Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
High clock speed is bad in a sense, because you run out of headroom. You can’t really do a 10 GHz CPU (as Intel found out ca. 2000), and higher clock also means worse thermals.

An M4 that achieves the same scores with lower clock speed would be preferable.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.