Intel Core i7-8557U vs Intel Core i5-8257U

Processor comparisons 18-01-2022

   If you can't decide which CPU to buy, you can make a choice after reading the comprehensive tests Intel Core i7-8557U vs Intel Core i5-8257U and see which is better for games or normal use for machine learning, video editing, rendering, programming, streaming. Here you can find useful information from various benchmarks or real streaming and video editing tests. A thorough review of all the technical characteristics, so that it can be easier to understand, is made by the table.
   From the comparison video, you can get the results of joint testing in special testing software like Handbrake, Cinebench 23 (20, 15), Blender, Blender, MATLAB, DaVinci Resolve Studio, AIDA64, Prime95, WPrime, UserBenchmark, PassMark, VeraCrypt, Gears 5, GeekBench 6, 5.2, RealBench, Furmark, SuperPi, 7zip, Dolphin Emulator, World of Tanks enCore Benchmark, PCMark 10, 3DMark.
   And how good the CPUs are in games:

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

After reading the results of parallel benchmarks and videos, you already be able to know which processor is better to buy for gaming Intel Core i5-8257U or Intel Core i7-8557U.

Summary benchmark results

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

Core i7-8557U

52%

Core i5-8257U

52%

Gaming performance
Summary result of all game benchmarks.

Core i7-8557U

52%

Core i5-8257U

52%

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. Therefore, if you think that the selected CPU has a small game result, just 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: Metro Exodus, Horizon Zero Dawn, NBA 2K20, Forza Horizon 4, League of Legends (LOL), Ghostrunner, DOTA 2A, Control, Half-Life: Alyx, Hitman 3, Battlefield V, The Witcher 3: Wild Hunt, PlayerUnknown's Battlegrounds (PUBG), Monster Hunter World, Microsoft Flight Simulator, Counter-Strike: Global Offensive (CS GO), Resident Evil 7 Biohazard, Shadow of the Tomb Raider.

Gaming benchmark

Fortnite	92.1	92.0
Valorant	104.7	104.6
Cyberpunk 2077	58.6	58.6
Apex Legends	98.4	98.3
Call of Duty Warzone	78.5	78.4
Overwatch	84.8	84.7
Red Dead Redemption 2	72.2	72.2
DOOM Eternal	52.3	52.3
Warzone	81.7	81.6
Assassin's Creed	87.9	87.8
Valheim	86.9	86.8

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 amounts of RAM and different video cards. 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. You will get more accurate information about how powerful 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 i7-8557U

244%

Core i5-8257U

235%

To make a final decision 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 i7-8557U is more energy efficient than the Core i5-8257U as it consumes less power: 15W vs. 15W. 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 streaming, machine learning, video editing or video rendering, programming, then the main parameter for you is its performance in multi-threaded mode. In this mode, the processor turns on all cores and threads that it has to the maximum to achieve maximum efficiency. You will find out this data from the benchmark tables below. Before you take into account 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. Because there are still many programs that can use only one core to work, 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 i7-8557U	Intel Core i5-8257U
Cinbench 15 Single-core	189	159
Cinbench 15 Multi-core	705	667
Cinbench 20 Single-core	439	391
Cinbench 20 Multi-core	1762	1628
Cinbench 23 Single-core	1047	1054
Cinbench 23 Multi-core	4809	4128

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

	Intel Core i7-8557U	Intel Core i5-8257U
Single-Core	2458	2350
Multi-Core	7843	7832

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

	Intel Core i7-8557U	Intel Core i5-8257U
Single-Core	1101	1061
Multi-Core	4053	3939

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 i7-8557U	Intel Core i5-8257U
Announcement date	November 07, 2019	November 07, 2019
Type	Laptop	Laptop
Socket	FCBGA1528	FCBGA1528
Core name	Coffee Lake	Coffee Lake
Architecture	x86	x86
Generation	8	8
Turbo Frequency	4.5 MHz	3.9 MHz
Frequency	1.7 MHz	1.4 MHz
Cores	4	4
Threads	8	8
Bus rate	4 GT/s	4 GT/s
Bit	64	64
Lithography	14 nm	14 nm
Transistors count	1900 millions	1900 millions
Power consumption (TDP)	15 W	15 W
Memory type	DDR4-2400, LPDDR3-2133	DDR4-2400, LPDDR3-2133
Max. Memory	32 Gb	32 Gb
Memory Frequency
Memory bandwidth	37.5 GB/s	37.5 GB/s
L1 cache
L2 cache
L3 cache	8 MB	6 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 i7-8557U is 17% 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 i7-8557U is better: 20
The number of parameters for which Intel Core i5-8257U is better: 1
Although it should be understood that the summary data in the table above do not mean that you should be guided entirely by them and trust a simple comparison of these figures. Better to watch the testing video and read the reviews of real owners of Intel Core i7-8557U and Intel Core i5-8257U before making a decision which of the processors to buy for gaming.

Intel Core i7-8557U - all data

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

• Intel Core i7-8557U specs and review.

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.