Intel Core i5-8257U vs Intel Core i5-10400H

Processor comparisons   18-01-2022
   If you can't decide which processor to buy, you can make a decision after reading the detailed tests Intel Core i5-8257U vs Intel Core i5-10400H and decide which is better for games or simple use for programming, video editing, streaming, rendering, machine learning. Here is all information from various benchmarks or real video editing and streaming tests. A step-by-step analysis of all the specifications, to make it easier to read, is presented in the form of the table.
   From the comparison video, you can get the results of joint testing in special testing software like DaVinci Resolve Studio, Blender, Furmark, World of Tanks enCore Benchmark, PassMark, RealBench, Handbrake, Prime95, AIDA64, MATLAB, PCMark 10, Dolphin Emulator, Cinebench 23 (20, 15), 7zip, Blender, SuperPi, WPrime, VeraCrypt, GeekBench 6, 5.2, Gears 5, 3DMark, UserBenchmark.
   And how good the CPUs are in games:

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

After reading the results of all benchmarks and videos, you can already make an informed decision about which CPU is better to buy for gaming Intel Core i5-10400H or Intel Core i5-8257U.

Summary benchmark results

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

Core i5-8257U

52%

Core i5-10400H

52%

Gaming performance
Summary result of all game benchmarks.

Core i5-8257U

52%

Core i5-10400H

52%

The maximum result in this parameter is 100 percent, which is the performance of the most powerful processor at the moment. 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 summary table below.
List of less popular games in which processors were compared: Hitman 3, The Witcher 3: Wild Hunt, Metro Exodus, Forza Horizon 4, Battlefield V, Half-Life: Alyx, PlayerUnknown's Battlegrounds (PUBG), Ghostrunner, Counter-Strike: Global Offensive (CS GO), Microsoft Flight Simulator, Resident Evil 7 Biohazard, Shadow of the Tomb Raider, Control, DOTA 2A, League of Legends (LOL), Monster Hunter World, Horizon Zero Dawn, NBA 2K20.

Gaming benchmark

Fortnite	92.0	92.8
Valorant	104.6	105.4
Cyberpunk 2077	58.6	59.0
Apex Legends	98.3	99.1
Call of Duty Warzone	78.4	79.1
Overwatch	84.7	85.4
Red Dead Redemption 2	72.2	72.7
DOOM Eternal	52.3	52.7
Warzone	81.6	82.2
Assassin's Creed	87.8	88.5
Valheim	86.8	87.5

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 comparisons not only were the equipped with different video cards and different amounts of RAM. 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 i5-8257U

235%

Core i5-10400H

86%

To make a finishing choice on which processor is better, you should also consider the generation of its core. It is clear that the newer the generation, the better the performance of the processor in games and benchmarks, as well as its energy efficiency. In this case the Core i5-8257U is more energy efficient than the Core i5-10400H since it has less power consumption: 15W vs. 45W. Power consumption is particularly important for laptops. Also, when choosing a processor cooling system, you must know its TDP. It is necessary to count so that the TDP data specified in the cooler specification is greater than the TDP of the compared processor.

Software benchmarks

If you want to use the processor not only for gaming, but also for programming, video rendering or video editing, streaming, machine learning, then first of all you need to pay attention to the performance in multi-threaded mode. In this mode, the processor uses all threads and cores that it has to the maximum to achieve maximum efficiency. You will learn this data from the benchmark tables below. Before using the data from these tests, be sure to find out whether the software that you are going to use on your computer can work in 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 i5-8257U	Intel Core i5-10400H
Cinbench 15 Single-core	159	188
Cinbench 15 Multi-core	667	837
Cinbench 20 Single-core	391	454
Cinbench 20 Multi-core	1628	2115
Cinbench 23 Single-core	1054	930
Cinbench 23 Multi-core	4128	4598

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

	Intel Core i5-8257U	Intel Core i5-10400H
Single-Core	2350	2726
Multi-Core	7832	8793

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

	Intel Core i5-8257U	Intel Core i5-10400H
Single-Core	1061	1169
Multi-Core	3939	4671

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 you. And the easier it will be to upgrade the system in the future. The same can be said about overclocking. When the processor can be overclocked, thereby increasing its performance, then it will continue to maintain maximum FPS even in the newest games. The economy are obvious! Accordingly, you do not need to buy a new CPU to enjoy the games any longer.

	Intel Core i5-8257U	Intel Core i5-10400H
Announcement date	November 07, 2019	July 07, 2020
Type	Laptop	Laptop
Socket	FCBGA1528	FCBGA1440
Core name	Coffee Lake	Comet Lake
Architecture	x86	x86
Generation	8	10
Turbo Frequency	3.9 MHz	4.6 MHz
Frequency	1.4 MHz	2.6 MHz
Cores	4	4
Threads	8	8
Bus rate	4 GT/s	8 GT/s
Bit	64	64
Lithography	14 nm	14 nm
Transistors count	1900 millions	4800 millions
Power consumption (TDP)	15 W	45 W
Memory type	DDR4-2400, LPDDR3-2133	DDR4-2933
Max. Memory	32 Gb	128 Gb
Memory Frequency
Memory bandwidth	37.5 GB/s	45.8 GB/s
L1 cache
L2 cache
L3 cache	6 MB	8 MB
Overclocking	No	No
Supports ECC	No	No
Part number	Expansion Options	Expansion Options

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Core i5-10400H is 46% better than Core i5-8257U 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 i5-8257U is better: 2
The number of parameters for which Intel Core i5-10400H is better: 29
However, it should be understood that all the data in the text above do not mean that you should be guided entirely by them and trust a simple comparison of these numbers. Be sure to watch the testing video and read the reviews of real owners of Intel Core i5-8257U and Intel Core i5-10400H before deciding which CPU to buy for gaming and which not.

Intel Core i5-8257U - all data

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

• Intel Core i5-8257U specs and review.

Intel Core i5-10400H - all data

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

• Intel Core i5-10400H specs and review.