Everyone here is missing the most important concept in semiconductor manufacturing: binning and yield [1]. They're interconnected.

It's not like Intel can make 5.4 GHz chips for days on. It doesn't work that way. Ofcourse they can manufacture processors capable of some ridiculous 6.0 GHz (not accounting for power consumption)... but that would be 0.1% yield. You cannot run a factory like this.

[1] https://www.techspot.com/article/2039-chip-binning/