Core i9 12900K

Specifications

• Cores16
• Threads24
• Base clock3.2 GHz
• Boost clockUp to 5.2 GHz
• L3 cache30 MB
• SocketLGA1700
• TDP125 W
• Peak power241 W

Specifications: Intel (manufacturer, accessed 2026-10-23).

About this processor

Core i9 12900K is a Intel processor with 16 cores and 24 threads for the LGA1700 socket. It scores 74.9 on our CPU gaming index (Ryzen 7 9800X3D = 100) — rank 25 of 45 processors in the catalog.

Measured game data

We hold independently measured benchmark data with this processor in 2 of the nine games in our measured set:

• Elden Ring
• Starfield

The measured results live on the game and pairing pages — this page sticks to specifications.

Pairings

See the Core i9 12900K pairing guide for balanced graphics-card matches at each resolution, or run a specific combination in the calculator.