"Testing conducted by Apple in October 2020 using preproduction MacBook Air systems with Apple M1 chip and 8-core GPU, as well as production 1.2GHz quad-core Intel Core i7-based MacBook Air systems, all configured with 16GB RAM and 2TB SSD. Tested with prerelease Final Cut Pro 10.5 using a 55-second clip with 4K Apple ProRes RAW media, at 4096x2160 resolution and 59.94 frames per second, transcoded to Apple ProRes 42…
According to the Anandtech benchmark the A14 (what's in the latest iPhone) is 8% below the Ryzen 5950X. M1 is likely faster than that. https://www.anandtech.com/show/16226/apple-silicon-m1-a14-de... Quote: "In the overall SPEC2006 chart, the A14 is performing absolutely fantastic, taking the lead in absolute performance only falling short of AMD’s recent Ryzen 5000 series. The fact that Apple is able to achieve this…
"The craziest thing is how close [to 1/56th of a Xeon 8176] they get at 3W. That's the part that's staggering. What could Apple do with, say, laptop thermals? Desktop thermals? The mind creeps closer to boggling." -- me, 5 October 2018
Guess we're finding out.