AMD's Zen 3 (Ryzen 5xxx series) are beating the Apple M1 in single core score: https://browser.geekbench.com/v5/cpu/singlecore As another datapoint Ian (of Anandtech) estimated that the M1 would need to be clocked at 3.25Ghz to match Zen 3, and these systems are showing a 3.2Ghz clock: https://twitter.com/IanCutress/status/1326516048309460992
OK... but let's say it's 95% there, even. How much power does an M1 draw compared to a 5950X? It's not even funny. And the M1 is running at a lower clock.
It's almost certainly better per watt, which I'd expect because the 5950X (and the 6-core 65W TDP 5600X, which also tops the MBA multi-core Geekbench result) are still desktop processors.