What will be the clock when single threaded? Can we get above 5GHz finally?
We have been over 5ghz for a decade, it just takes ln2 to do it. We aren't going to see ludicrously high clock rates for the foreseeable future. There are a lot of compounding factors as to why, but the biggest ones are the pressure for efficiency driving designs that aren't dumping higher and higher voltage to get frequency, the diminishing returns on voltage vs frequency (see Ryzen, where a 20% improvement in clock…
Non-x86 systems went over 5 GHz on air many years ago, e.g. IBM POWER.