Intel Core i9-12900K overclocked to 5.2 GHz on all Performance cores reportedly consumes 330W of power

Published: Oct 20th 2021, 08:49 GMT   Comments

Please note that this post is tagged as a rumor.

Overclocked Intel Core i9-12900K outperforms Ryzen 9 5950X in CPUZ multi-thread test

Bilibili content creator 热心市民描边怪 published the results of the upcoming Alder Lake Core i9 processor with all ‘big’ cores overclocked to 5.2 GHz.

According to the screenshot from the CPU-Z benchmark, the Core i9-12900K scored 851 points in the single-thread test and 11987 points in the multi-thread. This is just a small fraction higher than previously reported results, but it is the first time the CPU has outperformed stock Ryzen 9 5950X in the multi-thread test.

Intel Core i9-12900K @ 5.2 GHz, Source: Bilibili

To achieve these results, the leaker overclocked all Golden Cove/Performance/Big cores to 5.2 GHz while he kept Gracemont/Efficient/Atom/Small cores at stock 3.7 GHz. Intel 12th Gen Core series features a new overclocking setting that will allow users to modify the clocks for each type of core, in this case only the big cores were modified.

The leaker claims that the Core i9-12900K with a clock speed of 5.2 GHz and voltage of 1.385V has a power consumption of 330W, which is 2.64x more than the ‘stock’ PL1 value of 125W. Unfortunately, no proof of this power use has been provided.

Intel Core i9-12900K @ 5.2 GHz, Source: Bilibili

There is also a video from other Bilibili creators: 結城安穗-YuuKi_AnS and bo啵啵猫, who made a video showcasing their engineering sample up close. They reiterate previously leaked results in their own charts comparing the i9-12900K to the current flagship from 11th Gen series i9-11900K and AMD Zen3 flagship Ryzen 9 5950X.

Intel Core i9-12900K ES, Source: Bilibili

Unfortunately, neither the motherboard model nor the memory technology used (DDR5 or DDR4) is shown in the screenshots. However, we can quite clearly see that the CPU-Z software correctly reads the specifications and the CPU name string from this engineering sample. While the S-Spec string has been scratched off, we can guess that this actually the same sample that has already been pictured by YuuKi_AnS earlier this month.

The Core i9-12900K QX7H sample boosts up to 5.0 GHz with a maximum boost reported at 5.1 GHz, but it is expected that the retail/qualification sample will have a maximum boost up to 5.3 GHz. The CPU is a 16-core and 24-thread hybrid processor featuring 8 Golden Cove/Performance/Big cores and 8 Gracemont/Efficient/Small cores, representing the flagship specification from all Alder Lake silicon that is expected to launch.

The i9-12900K scores 827.7 and 11456.5 points in the CPU-Z benchmark. In Cinebench R23, i9-12900K reaches 2007 points in single-core test and 27461 points in multi-core:

Intel Core i9-12900K ES, Source: Bilibili

Intel is now confirmed to launch its 12th Gen Core series on November 4th. The launch will include six K and KF-Series SKUs along with Intel Z690 based motherboards.

Intel 12th Gen Core Series (Alder Lake-S)
VideoCardzCores / ThreadsCore Type1-2 Core BoostAll-Core BoostTDP
P-Core (Big)
5.3 GHz
5.0 GHz
E-Core (Small)
3.9 GHz
3.7 GHz
P-Core (Big)
5.0 GHz
4.7 GHz
E-Core (Small)
3.8 GHz
3.6 GHz
P-Core (Big)
4.9 GHz
4.5 GHz
E-Core (Small)
3.6 GHz
3.4 GHz

Source: Bilibili #1, Bilibili #2 via @9550pro

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