the deal with these mystical ARM processors? What exactly are they, and what makes them so great?