Hi, you seem to have been disconnected from the current state of affairs in Intel silicon development, so here's a quick refresh from
Intel themselves:
If you still want to push some buttons around here you should start predicting the meteoric rise of their 7nm node, anything else will just make people confuse you with some lost time traveler from the past decade.
Here's some more reading material to further improve your game.
They've fixed
something with Tiger Lake, and yields have significantly improved as well as per their latest statements (iirc they've said something that sounds kind of like roughly 2x ICL-U yields on launch).
Intel might actually be onto something in the next couple of years. I don't see 5GHz happening again, but high-4GHz (4.7-4.8GHz) by ADL-S should be doable.
As for the other guy who said 4.7GHz on TGL-U though, now THAT's a meme if I ever saw one. Nah, 4.5GHz is probably the top and to be completely honest, it's a pretty darn good place to be after Ice Lake, to say the least. Maybe they'll bin or TVB their way to 4.7GHz, but lets be real, that's not feasible for most devices outside fo microbursts. It's as much of an achievement as the 4.7GHz on the 3950X for the most part.
(Slightly related side note, I'm really hoping AMD define boost clocks for Vermeer like they did with Renoir - all the R7s and up on Renoir can peak at 100mhz over their boost clocks, and do a good job at sustaining max boost - or in some cases, higher - in SSE loads.)