Mac transition to Apple silicon
2020–2023 transition of Apple computers to using Apple-designed ARM-based processors
Mac transition to Apple silicon
The Mac transition to Apple silicon was the process of switching the central processing units (CPUs) of Apple's line of Mac computers from Intel's x86-64 processors to Apple-designed Apple silicon ARM64 systems-on-a-chip. Apple CEO Tim Cook announced a "two-year transition plan" to Apple silicon on June 22, 2020. The first Macs with Apple-designed systems on a chip were released that November; the last with an Intel processor, the Mac Pro, was discontinued in June 2023, completing the transition in nearly three years. The transition was the third time Apple had switched the Macintosh to a new instruction set architecture. The first was from the Motorola 68000 series to PowerPC processors in 1994, and the second was from PowerPC to Intel processors using the x86 architecture in 2006. The final version of macOS that ran on Intel processors was macOS Tahoe, released in September 2025.
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