Whenever a new generation of processors is launched, it is the beginning of the overclocking competition. At the press conference, Intel has revealed that the 13th generation Raptor Lake processor is very good and has better overclocking than the previous generation.The former ROG team has supercharged the i9-13900K to a terrifying figure of 8.81GHzBut this still doesn’t satisfy them. Recently, they challenged the unprecedented 9GHz, and the result was really successful! i9-13900K has also become the first processor in history to exceed 9GHz.

The first world record to exceed 9GHz! Overclockers successfully overclocked the i9-13900K to over 9GHz clock speed
A few months ago, Intel i9-13900K broke the 8.79GHz of AMD FX-8370, which had been held for more than 8 years, and won the first place in the rankings with 8.81GHz. However, this is not the limit of i9-13900K. Earlier, the ROG team announced on Twitter that ASUS overclockers successfully surpassed the 9GHz boundary and overclocked i9-13900K to 9008.82MHz. The ultimate clock, this is also the world’s first CPU processor with a clock speed exceeding 9GHz.
It's over 9000!!!!
ASUS overclockers broke the 9 GHz barrier, smashing their own previous CPU frequency record.
With that, the ROG Maximus Z790 Apex has 14 World Records, and 29 GFP scores, making it the Z790 record-breaking champion.🏆 @intel @IntelGaming pic.twitter.com/hVs4uJTqdb
— ROG Global (@ASUS_ROG) December 21, 2022
The matching motherboard is the ASUS ROG Maximus Z790 APEX. This is one of the best overclocking motherboards currently. The heat dissipation part uses LN2 liquid nitrogen. It can also be seen from the video that they failed in the first attempt, and the screen turned black soon after. Then they lowered the CPU temperature to about -250.2°C and tried again, and successfully crossed the 9GHz boundary, twice:

Another thing to note is that this is not the full core clock, but one of the eight P-cores, and the E-core part is all disabled.
This overclocking result has also been shared HWBOT On the website:

For detailed overclocking process, you can watch the SkatterBencher video. ASUS also mentioned that so far, ROG Maximus Z790 Apex has broken 14 world records, with a 29GFP score:
At the same time, Intel’s official YouTube channel also uploaded an interview video, which shows that this overclocking content should be based on mutual cooperation:
Since the Intel i9-13900K can reach the 9GHz figure, people are increasingly looking forward to the i9-13900KS special edition that will be launched next year. The default clock is 6GHz, which may set a more terrifying record.
About Intel i9-13900KS specifications:
Intel i9-13900KS will become the new Raptor Lake flagship processor, equipped with 24 cores and 32 threads, with 8 P-cores and 16 E-cores, and Turbo Boost Max also reaches 5.8GHz. There is also a 68MB cache and 150W PL1, which can reach up to 253W. There should also be an extreme performance mode configuration.
Source: KOCPC Chinese