I would say the clock speeds are excellent. AMD improved IPC enough that the clock speed doesn't need to be extreme - Look here for the efficiency disparity between Intel and AMD processors. More importantly, the process has little to do with maximum clock speed, particularly in the comparison between 7nm and 12nm/14nm. The uarch and density elected to be used by AMD is the dominant factor, and they have absolutely smashed it out of the park in terms of die size and performance. Also keep in mind these dies have multiple use cases from personal to enterprise processors, so they are never going to be clock speed optimised.