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Intel Core i9 11900K
Intel Desktop CPU

Intel Core i9 11900K

54B
Cores8
Threads16
Boost Clock5.3 GHz
TDP125 W
SocketLGA-1200
Process14 nm
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Benchmarks

Cinebench 2024 Single-Core95
Cinebench 2024 Multi-Core819
TDP125 W
Cache L316MB
Cinebench 2024 (Single)95
Cinebench 2024 (Multi)819
Geekbench 6 (Single-Core)2494
Geekbench 6 (Multi-Core)11,196
Passmark CPU (Single-Core)3501
Passmark CPU (Multi-Core)24,906
Blender CPU213.02
iGPU FLOPS0.7 TFLOPS

Full specifications

GeekBench v6

File compression
862.2 MB/sec
Clang compilation
89.5 Klines/sec
HTML 5 Browser
228.1 pages/sec
PDF Renderer
331.5 Mpixels/sec
Text processing
241.7 pages/sec
Background blur
54.3 images/sec
Photo processing
89.4 images/sec
Ray tracing
20.7 Mpixels/sec

PassMark

Integer math
88.9 GOps/sec
Floating point math
52.7 GOps/sec
Find prime numbers
67M Primes/sec
Random string sorting
37.9M Strings/sec
Data encryption
15.8 GBytes/sec
Data compression
328.6 MBytes/sec
Physics
1047 Frames/sec
Extended instructions
23.3B Matrices/sec

Performance Per Watt

Cinebench 2024 / Watt
6.6 PPW
Geekbench 6 Multi / Watt
89.6 PPW
Passmark CPU Mark / Watt
199.2 PPW
Blender / Watt
1.7 PPW

General

Vendor
Intel
Released
March 16, 2021
Type
Desktop
Instruction Set
x86-64
Codename
Rocket Lake
Model number
i9-11900K
Integrated GPU
UHD Graphics 750
AMD Equivalent
- AMD Ryzen 9 5900X
Successor
- Intel Core Ultra 9 285K

CPU

P-Cores
8
P-Threads
16
Base Frequency (P)
3.5 GHz
Turbo Boost Frequency (P)
5.3 GHz
Total Cores
8
Total Threads
16
Bus Frequency
100 MHz
Multiplier
35x
Bus Bandwidth
8 GT/s
L1 Cache
64K (per core)
L2 Cache
512K (per core)
L3 Cache
16MB (shared)
Unlocked Multiplier
Yes

Package

Fabrication Process
14 nm
TDP (PL1)
125 W
Socket
LGA-1200
Peak Temperature
100°C

iGPU

Integrated Graphics
Intel UHD Graphics 750
GPU Base Clock
300 MHz
GPU Boost Clock
1300 MHz
Shading Units
256
TMUs
64
ROPs
32
Execution Units
32
TGP
15 W

Memory Support

Memory Types
- DDR4-3200
Max. Memory Size
128 GB
Memory Channels
2
Max. Memory Bandwidth
50 GB/s
ECC Support
No

Misc

Official Site
Intel Core i9 11900K official page
PCI Express Version
4.0
PCI Express Lanes
20
Technologies
- Compute: ABM, ADX, AVX-512F, BMI1, BMI2, CLMUL, F16C, SHA - Performance: EIST, TBT 2.0, TBT 3.0, TSX, TVB - Virtualization: VT-d, VT-x - Security: RDRAND, TXT, XD bit

Specifications compiled from NanoReview. Last updated 2026-09-29.

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