"Multicore enhancement" has been confirmed to be default settings in bios (like 8700K).Following unconsistent reviews about power consumption of core i9 9900K, I guess "ninja" settings (i mean default) from motherboards were freeing all power restrictions of this cpu that could run pretty hot..
I was thinking of similar "multicore enhancement" from Asus that forces all cores to operates at same speed by default.
By the way, I quite like this generation of intel cpu, even if they will struggle in pure sff cases where cpu cooling is pretty light..
I'll wait for mid 2019 to decide on my future cpu platform (Zen 2 vs 10nm Intel?)...2019 will be so interesting in cpu market...
Thus, default settings for motherboard manufacturer means heavy overclocking...
Linus tech tips tested (confirmed by several others reviewers) with mutlicore enhancement disabled and found completely fine temperature (58°c)...thus most of reviewers, despite knowing this, tested overclocked 9900K...always mentionning Intel is not respecting its TDP of 95W...whereas issue was coming from Motherboard manufacturers...
For me it's exactly like phone manufacturers when they release all thermal constraints while a benchmark is running...dummies behaviour..."Who has the biggest?!"
At the end, 9900K is worth to be tested inside SFF, without multicore enhancement of course..