It's crazy how unreliable CPUs have become in the last 5 years or so, both AMD and Intel. And it seems they're all running at their limit from the factory, whereas 10-20 years ago they usually had ample headroom for overclocking.
I've never overclocked anything and I've never felt I've missed out in any way. I really can't imagine spending even one minute trying to squeeze 5% or whatnot tweaking voltages and dealing with plumbing and roaring fans. I want to use the machine, not hotrod it.
I would rather Intel et al. leave a few percent "on the table" and sell things that work, for years on end without failure and without a lot of care and feeding. Lately it looks like a crapshoot trying to identify components that don't kill themselves.
This is about sane, stable defaults. If you want the extra performance far beyond the CPUs sweet-spot it should be made explicit you're forfeiting the stability headrooms.
Well, that's the issue, isn't it? Both Intel and AMD (resp. their board partners) had issues in recent times stemming from the increasingly aggressive push to the limit for those last few %.
That sounds terrible.
For example, various brands of motherboards are / were known to basically blow up AMD CPUs when using AMP/XMP, with the root cause being that they jacked an uncore rail way up. Many people claimed they did this to improve stability, but overclockers now that that rail has a sweet spot for stability and they went way beyond it (so much so that the actual silicon failed and burned a hole in itself with some low-ish probability).
https://www.computerbase.de/artikel/prozessoren/amd-ryzen-79...
Actually almost everything what you wrote is not true, and commenter above already sent you some links.
7800X3D is the GOAT, very power efficient and cool.
And even if could push it higher, they run very hot compared to other CPUs at the same power usage as a combination of AMD's very thick IHS, the compute chiplets being small/power dense and 7000 series X3D cache being on top of the compute chiplet unlike 9000 series that has it on the bottom.
The 9800x3d limited in the same way will be both mildly more power efficient from faster cores and run cooler because of the cache location. The only reason it's hotter is that it's allowed to use significantly more power, usually up to 150w stock, for which you'd have to remove the IHS on the 7800X3D if you didn't want to see magic smoke