https://www.theregister.co.uk/2017/08/21/intel_core_i5_i7_8th_gen_processors/

Intel has wheeled out its 8th Generation Core processors, a refresh of its Core i5 and i7 chips, and their base specs wouldn’t look out of place in a desktop PC circa 2012.

Cutting through the verbiage in this morning's announcement from Chipzilla, we learn that the mobile-focused 8th Generation Core i7 processors (the i7-8650U and i7-8550U) boast a base clock frequency of 1.9GHz and 1.8GHz respectively, with the i5s powering through at a rather asthmatic 1.7GHz and 1.6GHz.