Intel Core i5-8400H vs Intel Core i3-1125G4

Processor comparisons   20-01-2022
   Let's say you are thinking about choosing a CPU, you will be able to make a decision by looking at the Intel Core i5-8400H vs Intel Core i3-1125G4 tests and see which is better for games or normal use for programming, rendering, video editing, machine learning, streaming. Here you can find all information from real video editing and streaming tests or many benchmarks. A careful analysis of all the technical characteristics, so that it can be easier to read, is summarized in the table.
   From the video comparison, you can get the results of joint testing in special testing software like GeekBench 6, 5.2, MATLAB, RealBench, SuperPi, PCMark 10, WPrime, DaVinci Resolve Studio, Blender, Cinebench 23 (20, 15), AIDA64, Handbrake, World of Tanks enCore Benchmark, 3DMark, Gears 5, PassMark, 7zip, Dolphin Emulator, Furmark, VeraCrypt, UserBenchmark, Blender, Prime95.
   Gaming performance of processors in:

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

After reading the results of parallel benchmarks and videos, you can already make an informed decision about which CPU is better to buy for gaming Intel Core i3-1125G4 or Intel Core i5-8400H.

Summary benchmark results

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

Core i5-8400H

52%

Core i3-1125G4

52%

Gaming performance
Summary result of all game benchmarks.

Core i5-8400H

52%

Core i3-1125G4

52%

The maximum result in this parameter is 100 percent, which is the performance of the most powerful processor currently available. And it is clear that this is a server processor, on which no one will run games. Because this processor costs several tens of thousands of dollars. Therefore, if you think that the selected CPU has a little game result, just look at the FPS that it produces in real games in the final table below.
List of other games in which processors were compared: Metro Exodus, NBA 2K20, Microsoft Flight Simulator, The Witcher 3: Wild Hunt, Control, Monster Hunter World, Counter-Strike: Global Offensive (CS GO), League of Legends (LOL), Hitman 3, DOTA 2A, Ghostrunner, Resident Evil 7 Biohazard, Shadow of the Tomb Raider, Battlefield V, Forza Horizon 4, Horizon Zero Dawn, Half-Life: Alyx, PlayerUnknown's Battlegrounds (PUBG).

Gaming benchmark

Fortnite	92.6	92.6
Valorant	105.2	105.2
Cyberpunk 2077	58.9	58.9
Apex Legends	98.9	98.9
Call of Duty Warzone	78.9	78.9
Overwatch	85.2	85.2
Red Dead Redemption 2	72.6	72.6
DOOM Eternal	52.6	52.6
Warzone	82.0	82.1
Assassin's Creed	88.4	88.4
Valheim	87.3	87.3

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 tested computers not only did they have different video cards and different amounts of RAM. But users also tested them at different screen resolutions: FullHD, 2K or 4K. 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 compare it in one assembly with the video card that is installed in your computer.

Power consumption

Core i5-8400H

87%

Core i3-1125G4

196%

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 i3-1125G4 is more energy efficient than the Core i5-8400H as it consumes less power: 45W vs. 20W. 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

Let's say you want to use the processor not only for gaming, but also for programming, streaming, machine learning, video editing or video rendering, then the main parameter for you is its performance in multi-threaded mode. In this mode, to reach maximum efficiency, the CPU turns on all threads and cores that it has. You will learn this data from the benchmark tables below. Before you take into account the data from these tests, be sure to check whether the software you are going to use on your computer supports multi-threaded mode. Since there are still many programs that use only one core to run, and all the advantages 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 i5-8400H	Intel Core i3-1125G4
Cinbench 15 Single-core	178	198
Cinbench 15 Multi-core	819	778
Cinbench 20 Single-core	423	524
Cinbench 20 Multi-core	1972	1922
Cinbench 23 Single-core	867	1034
Cinbench 23 Multi-core	4287	4014

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

	Intel Core i5-8400H	Intel Core i3-1125G4
Single-Core	2469	3461
Multi-Core	8199	8031

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

	Intel Core i5-8400H	Intel Core i3-1125G4
Single-Core	1176	1179
Multi-Core	4475	4510

Comparison of specifications

In the specification comparison table, the most helpful will be the the possibility of overclocking it and release date of the processor. 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 benefits from the presence of overclocking. When the processor can be overclocked, thereby increasing its performance, then it will still be able to produce maximum FPS even in the newest games. The savings are obvious! It turns out that you do not need to buy a new CPU to enjoy the games any longer.

	Intel Core i5-8400H	Intel Core i3-1125G4
Announcement date	July 07, 2018	February 24, 2021
Type	Laptop	Laptop
Socket	FCBGA1440	FCBGA1449
Core name	Coffee Lake	Tiger Lake
Architecture	x86	x86
Generation	8	11
Turbo Frequency	4.2 MHz	3.7 MHz
Frequency	2.5 MHz	2 MHz
Cores	4	4
Threads	8	8
Bus rate	8 GT/s	4 GT/s
Bit	64	64
Lithography	14 nm	10 nm
Transistors count	2000 millions	3200 millions
Power consumption (TDP)	45 W	20 W
Memory type	DDR4-2666, LPDDR3-2133	DDR4-3200, LPDDR4x-3733
Max. Memory	64 Gb	64 Gb
Memory Frequency
Memory bandwidth	41.8 GB/s
L1 cache
L2 cache
L3 cache	8 MB	8 MB
Overclocking	No	No
Supports ECC	No	No
Part number	Expansion Options

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Core i5-8400H is 19% better than Core i3-1125G4 in terms of CPU frequency. 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 i5-8400H is better: 8
The number of parameters for which Intel Core i3-1125G4 is better: 12
However, it should be understood 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 figures. Be sure to watch benchmarks video and read the opinion of real owners of Intel Core i5-8400H and Intel Core i3-1125G4 before making a choice which of the processors to buy for gaming.

Intel Core i5-8400H - all data

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

• Intel Core i5-8400H specs and review.

Intel Core i3-1125G4 - all data

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

• Intel Core i3-1125G4 specs and review.