@PeterCxy Depends on several details of your setup from the Mainboard to your Power Supply, Your RAM and OFC the CPU in question.

So don't take Numbers from i.e. #LinusTech for granted as a lot of reviewers will get #GoldenSample|s that have been selected by the manufacturer...

https://caseking.de even sold [not shure if still selling] Chips they verified to run stable at certain Overclocks at a markup...