Which I expected the bigger charger and thicker and heavier enclosure housing a new cooling system to accomplish, thus leading to better (sustained) single-core performance. I would have preferred a MacBook Air (a year ago) but since the SSD size was restricted to 2 TB I waited, and it would have been nice if the delay and added bulk meant better single-core performance. As I said though, I’m only mildly surprised, and only a little annoyed.
I don’t think the processors should be judged on clock speed, they should be judged on performance. It seems reasonable to me that the highest-end machine would have better sustained single-core performance than the most basic one. Like it or not, there are lots of common tasks that for whatever reason are not multithreaded, and where faster execution is beneficial.
I am sure I will be perfectly happy with what I have ordered, but the my gut feeling about paying $5000 for it would have been better if it had been able to (single-core) outperform an iPad.