|Launched||November 10, 2020|
|Designed by||Apple Inc.|
|Max. CPU clock rate||3.2 GHz|
|L1 cache||192+128 KB per core (performance cores)|
128+64 KB per core (efficient cores)
|L2 cache||12 MB (performance cores)|
4 MB (efficient cores)
|Architecture and classification|
|Application||Desktop (Mac Mini, iMac), Notebook (MacBook family), Tablet (iPad Pro)|
|Technology node||5 nm|
|Microarchitecture||"Firestorm" and "Icestorm"|
|GPU(s)||Apple-designed integrated graphics (up to 8 cores)|
|Products, models, variants|
|Predecessor||Intel Core and Apple T2 chip (Mac) |
Apple A12Z Bionic (iPad Pro)
|Mac transition to|
The Apple M1 is an ARM-based system on a chip (SoC). It was designed by Apple Inc. as a central processing unit (CPU) and graphics processing unit (GPU) for its Macintosh computers and iPad Pro tablets. It also marks the first major change to the instruction set used by Macintosh computers since Apple switched Macs from PowerPC to Intel in 2006. Apple claims the chip has the world's fastest CPU core "in low power silicon" and the world's best CPU performance per watt.
The M1 was released in November 2020, followed the next year by the Apple M1 Pro and M1 Max versions. These differ largely in size and the number of functional units: for example, the original M1 has about 16 billion transistors; the largest M1 Max, 57 billion.
The memory architecture makes the RAM not user-upgradeable; it is sold with 8 GB or 16 GB, which is shared among all compute units.
The initial versions contain an architectural defect permitting sandboxed applications to exchange data, violating the security model.
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