One telling benchmark is anandtech web browser stuff https://www.anandtech.com/show/15785/the-intel-comet-lake-review-skylake-we-go-again/10.Parts of it are included already, but mostly are coming with the Windows 2004 kernel.
That is also why you see a 5%-6% core clock advantage over the 9900K been evaporated to handful fps.
Intel used to be in clear lead there until security mitigations hit. Note how 9900K loses to 9600K and 9700K, because those have no security hole of HT.
Now 10900K is on top again, but I can't tell if its lead over 9900K is due to different hardware used and higher clocks or because mitigations no longer penalise it as much.