Intel Core i9-11900F vs Intel Core i9-11900KF

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CPU comparison with benchmarks


Intel Core i9-11900F CPU1 vs CPU2 Intel Core i9-11900KF
Intel Core i9-11900F Intel Core i9-11900KF

CPU comparison

Intel Core i9-11900F or Intel Core i9-11900KF - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Core i9-11900F has 8 cores with 16 threads and clocks with a maximum frequency of 5.20 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Core i9-11900F was released in Q1/2021.

The Intel Core i9-11900KF has 8 cores with 16 threads and clocks with a maximum frequency of 5.30 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The Intel Core i9-11900KF was released in Q1/2021.
Intel Core i9 (78) Family Intel Core i9 (78)
Intel Core i 11000 (22) CPU group Intel Core i 11000 (22)
11 Generation 11
Rocket Lake S Architecture Rocket Lake S
Desktop / Server Segment Desktop / Server
Intel Core i9-10900F Predecessor Intel Core i9-10900KF
Intel Core i9-12900F Successor Intel Core i9-12900KF

CPU Cores and Base Frequency

The Intel Core i9-11900F has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the Intel Core i9-11900F is 2.50 GHz (5.20 GHz) while the Intel Core i9-11900KF has 8 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the Intel Core i9-11900KF is at 3.50 GHz (5.30 GHz).

Intel Core i9-11900F Characteristic Intel Core i9-11900KF
8 Cores 8
16 Threads 16
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? Yes
2.50 GHz Frequency 3.50 GHz
5.20 GHz Turbo Frequency (1 Core) 5.30 GHz
3.80 GHz Turbo Frequency (All Cores) 4.80 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Core i9-11900F Characteristic Intel Core i9-11900KF
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Core i9-11900F or Intel Core i9-11900KF has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

no iGPU GPU no iGPU
GPU frequency --
-- GPU (Turbo) --
-- GPU Generation --
Technology
Max. displays
-- Compute units --
-- Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
-- DirectX Version --

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

no iGPU GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIe

The Intel Core i9-11900F can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 51.2 GB/s. The Intel Core i9-11900KF supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 51.2 GB/s.

Intel Core i9-11900F Characteristic Intel Core i9-11900KF
DDR4-3200 Memory DDR4-3200
128 GB Max. Memory 128 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
51.2 GB/s Max. Bandwidth 51.2 GB/s
No ECC No
4.00 MB L2 Cache 4.00 MB
16.00 MB L3 Cache 16.00 MB
4.0 PCIe version 4.0
20 PCIe lanes 20
39.4 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Core i9-11900F is 65 W, while the Intel Core i9-11900KF has a TDP of 125 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Core i9-11900F Characteristic Intel Core i9-11900KF
65 W TDP (PL1 / PBP) 125 W
224 W @ 56 s TDP (PL2) 251 W @ 56 s
-- TDP up --
-- TDP down 95 W
100 °C Tjunction max. 100 °C

Technical details

The Intel Core i9-11900F is manufactured in 14 nm and has 20.00 MB cache. The Intel Core i9-11900KF is manufactured in 14 nm and has a 20.00 MB cache.

Intel Core i9-11900F Characteristic Intel Core i9-11900KF
14 nm Technology 14 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX-512 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
LGA 1200 Socket LGA 1200
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q1/2021 Release date Q1/2021
422 $ Release price 513 $
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks
⌀ Multi core performance in 4 CPU benchmarks

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i9-11900F Intel Core i9-11900F
8C 16T @ 5.20 GHz
1630 (97%)
Intel Core i9-11900KF Intel Core i9-11900KF
8C 16T @ 5.30 GHz
1686 (100%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i9-11900F Intel Core i9-11900F
8C 16T @ 5.20 GHz
1831 (97%)
Intel Core i9-11900KF Intel Core i9-11900KF
8C 16T @ 5.30 GHz
1878 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i9-11900F Intel Core i9-11900F
8C 16T @ 3.80 GHz
9674 (83%)
Intel Core i9-11900KF Intel Core i9-11900KF
8C 16T @ 4.80 GHz
11645 (100%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Core i9-11900F Intel Core i9-11900F
8C 16T @ 5.20 GHz
2148 (91%)
Intel Core i9-11900KF Intel Core i9-11900KF
8C 16T @ 5.30 GHz
2349 (100%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Core i9-11900F Intel Core i9-11900F
8C 16T @ 3.80 GHz
10040 (90%)
Intel Core i9-11900KF Intel Core i9-11900KF
8C 16T @ 4.80 GHz
11167 (100%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Core i9-11900F Intel Core i9-11900F
8C 16T @ 3.80 GHz
22830 (90%)
Intel Core i9-11900KF Intel Core i9-11900KF
8C 16T @ 4.80 GHz
25385 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core i9-11900F Intel Core i9-11900F
8C 16T @ 2.50 GHz
6265 (97%)
Intel Core i9-11900KF Intel Core i9-11900KF
8C 16T @ 3.50 GHz
6455 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i9-11900F Intel Core i9-11900F
8C 16T @ 3.80 GHz
0 (0%)
Intel Core i9-11900KF Intel Core i9-11900KF
8C 16T @ 4.80 GHz
16211 (100%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i9-11900F Intel Core i9-11900F
8C 16T @ 5.20 GHz
0 (0%)
Intel Core i9-11900KF Intel Core i9-11900KF
8C 16T @ 5.30 GHz
650 (100%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i9-11900F Intel Core i9-11900F
8C 16T @ 3.80 GHz
0 (0%)
Intel Core i9-11900KF Intel Core i9-11900KF
8C 16T @ 4.80 GHz
6187 (100%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
Intel Core i9-11900F Intel Core i9-11900F
8C 16T @ 3.80 GHz
0 (0%)
Intel Core i9-11900KF Intel Core i9-11900KF
8C 16T @ 4.80 GHz
243 (100%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i9-11900F Intel Core i9-11900F
8C 16T @ 5.20 GHz
0 (0%)
Intel Core i9-11900KF Intel Core i9-11900KF
8C 16T @ 5.30 GHz
262 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i9-11900F Intel Core i9-11900F
8C 16T @ 3.80 GHz
0 (0%)
Intel Core i9-11900KF Intel Core i9-11900KF
8C 16T @ 4.80 GHz
2515 (100%)

Devices using this processor

Intel Core i9-11900F Intel Core i9-11900KF
Unknown Unknown

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