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Overclocked Intel Core i9-12900K produces astonishing single-thread score on CPU-Z with its P-cores dialed up to 6.3 GHz

The Intel Core i9-12900K processor has a P-core base rate of 3.2 GHz. (Image source: Intel/Unsplash - edited)
The Intel Core i9-12900K processor has a P-core base rate of 3.2 GHz. (Image source: Intel/Unsplash - edited)
The Intel Core i9-12900K has been spotted on CPU-Z Validator once again. This time around, the Alder Lake hybrid processor amassed an amazing single-thread score that even surpassed recent efforts by the same SKU. The P-cores in the i9-12900K were measured reaching up to 6,300 MHz. The multithread score paid the price for such single-thread magnificence.

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Recently there were sightings of the Intel Core i9-12900K on CPU-Z Validator revealing the Alder Lake part collecting impressive single-thread benchmark scores of 813 points and 834 points. Both of these are remarkable results that place the Zen 3 Ryzen 9 parts from AMD and the Rocket Lake i9-11900K way behind in the runner-up spots. However, this latest result for the i9-12900K is quite astonishing, with the final score resting at 981 points.

The score in this particular test run is practically off CPU-Z Validator’s charts such is the extent of the lead over the Ryzen 9 5900X (648 points) and i9-11900K (682 points). This particular die version of the i9-12900K has 16 cores and 24 threads, with the CPU cores being made up of eight performance cores (P-cores) and eight efficiency cores (E-cores). The “slowest” P-core recorded an overclocked frequency of 5,500 MHz while four of the others produced 6,300 MHz.

Of course, overclocked synthetic benchmark results are mostly just curios, to see what processor can call itself the fastest in the purest of terms. The TDP for the i9-12900K is 125 W with turbo requiring 241 W, and there would have been a bespoke cooling system in place for this particular Alder Lake overclocking experiment. While the single-thread score is simply stellar (+43.84% over the i9-11900K), the multithread score ends up being a paltry 2,006 points as only two threads are utilized.

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Intel Core i9-12900K. (Image source: CPU-Z Validator)
Intel Core i9-12900K. (Image source: CPU-Z Validator)
Intel Core i9-12900K. (Image source: CPU-Z Validator)
Intel Core i9-12900K. (Image source: CPU-Z Validator)
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Daniel R Deakin
Daniel R Deakin - Managing Editor News - 2573 articles published on Notebookcheck since 2012
My interest in technology began after I was presented with an Atari 800XL home computer in the mid-1980s. I especially enjoy writing about technological advances, compelling rumors, and intriguing tech-related leaks. I have a degree in International Relations and Strategic Studies and count my family, reading, writing, and travel as the main passions of my life. I have been with Notebookcheck since 2012.
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2021 11 > Overclocked Intel Core i9-12900K produces astonishing single-thread score on CPU-Z with its P-cores dialed up to 6.3 GHz
Daniel R Deakin, 2021-11- 2 (Update: 2021-11- 2)