Apple didn't ditch Intel for Skylake
 

It always planned a discrete CPU

This article might serve as a short history class about how Apple operates, especially in hardware design. Apple created its first phone SoC the famous A4 in 2010, and it created its first iPad specific A6X chip in 2012.

PC Gamer wrote an interesting article based on a conversation with our old friend Ex-Intel principal engineer, François Piednoël, who believes that he witnessed the inflection point between Apple and Intel in 2015 or the launch of Skylake. François makes a good argument that Skylake was far from perfect and made Apple unhappy, but then again, this is what we believe is just a small part of the story.

https://fudzilla.com/news/pc-hardwar...el-for-skylake