> While Apple M runs Arm instructions, it is not any of the cores designed by Arm like the cortex A7 series or the X series How can we be sure about this since

> While Apple M runs Arm instructions, it is not any of the cores designed by Arm like the cortex A7 series or the X series How can we be sure about this since Apple does not disclose any details about their chips? > Apple's cores are actually completely custom, with no input from ARM the company. Apple is one of the founders of ARM, with other two being Acorn Computers and VLSI Technology.