Intel Core i9-11900KF: specs and benchmarks

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Summary

Intel started Core i9-11900KF sales 16 March 2021. This is a Rocket Lake architecture desktop processor primarily aimed at office systems. It has 8 cores and 16 threads, and is based on 14 nm manufacturing technology, with a max turbo frequency of 5200 MHz and an unlocked multiplier.

Compatibility-wise, this is FCLGA1200 processor with a TDP of 125 Watt and a maximum temperature of 72 °C. It supports DDR4-3200 memory.

It provides poor benchmark performance at 20.13% of a leader's which is AMD EPYC 9654.

EPYC 9654EPYC9654
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General info

Core i9-11900KF processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance ranking293
Value for money36.00
Market segmentDesktop processor
Architecture codenameRocket Lake (2021)
Release date16 March 2021 (2 years old)
Current price$437 of 15710 (Xeon Platinum 8276L)
Value for money

Performance per price, higher is better.

Technical specs

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores8 (Octa-Core)
Threads16
Base clock speed3.5 GHzof 4.7 (FX-9590)
Boost clock speed5.2 GHzof 6 (Core i9-13900KS)
L1 cache64K (per core)of 7475.2 (Apple M2 Pro 10-Core)
L2 cache256K (per core)of 36864 (Apple M2 Max)
L3 cache16 MB (shared)of 768 (EPYC 7373X)
Chip lithography14 nmof 4 (Ryzen 9 7940HS)
Maximum core temperature100 °Cof 110 (Atom x7-E3950)
Maximum case temperature (TCase)72 °Cof 105 (Core i7-5950HQ)
64 bit support+
Windows 11 compatibility+
Unlocked multiplier+

Compatibility

Information on Core i9-11900KF compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1of 8 (Opteron 842)
SocketFCLGA1200
Power consumption (TDP)125 Wattof 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Core i9-11900KF. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI+
AVX+
Enhanced SpeedStep (EIST)+
Enhanced SpeedStep (EIST)+
Turbo Boost Technology2.0
Hyper-Threading Technology+
TSX+
Idle States+
Thermal Monitoring+
SIPP-
Turbo Boost Max 3.0+

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT+
EDB+
Secure Key+
Identity Protection+
SGX-
OS Guard+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-d+
VT-x+
EPT+

Memory specs

Types, maximum amount and channel number of RAM supported by Core i9-11900KF's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR4-3200of 5600 (Ryzen 9 7940HS)
Maximum memory size128 GBof 786 (Xeon E5-2670 v3)
Max memory channels2of 12 (Xeon Platinum 9221)
Maximum memory bandwidth50 GB/sof 460.8 (EPYC 9124)
ECC memory support-

Peripherals

Specifications and connection types of supported peripherals.

PCIe version4.0of 5 (Core i9-12900K)
PCI Express lanes20of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Core i9-11900KF. Overall benchmark performance is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i9-11900KF 20.13

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Benchmark coverage: 68%

i9-11900KF 25374

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Benchmark coverage: 41%

i9-11900KF 2284

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Benchmark coverage: 41%

i9-11900KF 10168

Gaming performance

Relative perfomance

Overall Core i9-11900KF performance compared to nearest competitors among desktop CPUs.


AMD equivalent

According to our data, the closest AMD alternative to Core i9-11900KF is Ryzen Threadripper 2920X, which is slower by 1% and lower by 7 positions in our ranking.

Ryzen Threadripper 2920XRyzen Threadripper2920X
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Here are some closest AMD rivals to Core i9-11900KF:

Similar processors

Here is our recommendation of several processors that are more or less close in performance to the one reviewed.

i9-11900KCore i911900K
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i5-13400Core i513400
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i5-13400FCore i513400F
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i9-9920XCore i99920X
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Ryzen Threadripper 2920XRyzen Threadripper2920X
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Ryzen 7 5800Ryzen 75800
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Recommended GPUs

People consider these graphics cards to be good for Core i9-11900KF, according to our PC configuration statistics.

These are the fastest graphics cards for Core i9-11900KF in our user configuration statistics. There is a total of 1178 configurations based on Core i9-11900KF in our database.

RTX 4090 GeForce RTX 4090
6.7% (79/1178)
RTX 4080 GeForce RTX 4080
1.1% (13/1178)
RTX 4070 Ti GeForce RTX 4070 Ti
3.2% (38/1178)
RX 7900 XTX Radeon RX 7900 XTX
0.3% (3/1178)
RTX 3090 Ti GeForce RTX 3090 Ti
3.2% (38/1178)
RX 7900 XT Radeon RX 7900 XT
0.2% (2/1178)
RX 6950 XT Radeon RX 6950 XT
0.2% (2/1178)
RTX 3080 Ti GeForce RTX 3080 Ti
8.5% (100/1178)
RX 6900 XT Radeon RX 6900 XT
0.8% (9/1178)
RTX 3090 GeForce RTX 3090
10.3% (121/1178)

User ratings: view and submit

Here is the rating given to the reviewed processor by our users. Let others know your opinion by rating it yourself.


4.2 240 votes

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Questions and comments

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