Yes, that's interesting! And what's even more interesting is that if you look at the release schedule, all the low power & low frequency models are released first. Then the other models are released at later times, in order of increasing power & frequency.
And the time difference between the first released product (Y-model) and the last model (H/K-models) is ~9 months (!).
You could argue that this is because mobile gets priority nowadays, if production capacity is limited. But this is an unusually large time difference between release of models, something we're not used to seeing. And all the top end mobile/laptop chips will be released last, which is also kind of strange, if mobile/laptop should be prioritized.
So I'm instead suspecting that this could mean that Intel are having problems reaching high frequencies at 14 nm, and are hoping to perfect the process to allow for higher frequencies as time passes. :hmm: