If you look at the fourth table, the 15W config allows for 6 seconds of turbo at 42W. Which probably explains why the benchmark isn't very different between the 35W and 15W configurations. The processor probably just draws 42W for the duration of the benchmark in both cases. I don't know if comparisons to the Apple M1 are apples-to-apples (no pun intended) which tops out at like 20-25W.

That said, AMD's offering in this space is very impressive and really makes you question what Intel has been doing the last three years.