good PR tricks - they just sign NDA agreements with different reviewers with slightly different embargo lift dates.
sadly, the same can't be said for hundreds/thousands other much smaller reviewers.
See the url in my replies.
Maybe the China/Asia review briefings or so are going with a different date based on different retail availability or so? Hadn't heard of some reviewers getting a different embargo date, typically see that usually only for different geo availability or if getting a sample from a motherboard OEM / other partner and not the CPU company review embargo.
Anyway, enough ranting, nobody sane decides on these 0day benchmarks but waits at least few weeks for overall conclusions, quirks, not so common issues etc. And even better is to wait few months for more stable motherboards and drivers, better availability of compatible RAM etc.
The source of the claim is from here (in Chinese) -
https://www.chiphell.com/thread-2445527-1-4.html
chiphell is the largest computer parts review site in China, and that nApoleon guy posting this two batches of review story is the owner of the site.
In a more recent thread, he confirmed again that his site has completed their own review and he had read it, yet they are not allowed to post it until tomorrow.
https://www.chiphell.com/thread-2446331-1-1.html
In a separate thread he posted today, he mentioned that based on their tests, the temp of the zen4 chip is always 95 degrees celsius - no matter whether you use a shitty cheap cooler or a fancy kick ass one.