Intel Core i3-11100B vs Intel Core i5-9400

Processor comparisons 26-06-2021

   For example you can't decide which CPU to buy, you can make a choice after reading the detailed tests Intel Core i3-11100B vs Intel Core i5-9400 and understand which is better for games or simple use for programming, video editing, rendering, machine learning, streaming. Here is all information from different benchmarks or real streaming and video editing tests. A careful review of all the specifications, to make it easier to understand, is presented in the form of the table.
   From the comparison video, you can get the results of joint testing in special test applications like Blender, Dolphin Emulator, Cinebench 23 (20, 15), Prime95, PCMark 10, Gears 5, World of Tanks enCore Benchmark, WPrime, VeraCrypt, GeekBench 6, 5.2, Blender, AIDA64, Handbrake, 7zip, RealBench, SuperPi, UserBenchmark, DaVinci Resolve Studio, MATLAB, PassMark, Furmark, 3DMark.
   Gaming performance of processors in:

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

After looking at the data these benchmarks and videos, you can already make an informed decision about which processor is better to buy for gaming Intel Core i5-9400 or Intel Core i3-11100B.

Summary benchmark results

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

Core i3-11100B

53%

Core i5-9400

52%

This parameter shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, Core i3-11100B is 1% better than Core i5-9400. The data source is several popular tests. More detailed information of the benchmarks is below.

Gaming performance
Summary result of all game benchmarks.

Core i3-11100B

53%

Core i5-9400

53%

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 run games. Because this processor costs several tens of thousands of dollars. And if it seems to you that the selected CPU has a small game result, look at the FPS that it produces in real games in the final table below.
List of less popular games in which processors were compared: Resident Evil 7 Biohazard, Half-Life: Alyx, Counter-Strike: Global Offensive (CS GO), NBA 2K20, Ghostrunner, Shadow of the Tomb Raider, Forza Horizon 4, Microsoft Flight Simulator, Hitman 3, Metro Exodus, League of Legends (LOL), Monster Hunter World, The Witcher 3: Wild Hunt, PlayerUnknown's Battlegrounds (PUBG), Horizon Zero Dawn, DOTA 2A, Battlefield V, Control.

Gaming benchmark

Fortnite	93.8	93.5
Valorant	106.6	106.3
Cyberpunk 2077	59.7	59.5
Apex Legends	100.2	99.9
Call of Duty Warzone	80.0	79.7
Overwatch	86.4	86.1
Red Dead Redemption 2	73.6	73.3
DOOM Eternal	53.3	53.1
Warzone	83.2	82.9
Assassin's Creed	89.6	89.3
Valheim	88.5	88.2

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 amounts of RAM and different video cards. But users also tested them at different screen resolutions: 4K, 2K or FullHD. Therefore, the game benchmark data is approximate. But all video cards met the average system requirements of games. You will get more accurate information about how powerful 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 i3-11100B

76%

Core i5-9400

56%

To make a final resolution 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 i3-11100B is more energy efficient than the Core i5-9400 as it consumes less power: 65W vs. 65W. Power consumption is especially important for laptops. Also, when choosing a processor cooling system, you need to know its TDP. 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 want to use the processor not only for gaming, but also for video rendering or video editing, programming, machine learning, streaming, then first of all you need to pay attention to the performance in multi-threaded mode. In this mode, the processor includes all threads and cores that it has to the maximum to reach maximum efficiency. You will learn this data from the benchmark tables below. Before you take into account the data from these tests, be sure to find out whether the program that you are going to use on your computer can work in multi-threaded mode. Because there are still many programs that use only one core to run, and all the benefit of multi-core mode are unused.

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

	Intel Core i3-11100B	Intel Core i5-9400
Cinbench 15 Single-core	251	177
Cinbench 15 Multi-core	988	987
Cinbench 20 Single-core	665	403
Cinbench 20 Multi-core	2441	2284
Cinbench 23 Single-core	1313	1051
Cinbench 23 Multi-core	5098	5606

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

	Intel Core i3-11100B	Intel Core i5-9400
Single-Core	4395	2474
Multi-Core	10199	9515

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

	Intel Core i3-11100B	Intel Core i5-9400
Single-Core	1497	1107
Multi-Core	5728	5420

Comparison of specifications

In the specification comparison table, the most useful will be the the possibility of overclocking it and release date of the processor. The later the processor is released, the longer it will last in your computer. And the easier it will be to upgrade the system later. The same benefits from the presence of overclocking. If the processor can be overclocked, increasing its performance, then it will continue to maintain maximum FPS in new games. The economy are obvious! Accordingly, you do not need to buy a new CPU to enjoy the games any longer.

	Intel Core i3-11100B	Intel Core i5-9400
Announcement date	April 24, 2021	January 01, 2019
Type	Desktop	Desktop
Socket	FCLGA1200	FCLGA1151-2
Core name	Tiger Lake	Coffee Lake
Architecture	x86	x86
Generation	11	9
Turbo Frequency	4.4 MHz	4.1 MHz
Frequency	3.6 MHz	2.9 MHz
Cores	4	6
Threads	8	6
Bus rate	8 GT/s	8 GT/s
Bit	64	64
Lithography	10 nm	14 nm
Transistors count	3400 millions	3600 millions
Power consumption (TDP)	65 W	65 W
Memory type	Up to 3200 MT/s	DDR4-2666
Max. Memory	128 Gb	128 Gb
Memory Frequency
Memory bandwidth	45.8 GB/s	41.6 GB/s
L1 cache
L2 cache
L3 cache	12 MB	9 MB
Overclocking	yes	Yes
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 i3-11100B is 19% better than Core i5-9400 in terms of CPU frequency. Another difference is that Core i5-9400 has 2 more core than Core i3-11100B. 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 i3-11100B is better: 27
The number of parameters for which Intel Core i5-9400 is better: 4
However, it should be realized that all the data that you have looked at here do not mean that taking them into account you should completely trust a simple comparison of these numbers. Be sure to watch the testing video and read the opinion of of people who bought Intel Core i3-11100B and Intel Core i5-9400 before making a decision which of the CPUs to buy for gaming.

Intel Core i3-11100B - all data

• Cinebench r15 score
• Cinebench r20 score
• Cinebench r23 score
• GeekBench 6, 5.2 score

• Intel Core i3-11100B specs and review.

• Intel Core i5-9400 specs and review.