Intel Core i3-1305U vs Intel Core i7-1255U

Processor comparisons   30-01-2023
   If you can't decide which CPU to buy, you can make a decision after reading the comprehensive tests Intel Core i3-1305U vs Intel Core i7-1255U and understand which is better for games or normal use for streaming, programming, rendering, machine learning, video editing. Here is useful information from real video editing and streaming tests or various benchmarks. A thorough review of all the specifications, to make it easier to understand, is summarized in the table.
   From the video comparison, you can get the results of joint testing in synthetic type tests like 7zip, MATLAB, Blender, DaVinci Resolve Studio, Gears 5, VeraCrypt, Cinebench 23 (20, 15), PCMark 10, RealBench, SuperPi, Blender, GeekBench 6, 5.2, PassMark, 3DMark, AIDA64, Prime95, WPrime, Handbrake, Dolphin Emulator, Furmark, UserBenchmark, World of Tanks enCore Benchmark.
   And how good the CPUs are in games:

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

After reading the results of parallel benchmarks and videos, you already be able to figure out which processor is better to buy for gaming Intel Core i7-1255U or Intel Core i3-1305U.

Summary benchmark results

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

Core i3-1305U

57%

Core i7-1255U

55%

This parameter shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, Core i3-1305U is 3% better than Core i7-1255U. The data source is several popular tests. Detailed information can be found below.

Gaming performance
Summary result of all game benchmarks.

Core i3-1305U

54%

Core i7-1255U

54%

The maximum result in this parameter is 100 percent, which is the performance of the most powerful processor at the moment. And of course, this is a server processor, on which no one will play 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 summary table below.
List of less popular games in which CPU comparisons were performed: NBA 2K20, Control, Forza Horizon 4, PlayerUnknown's Battlegrounds (PUBG), Microsoft Flight Simulator, DOTA 2A, The Witcher 3: Wild Hunt, Ghostrunner, Hitman 3, Monster Hunter World, Horizon Zero Dawn, Counter-Strike: Global Offensive (CS GO), Battlefield V, Metro Exodus, Shadow of the Tomb Raider, Half-Life: Alyx, League of Legends (LOL), Resident Evil 7 Biohazard.

Gaming benchmark

Fortnite	95.1	95.1
Valorant	108.1	108.1
Cyberpunk 2077	60.5	60.5
Apex Legends	101.6	101.6
Call of Duty Warzone	81.0	81.0
Overwatch	87.5	87.5
Red Dead Redemption 2	74.6	74.6
DOOM Eternal	54.0	54.0
Warzone	84.3	84.3
Assassin's Creed	90.8	90.8
Valheim	89.7	89.7

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 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. To be sure exactly how much performance 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 i3-1305U

369%

Core i7-1255U

278%

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 i3-1305U is more energy efficient than the Core i7-1255U 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. It is necessary to calculate 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 video editing or video rendering, streaming, machine learning, programming, then the main parameter for you is its performance in multi-threaded mode. In this mode, to reach maximum performance, the CPU includes all cores and threads that it has. 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. 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 i3-1305U	Intel Core i7-1255U
Cinbench 15 Single-core	224	230
Cinbench 15 Multi-core	2295	1691
Cinbench 20 Single-core	372	554
Cinbench 20 Multi-core	5093	3839
Cinbench 23 Single-core	1295	1297
Cinbench 23 Multi-core	14639	12654

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

	Intel Core i3-1305U	Intel Core i7-1255U
Single-Core	1182	3035
Multi-Core	24951	17715

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

	Intel Core i3-1305U	Intel Core i7-1255U
Single-Core	1663	1251
Multi-Core	6952	6947

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 later. The same benefits from the presence of overclocking. If the processor can be overclocked, thereby increasing its performance, then it will continue to maintain maximum FPS in new games. The economy are obvious! It turns out that there is no longer a need to buy a new CPU to enjoy the games any longer.

	Intel Core i3-1305U	Intel Core i7-1255U
Announcement date	January 15, 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	4.5 MHz	4.7 MHz
Frequency	3.3 MHz	1.7 MHz
Cores	5	10
Threads	6	12
Bus rate	14 GT/s	8 GT/s
Bit	64	64
Lithography	7 nm	10 nm
Transistors count	12400 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 5200 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	4800
Memory bandwidth	68 GB/s	45.8 GB/s
L1 cache	1 MB
L2 cache	4 MB
L3 cache	10 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 i3-1305U is 48% better than Core i7-1255U in terms of CPU frequency. Another difference is that Core i7-1255U has 5 more core than Core i3-1305U. 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 i3-1305U is better: 15
The number of parameters for which Intel Core i7-1255U is better: 9
However, it should be realized that all the number that you have looked at here do not mean that you should be guided entirely by them and trust a simple comparison of these numbers. Be sure to watch benchmarks video and read the opinion of of people who bought Intel Core i3-1305U and Intel Core i7-1255U before making a decision which of the processors to buy for gaming.

Intel Core i3-1305U - all data

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

• Intel Core i3-1305U specs and review.

Intel Core i7-1255U - all data

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

• Intel Core i7-1255U specs and review.