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E.g. the Apple Watch is more powerful than all the computers that sent Apollo 11 to the moon.

In that example, we may as well compare a thermonuclear weapon to a conventional one—the scales are gargantuan. In my opinion a more apt comparison might be the TI-84 calculator, which was ~350x faster than the computers used in Apollo.

I'm pretty sure the Apple Watch has more computing power than desktop computers from 15 years ago.

I tried to look up these numbers, but, understandably, I'm having trouble finding Apple Watch benchmarks. It looks like first gen Apple Watch (2016) had around 3GF [1], where P4 had around 12GF, so stretch that 15 to 20, and it could be in a reasonable ballpark.

1. https://www.mouser.com/blog/stunning-increases-in-processing...

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