Mac transition to Apple silicon
The Mac transition to Apple silicon is the process of changing the central processing units (CPUs) of Apple Inc.'s line of Mac computers from Intel's x86-64 processors to Apple-designed processors that use the ARM64 architecture. CEO Tim Cook announced a "two-year transition plan" in his WWDC keynote address on June 22, 2020, and the first Macs with Apple-designed processors were released that November.

This is the third time Apple has switched the Macintosh to a new instruction set architecture. The first was from the Motorola 68000 series to PowerPC chips in 1994 and the second from PowerPC to Intel processors using the x86 architecture in 2005-2006.
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