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by Tagbert 2038 days ago
If you listen to interviews with Apple’s chip team, they talk about optimizing performance of the M1 based on how Mac OS works. An example is how they handle allocation and deal location of objects. Objective-C and Swift using this a lot for loops and for their reference count memory garbage collection. The M1 is 5x faster than Intel for those operations.

that kind of optimization between hardware and software can have a big impact and is part of Apple secret sauce.