The Cinebench R23 results for 1950x[1] and M1Max[2], including single and multi-core:

           single     multi
  M1Max:    1562      14970
  1950X:    1035      18780

Remember that the M1 Max has 8 high performance and 2 efficiency cores vs. the 16 cores of the 1950x. Again, this is a pretty convincing victory - 1.5x single core perf in a laptop - this is not a HEDT part.

[1] https://www.cpu-monkey.com/en/cpu-amd_ryzen_threadripper_195...

[2] https://www.cpu-monkey.com/en/cpu-apple_m1_max