Intel Core i9-11900KF vs Intel Core i9-9940X

Processor comparisons 18-03-2021

   For example there are difficulties with the choice of a processor, you will solve them by reading the full tests Intel Core i9-11900KF vs Intel Core i9-9940X and see which is better for games or normal use for programming, machine learning, rendering, streaming, video editing. Here you can find useful information from several benchmarks or real video editing and streaming tests. A step-by-step analysis of all the specifications, so that it can be easier to understand, is presented in the form of the table.
   From the video comparison, you can get the results of parallel examination in special test applications like GeekBench 6, 5.2, PassMark, RealBench, VeraCrypt, SuperPi, World of Tanks enCore Benchmark, Prime95, 3DMark, Blender, UserBenchmark, DaVinci Resolve Studio, PCMark 10, WPrime, Blender, Dolphin Emulator, MATLAB, Furmark, Gears 5, AIDA64, Cinebench 23 (20, 15), 7zip, Handbrake.
   Gaming performance of CPUs in:

World of Warcraft: Shadowlands
Watch Dogs Legion
Call of Duty: Warzone and Modern Warfare
Valheim
Fallout 76
Halo Infinite
Overwatch
Death Stranding
Grand Theft Auto V
Apex Legends
Assassin's Creed Valhalla
Fortnite
Borderlands 3
Red Dead Redemption 2
Valorant
Last Man Standing
Cyberpunk 2077
DOOM: Eternal
Rainbow Six Siege

After looking at the data of joint benchmarks and videos, you already be able to know which CPU is better to buy for gaming Intel Core i9-9940X or Intel Core i9-11900KF.

Summary benchmark results

As a percentage of the maximum value based on a sample from the entire base of all processors
Processor Benchmark

Core i9-11900KF

58%

Core i9-9940X

58%

Gaming performance
Summary result of all game benchmarks.

Core i9-11900KF

54%

Core i9-9940X

59%

For the maximum in this test, the results of the most powerful processor in the site database are taken. And of course, this is a server processor, on which no one will play games. Because this processor costs several tens of thousands of dollars. And if it seems to you that the selected CPU has a little game result, look at the FPS that it produces in real games in the summary table below.
List of other games in which processors were compared: NBA 2K20, DOTA 2A, The Witcher 3: Wild Hunt, Shadow of the Tomb Raider, Monster Hunter World, Counter-Strike: Global Offensive (CS GO), Microsoft Flight Simulator, Half-Life: Alyx, Forza Horizon 4, PlayerUnknown's Battlegrounds (PUBG), Resident Evil 7 Biohazard, Control, League of Legends (LOL), Ghostrunner, Horizon Zero Dawn, Hitman 3, Metro Exodus, Battlefield V.

Gaming benchmark

Fortnite	96.8	104.5
Valorant	110.0	118.8
Cyberpunk 2077	61.6	66.5
Apex Legends	103.4	111.7
Call of Duty Warzone	82.5	89.1
Overwatch	89.1	96.2
Red Dead Redemption 2	75.9	82.0
DOOM Eternal	55.0	59.4
Warzone	85.8	92.7
Assassin's Creed	92.4	99.8
Valheim	91.3	98.6

The numbers in this table indicate the maximum FPS that was received on the device with the corresponding processor. Depending on the configuration of the computer (RAM size and Video Card) and graphics quality settings (Ultra, Medium, Normal), the results may differ quite significantly. We recommend that you better study the results of the Cinebench, GeekBench and Passmark becnmarks.
The computers participating in the comparing not only were the equipped with different video cards and different amounts of RAM. But users also tested them at different screen resolutions: 2K, 4K or FullHD. So the game benchmark data is approximate. But all video cards met the average system requirements of games. To be sure exactly how much performance the processor will be in games, if you get acquainted with the benchmarks that are made with the same video card that is installed in your computer.

Power consumption

Core i9-11900KF

45%

Core i9-9940X

25%

To make a finishing choice on which processor is better, you should also consider the generation of its core. The newer the processor generation, the better its performance in games and benchmarks, as well as its energy efficiency. In this case the Core i9-11900KF is more energy efficient than the Core i9-9940X as it consumes less power: 125W vs. 165W. Power consumption is particularly important for laptops. And TDP should be taken into account when choosing a processor cooling system. You need to buy a cooler that has the TDP data specified in the specification was greater than the TDP of the compared processor.

Software benchmarks

If you plan to use the processor not only for gaming, but also for machine learning, video editing or video rendering, programming, streaming, then first of all you need to pay attention to the performance in multi-threaded mode. In this mode, to reach maximum efficiency, the CPU uses all cores and threads that it has. You will find out this data from the benchmark tables below. Before using the data from these tests, be sure to check whether the program you are going to use on your computer supports multi-threaded mode. Because there are still many programs that use only one core to run, and all the advantages of multi-core mode turns out to be unnecessary.

Cinebench 23, 20 an 15
The results of this benchmark show Single-threaded and Multi-threaded CPU performance

	Intel Core i9-11900KF	Intel Core i9-9940X
Cinbench 15 Single-core	281	197
Cinbench 15 Multi-core	2549	2587
Cinbench 20 Single-core	630	457
Cinbench 20 Multi-core	5668	5912
Cinbench 23 Single-core	1636	1175
Cinbench 23 Multi-core	16310	20834

Passmark
This popular benchmark displays Multi-threaded and Single-threaded processor performance

	Intel Core i9-11900KF	Intel Core i9-9940X
Single-Core	3763	2589
Multi-Core	27884	28183

GeekBench 6, 5.2
This benchmark shows Multi-threaded and Single-threaded processor performance

	Intel Core i9-11900KF	Intel Core i9-9940X
Single-Core	1722	1257
Multi-Core	8613	16211

Comparison of specifications

In the specification comparison table, the most useful will be the release date of the processor and the possibility of overclocking it. The newer the processor, the longer it will last you. And the easier it will be to upgrade the system in the future. The same can be said about overclocking. If the processor can be overclocked, thereby increasing its performance, then it will continue to maintain maximum FPS in the newest games. Accordingly, you do not need to buy a new CPU to enjoy the games any longer. The savings are obvious!

	Intel Core i9-11900KF	Intel Core i9-9940X
Announcement date	February 21, 2021	October 01, 2018
Type	Desktop	Desktop
Socket	FCLGA1200	FCLGA2066
Core name	Rocket Lake	Skylake
Architecture	x86	x86
Generation	11	9
Turbo Frequency	5.3 MHz	4.5 MHz
Frequency	3.5 MHz	3.3 MHz
Cores	8	14
Threads	16	28
Bus rate	8 GT/s	8 GT/s
Bit	64	64
Lithography	14 nm	14 nm
Transistors count	9800 millions	8600 millions
Power consumption (TDP)	125 W	165 W
Memory type	DDR4-3200	DDR4-2666
Max. Memory	128 Gb	128 Gb
Memory Frequency	3200
Memory bandwidth	50 GB/s	85 GB/s
L1 cache
L2 cache	4 MB
L3 cache	16 MB	19.25 MB
Overclocking	Yes	No
Supports ECC	No	No
Part number

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Core i9-11900KF is 5% better than Core i9-9940X in terms of CPU frequency. Another difference is that Core i9-9940X has 6 more core than Core i9-11900KF. Also keep in mind that high CPU frequency affects battery life through power consumption (relevant for laptops).

Result:
The number of parameters for which Intel Core i9-11900KF is better: 14
The number of parameters for which Intel Core i9-9940X is better: 20
However, it should be understood that all the data in the article above do not mean that taking them into account you should fully trust a simple comparison of these numbers. Better to watch the testing video and read the opinion of real owners of Intel Core i9-11900KF and Intel Core i9-9940X before making a choice which of the processors to buy for gaming.

• Intel Core i9-11900KF specs and review.

Intel Core i9-9940X - all data

• Fortnite gaming benchmark
• Assassin's Creed gaming benchmark
• DOOM Eternal gaming benchmark
• Overwatch gaming benchmark
• Call of Duty: Warzone gaming benchmark
• Apex Legends gaming benchmark
• Cyberpunk 2077 gaming benchmark
• Roblox gaming benchmark
• PUBG gaming benchmark
• Red Dead Redemption 2 gaming benchmark
• GTA 5 gaming benchmark
• Valorant gaming benchmark

• Intel Core i9-9940X specs and review.