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Intel Core i9-12900K Alder Lake CPU specs leak online

Intel Core i9-11900K review
Intel Core i9-11900K review (Image credit: Harish Jonnalagadda / Windows Central)

What you need to know

  • A retail listing reveals details about the Intel Core i9-12900K processor.
  • The CPU has a 3.2GHz operating frequency and a turbo speed of 5.2GHz.
  • It has 16 cores and 24 threads, according to the listing.
  • The Intel Core i9-12900K will apparently cost $670 and launch on November 4, 2021.

Leaks continue to appear for the upcoming Intel Core i9-12900K CPU. Earlier this week, a Reddit user managed to purchase a couple of the chips even though they haven't been officially announced. Now, a retail listing from Micro Center includes details of the flagship Alder Lake processor (via The Verge). The listing suggests that the chip will cost $670 and start shipping on November 4, 2021.

According to the listing, the Core i9-12900K has a 3.2GHz operating frequency and a turbo speed of 5.2GHz. It's said to have 16 cores, 24 threads, and 30MB of L3 cache. The spec table shows a thermal power of 125W, support for DDR5 memory, and PCIe Gen 5. The flagship processor will be compatible with the Intel Z690, Intel H670, Intel B660, and Intel H610 motherboards.

The overview of the CPU from the listing reads:

12th Gen Intel Core i9-12900K unlocked desktop processor. Featuring Intel Turbo Boost Max Technology 3.0 and PCIe Gen 5.0 & 4.0 support, DDR5 and DDR4 support, unlocked 12th Gen Intel Core desktop processors are optimized for enthusiast gamers and serious creators and help deliver high performance overclocking for an added boost. Thermal solution NOT included in the box. Compatible with 600 series chipset based motherboards.

The details in this listing line up with previous leaks as well as Intel's own preview of its Alder Lake chips at the company's Architecture Day in August 2021.

Sean Endicott
Sean Endicott

Sean Endicott is the news writer for Windows Central. If it runs Windows, is made by Microsoft, or has anything to do with either, he's on it. Sean's been with Windows Central since 2017 and is also our resident app expert. If you have a news tip or an app to review, hit him up at sean.endicott@futurenet.com.

4 Comments
  • This seems really weird. Are hey actually doing 8 HyperThreaded cores and 6 that don't have it? I didn't even know that was possible.
  • Nobody can math... 8 regular cores and 8 hyperthreaded (8c+8c/16t = 16c/24t)... That'd be 24. But I thought maybe it was a typo, cuz that seems to not really be all that great after all.. hoping it's 16/32. Also, DDR5 support AND DDR4? I think meaning it'll depend on the motherboard which dimms are available? And PCIe 5.0?? Is that only for m.2/NVMe?
  • The 8 performance cores will have Hyperthreading and the 8 efficient cores won't.
  • What about processor size.