Intel Core i7-1355U vs Intel Core i5-1245U

Processor comparisons   30-01-2023
   Let's say there are difficulties with the choice of a processor, you will solve them by reading the full tests Intel Core i7-1355U vs Intel Core i5-1245U and decide which is better for games or simple use for video editing, machine learning, programming, streaming, rendering. Here is all information from several benchmarks or real streaming and video editing tests. A careful analysis of all the technical characteristics, so that it can be easier to understand, is summarized in the table.
   From the comparison video, you can get the results of parallel examination in special test applications like 7zip, Furmark, Dolphin Emulator, RealBench, GeekBench 6, 5.2, WPrime, Cinebench 23 (20, 15), AIDA64, VeraCrypt, Blender, Handbrake, PassMark, SuperPi, DaVinci Resolve Studio, Prime95, MATLAB, 3DMark, Gears 5, Blender, PCMark 10, UserBenchmark, World of Tanks enCore Benchmark.
   Gaming performance of processors in:

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

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 i5-1245U or Intel Core i7-1355U.

Summary benchmark results

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

Core i7-1355U

57%

Core i5-1245U

55%

This value shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, Core i7-1355U is 3% better than Core i5-1245U. The data source is several popular tests. More detailed information of the benchmarks is below.

Gaming performance
Summary result of all game benchmarks.

Core i7-1355U

55%

Core i5-1245U

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

Gaming benchmark

Fortnite	98.4	94.9
Valorant	111.8	107.9
Cyberpunk 2077	62.6	60.4
Apex Legends	105.1	101.4
Call of Duty Warzone	83.8	80.9
Overwatch	90.5	87.4
Red Dead Redemption 2	77.1	74.4
DOOM Eternal	55.9	53.9
Warzone	87.2	84.2
Assassin's Creed	93.9	90.6
Valheim	92.8	89.5

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 comparing not only were the equipped with different video cards and different amounts of RAM. But users also tested them at different screen resolutions: FullHD, 2K or 4K. 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 i7-1355U

364%

Core i5-1245U

272%

To make a finishing 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 i7-1355U is more energy efficient than the Core i5-1245U as it consumes less power: 15W vs. 15W. Power consumption is particularly important for laptops. Also, when choosing a processor cooling system, it will be useful 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

Let's say you want to use the processor not only for gaming, but also for machine learning, video rendering or video editing, programming, streaming, then the main parameter for you is its performance in multi-threaded mode. In this mode, to reach maximum efficiency, the CPU includes all threads and cores that it has. You will learn 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 can use only one core to work, 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 i7-1355U	Intel Core i5-1245U
Cinbench 15 Single-core	301	225
Cinbench 15 Multi-core	2259	1657
Cinbench 20 Single-core	735	543
Cinbench 20 Multi-core	5138	3762
Cinbench 23 Single-core	1730	1271
Cinbench 23 Multi-core	16955	12401

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

	Intel Core i7-1355U	Intel Core i5-1245U
Single-Core	4061	2974
Multi-Core	23741	17361

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

	Intel Core i7-1355U	Intel Core i5-1245U
Single-Core	1639	1226
Multi-Core	10162	6808

Comparison of specifications

In the specification comparison table, the processor release date and overclocking capability will be the most useful. The later the processor is released, the longer it will last you. And the easier it will be to upgrade the system later. 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 in the newest games. Accordingly, you do not need to buy a new CPU to enjoy the games any longer. The economy are obvious!

	Intel Core i7-1355U	Intel Core i5-1245U
Announcement date	January 21, 2023	January 07, 2022
Type	Laptop	Laptop
Socket	FCBGA1744	FCBGA1744
Core name	Raptor Lake	Alder Lake-U
Architecture	x86	x86
Generation	13	12
Turbo Frequency	5 MHz	4.4 MHz
Frequency	3.7 MHz	1.6 MHz
Cores	10	10
Threads	12	12
Bus rate	8 GT/s	8 GT/s
Bit	64	64
Lithography	7 nm	10 nm
Transistors count	9800 millions	9800 millions
Power consumption (TDP)	15 W	15 W
Memory type	Up to DDR5 5200 MT/s Up to DDR4 3200 MT/s Up to LPDDR5/x 6400 MT/s Up to LPDDR4x 4267 MT/s	Up to DDR5 4800 MT/s Up to DDR4 3200 MT/s Up to LPDDR5 5200 MT/s Up to LPDDR4x 4267 MT/s
Max. Memory	64 Gb	64 Gb
Memory Frequency
Memory bandwidth	45.8 GB/s	45.8 GB/s
L1 cache
L2 cache	2MB
L3 cache	12 MB	24 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 i7-1355U is 56% better than Core i5-1245U 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 i7-1355U is better: 27
The number of parameters for which Intel Core i5-1245U is better: 1
Although it should be realized 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 figures. Better to watch the testing video and read the opinion of of people who bought Intel Core i7-1355U and Intel Core i5-1245U before deciding which CPU to buy for gaming and which not.

Intel Core i7-1355U - all data

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

• Intel Core i7-1355U specs and review.

Intel Core i5-1245U - all data

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

• Intel Core i5-1245U specs and review.