T8103

The Apple M1 is the first ARM-based SoC designed by Apple Inc as a central processing unit for its line of Macintosh computers.

It was first introduced at Apple's 'One More Thing' keynote on 2020. and Apple claims that it has the world's fastest CPU core "in low power silicon" and the world's best CPU performance per watt.

It's identified internally as T8103 and the part number is.

Specifications
General Cache GPU Memory (RAM)
 * Manufacturer: TSMC
 * Clock rate: 0.6 to 3.2 GHz (performance cores), 0.6 to 2.0 GHz (efficiency cores).
 * Core design: Apple Firestorm x 4 and Apple Icestorm x 4
 * Instruction set: ARMv8.6-A
 * Performance cores
 * L1: 192KB instruction, 128KB data.
 * L2: 12 MB (shared)
 * Efficiency cores
 * L1: 128KB instruction, 64KB data.
 * L2: 4 MB (shared)
 * Apple-designed eight-core (seven in some models)
 * 8GB or 16GB LPDDR4X in a unified configuration.

iPad Air

 * iPad Air (5th generation)

iPad Pro

 * iPad Pro (11-inch) (3rd generation)
 * iPad Pro (12.9-inch) (5th generation)

Mac

 * iMac (24-inch, M1, 2021)
 * MacBook Air (M1, 2020)
 * MacBook Pro (13-inch, M1, 2020)
 * Mac mini (M1, 2020)

Bootrom
Version
 * 5540.0.0.400.2

Vulnerabilities
 * None