Earlier quoted context omitted.
Doesn't this miss differences between CPUs in their per-core efficiency?
The per-core efficiency of Apple and AMD CPUs on the same process node is pretty much identical. This has become harder to directly compare because they're now using alternate process nodes from one another, but have a look at this chart for example: https://www.cpu-monkey.com/en/cpu_benchmark-cpu_performance_... What do we see at the top of this chart? TSMC 3nm (M3/M4), followed by TSMC 4nm (Ryzen 7000U/8000U), TSMC…
And this benchmark doesn't even include M4, which is even more efficient.