CPUDesktopReleased Mar 30, 2021

Intel Core i9-11900K

8C/16T · 5.3 GHz · 125 W

The Core i9-11900K is the flagship of Intel's 11th Gen Rocket Lake-S desktop family, which went on sale on March 30, 2021 at a launch price of 539 USD. It back-ports the Cypress Cove core design to 14 nm, giving eight cores and sixteen threads, AVX-512 support and PCIe 4.0 on the LGA 1200 platform, and reaches 5.3 GHz with Thermal Velocity Boost. It has an unlocked multiplier for overclocking and Intel UHD Graphics 750 based on the Xe architecture.

General

Manufacturer: Intel
Model: Intel Core i9-11900K
Segment: Desktop
Generation: 11th Gen Core
Codename: Rocket Lake-S
Architecture: x86_64
Microarchitecture: Rocket Lake (Cypress Cove)
Release date: Mar 30, 2021
Price: $593Search on Amazon

Cores & clocks

Cores / threads: 8 cores / 16 threads
Base clock: 3.50 GHz
Boost clock: 5.30 GHz
TDP (design W): 125 W
Unlocked: ✓ Yes
L2 cache: 4 MB
L3 cache: 16 MB
Technology (nm): 14 nm
14 nm

Platform

Socket: FCLGA1200
2-CPU (multi-socket): ✕ No
Integrated GPU: Intel UHD Graphics 750
Clock: 1,300 MHz
Memory type: DDR4-3200
2-channel
Memory size: Up to 128 GB
ECC memory: ✕ No
PCIe: PCIe 4.0 (20 lanes)

Instructions & AI

Instruction extensions: SSE4.1SSE4.2AVX2AVX-512
NPU: None

OS support

Windows: Windows 10Windows 11 24H2Windows 11 25H2Windows 11 26H2
ChromeOS: ChromeOS
Linux: UbuntuFedoraArch Linux
Notes: Covered by Microsoft's supported-processor lists for Windows 11 24H2 and 25H2 under 11th Generation Intel Core processors; Windows 11 26H2 keeps the same hardware requirements. Windows 10 and mainstream Linux distributions are supported, and ChromeOS Flex installs on generic x86-64 hardware.

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