Stockfish Great Speed Improvements but which Version?

[Ras]

The new Stockfish DEV. which got the improvement for ARM CPUs now runs about 75% faster on my Apple device.

Yeah, I was totally surprised that there was still that much potential, given that AARCH64 architecture optimisation already had been addressed previously. What's even more remarkable: while all AARCH64 get a boost, Apple silicon does so much more. I suspect (speculation) that this is because of the exceptionally wide memory interface, implying that the other AARCH64 are bandwidth starved here.