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Intel Core i9 12900KF

Intel Core i9 12900KF

Codename: Alder Lake Released: October 27, 2021
Total Cores
16
Physical Cores
Total Threads
24
Concurrent Threads
Boost Clock
5100 MHz
Max Turbo Frequency

Technical Highlights

Vendor : Intel
Socket : LGA-1700
Manufacturing Process : 10 nm
TDP (PL1) : 125 W

About this CPU

Alder Lake desktop CPU with 16 cores and 24 threads, up to 5200 MHz Turbo Boost, an unlocked multiplier and no integrated graphics.

Last updated: September 11, 2026
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Overall Score Of Intel Core i9 12900KF

This summarizes how Intel Core i9 12900KF scores across single-core performance, multi-core performance, CPU architecture, memory architecture, and energy efficiency.

75
Overall
Single-Core Performance
74
Multi-Core Performance
69
CPU Architecture
62
Memory Architecture
58
Energy Efficiency
76

General Information of Intel Core i9 12900KF

CPU Name

Intel Core i9 12900KF

Vendor

Intel

Release Date

October 27, 2021

Generation

12th Gen Intel Core

Type

Desktop

Instruction Set

x86-64

Codename

Alder Lake

Foundry

Intel

Package and Thermals of Intel Core i9 12900KF

Manufacturing Process

10 nm

18% of the current best Manufacturing Process score

Max Temp (TJMax)

Top tier

100 C

91% of the current best Max Temp (TJMax) score

TDP (PL1)

125 W

Max. Boost TDP (PL2)

241 W

Socket

LGA-1700

CPU Cores of Intel Core i9 12900KF

Performance Cores

P-Cores

8

22% of the current best P-Cores score

P-Threads

16

44% of the current best P-Threads score

P-Core Base Frequency

Good

3200 MHz

68% of the current best P-Core Base Frequency score

P-Core Turbo Frequency

Excellent

5100 MHz

82% of the current best P-Core Turbo Frequency score

Efficient Cores

E-Cores

8

50% of the current best E-Cores score

E-Threads

Good

8

50% of the current best E-Threads score

E-Core Base Frequency

2400 MHz

55% of the current best E-Core Base Frequency score

E-Core Turbo Frequency

Excellent

3900 MHz

83% of the current best E-Core Turbo Frequency score

Total

Total Cores

Good

16

44% of the current best Total Cores score

Total Threads

Excellent

24

67% of the current best Total Threads score

Multiplier

Unlocked

Bus Frequency

Top tier

100 MHz

100% of the current best Bus Frequency score

Unlocked Multiplier

Yes

L1 Cache

64 KB

13% of the current best L1 Cache score

L2 Cache

14 MB

22% of the current best L2 Cache score

L3 Cache

30 MB

16% of the current best L3 Cache score

NPU

No

Memory Support of Intel Core i9 12900KF

Memory Types

Top tier

DDR5-4800, DDR4-3200

90% of the current best Memory Types score

Max Memory Size

Good

128 GB

25% of the current best Max Memory Size score

Memory Channels

2

3% of the current best Memory Channels score

Max Memory Bandwidth

76.8 GB/s

6% of the current best Max Memory Bandwidth score

ECC Support

No

Technologies

Compute: ABM, ADX, BMI1, BMI2, CLMUL, F16C, SHA - Performance: EIST, TBT 2.0, TBT 3.0, TSX - Virtualization: VT-d, VT-x - Security: RDRAND, TXT, XD bit

Benchmarks of Intel Core i9 12900KF

Geekbench V6

Benchmark results for this category.

Multi-Core:
16,140 (84th)
38% of max score
Single-Core:
2,686
57% of max score
File Compression:
1,150
43% of max score
Clang Compression:
141
5% of max score
HTML5 Browser:
363
14% of max score
PDF Renderer:
476
18% of max score
Text Processing:
275
10% of max score
Background Blur:
67
2% of max score
Photo Processing:
139
5% of max score
Ray Tracing:
34
1% of max score

PassMark CPU

Benchmark results for this category.

Multi-Core:
40,499 (66th)
56% of max score
Single-Core:
4,119
69% of max score
Good
Integer Math:
138 MOps/Sec
1% of max score
Floating Point:
105 MOps/Sec
1% of max score
Prime Numbers:
138 Million Primes/Sec
13% of max score
String Sorting:
57 Thousand Strings/Sec
1% of max score
Data Encryption:
29 MBytes/Sec
1% of max score
Data Compression:
533 KBytes/Sec
1% of max score
Physics:
2,054 Frames/Sec
23% of max score
Extended Instructions:
33 Million Matrices/Sec
1% of max score

Cinebench 2024

Benchmark results for this category.

Multi-Core:
1,463 (69th)
37% of max score
Single-Core:
115
51% of max score

Blender

Benchmark results for this category.

Render Score:
366 (51st)
49% of max score

Performance Charts Of Intel Core i9 12900KF

These charts show how Intel Core i9 12900KF balances CPU benchmark performance and relative score versus current market leaders.

Performance Radar Chart

Category scores overview (0 to 100)
Intel Core i9 12900KF

Performance Benchmarks

Grey is the market top value. Colored bar is Intel Core i9 12900KF.
Market Top
Intel Core i9 12900KF

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Frequently Asked Questions about Intel Core i9 12900KF

The Intel Core i9 12900KF was officially released in October 27, 2021, targeting the Desktop market.

The Intel Core i9 12900KF is equipped with 16 cores and 24 threads, making it a powerhouse for heavily threaded professional workloads like video editing and 3D rendering.

The Intel Core i9 12900KF uses the LGA-1700 socket. This is a critical specification for compatibility, as it dictates which motherboards can support this processor.

The Intel Core i9 12900KF operates at a base clock frequency of 3200 MHz for its performance cores (and 2400 MHz for E-cores). This is the speed the processor runs at under normal, non-intensive workloads.

The Intel Core i9 12900KF can reach a maximum turbo boost frequency of 5100 MHz on its performance cores (and 3900 MHz for E-cores). This allows the CPU to dynamically increase its speed to handle demanding tasks and gaming workloads.

The Intel Core i9 12900KF has a maximum junction temperature (TjMax) of 100 C. This is the maximum temperature possible before the processor initiates thermal throttling or shuts down to prevent permanent damage.

The Intel Core i9 12900KF achieves a multi-core score of 1,463 on Cinebench 2024, reflecting its capability in multi-threaded creative and rendering applications.

The Intel Core i9 12900KF scores 2,686 on the Geekbench v6 single-core test, indicating how snappy and responsive it will feel in everyday applications and most games.

With an overall performance rating of 75%, the Intel Core i9 12900KF is considered a high-performance processor in our comprehensive CPU database.

The Intel Core i9 12900KF features 30 MB of L3 cache. A larger cache helps the processor access frequently used data faster, which can significantly boost gaming performance.

The Intel Core i9 12900KF has a base power consumption (TDP) of 125 W. This value is important for choosing an adequate CPU cooler and determining your overall system power requirements.

The Intel Core i9 12900KF supports DDR5-4800, DDR4-3200 memory, dictating the RAM speeds and capacities you can pair with this processor.

The Intel Core i9 12900KF does not have integrated graphics and requires a dedicated graphics card.

Disclaimer: Specs, pricing, and benchmarks are sourced from official manufacturer data and verified test results. While we strive for precision, product details and pricing may change. Comparigon may earn an affiliate commission on qualifying purchases.