if i choose intel i7 14700K, instead of i5 14600K- it is bad then? intel haven't fix it still?
Even before the stability issue, Raptor Lake wasn't great to begin with: their CPUs used a tonne more wattage to hit the frequencies needed to make it competitive with AMD. Intel was really trying to push their technologically inferior CPUs to the absolute limit, and soon after release people started talking about stability issues, e.g. here:
I noticed some reports about degrading i9 13900K and KF processors. I experienced this problem myself, when I ran it at 6 GHz, light load (3 threads of Cinebench), at acceptable temperature and non extreme voltage. After only few minutes it crashed, and then it could not run even at stock...
forums.anandtech.com
Assuming that the latest fix (early October) has actually fixed the problem (it's not the first attempt, they still weren't certain of the problem in August), it's taken Intel two years to get on top of this problem! Intel is in danger of going under, and the US government is involved in finding a buyer.
A guy on imgur posted yesterday about how Intel is weaselling their way out of a warranty return:
As a comparison, AMD had a similar issue very briefly with the 7000 series, IIRC they sent out an AGESA update within a month or so, problem fixed. I bought a 7800X3D about six months after "job done". I certainly wouldn't have done that if I wasn't confident that the problem was fixed, the last thing I want is a new computer that freezes up half the time and maybe the CPU getting toasted.