Maybe I missed it in the article, but why is this only present on x86 chips? How do 64-bit processors from Intel offer the same management functionality without this ME subsystem?
From https://en.wikipedia.org/wiki/Intel_Active_Management_Techno...
"The Management Engine (ME) is an isolated and protected coprocessor, embedded as a non-optional part in all current (as of 2015) Intel chipsets."It's common to apply this label to x86-64 too, in other words.