IIRC 9 GHz was broken a year or so ago: https://www.pcmag.com/news/intels-core-i9-13900k-processor-gets-overclocked-to-9ghz https://www.pcmag.com/news/intels-co

IIRC 9 GHz was broken a year or so ago: https://www.pcmag.com/news/intels-core-i9-13900k-processor-gets-overclocked-to-9ghz https://www.pcmag.com/news/intels-core-i9-13900k-processor-g...