C# Detect mac M1 cpu programmatically

Question

I have to implement different logic between normal(?) mac cpu and m1 cpu.

But I don't know how can I detect that.

Answer 1

Under the assumption that M1 is the only arm64 chip that runs OSX then you can use:

var isArm = System.Runtime.InteropServices.RuntimeInformation.ProcessArchitecture == Architecture.Arm64;
var isOSX = System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(OSPlatform.OSX);
var isM1 = isArm && isOSX;