https://techcrunch.com/2020/04/23/apple-said-to-sell-macs-powered-by-in-house-arm-based-chips-as-early-as-2021/

Apple’s long-rumored Mac ARM chip transition could happen as early as next year, according to a new report from Bloomberg. The report says that Apple is currently working on three Mac processors based on the design of the A14 system-on-a-chip that will power the next-generation iPhone. The first of the Mac versions will greatly exceed the speed of the iPhone and iPad processors, according to the report’s sources.

Already, Apple’s A-series line of ARM-based chips for iPhones and iPads have been steadily improving, to the point where their performance in benchmark tests regularly exceeds that of Intel processors used currently in Apple’s Mac line. As a result, and because Intel’s chip development has encountered a few setbacks and slowdowns in recent generations, rumors that Apple would move to using its own ARM-based designs have multiplied over the past few years.