AnandTech Interviews Mike Clark, AMD’s Chief Architect of Zen

> Alongside Zen we learned about Project Skybridge, the ability to put an x86 SoC and an Arm SoC on the same socket. Do you know how far along the Arm version of Skybridge, we know as K12, was in development before AMD went full bore for Ryzen?

> Although I've worked on x86 obviously for 28 years, it's just an ISA, and you can build a low-power design or a high-performance out any ISA. I mean, ISA does matter, but it's not the main component - you can change the ISA if you need some special instructions to do stuff, but really the microarchitecture is in a lot of ways independent of the ISA. There are some interesting quirks in the different ISAs, but at the end of the day, it's really about microarchitecture.