At least on the desktop I would assume if this is true.
Source - https://videocardz.com/72817/intel-coffelake-s-8th-gen-desktop-and-z370-controversy
More stuff at link about their reasoning for Coffeelake-S been locked to 300 series which we know is partly BS.
Source - https://videocardz.com/72817/intel-coffelake-s-8th-gen-desktop-and-z370-controversy
Intel decided that starting from Coffeelake-S launch, they will not be releasing detailed information on turbo clock speeds per each core. As you know different frequency will be applied once more cores are in use. Basically, the more cores are in use, the lower the frequency.
Such an obvious thing to know, especially when you are a reviewer, but heres what Intel said when they were asked for a table of clock speeds for Coffelake-S:
Intel said:We wont be sharing these details going forward at this point anymore.
If you think thats strange, then let me add that Intel even refused to share die sizes of Coffeelake-S.
More stuff at link about their reasoning for Coffeelake-S been locked to 300 series which we know is partly BS.