Two years ago when I got the Lenovo e590 (Intel Core i5-8265U), I benchmarked running the unit tests of my project on it. (though I didn't really intend on using the e590 for development) I compared against my old desktop from 2010 (1st-gen Core i5-750).

Turns out that the old desktop won by a solid 10% margin! A whole decade of new Intel generations still can't make up for the disadvantage of using a mobile CPU.

P.S. The e590 barely survived 2 years and is dead now (broken USB-C charging port).