Intel Core i7-1255U vs Intel Core i7-1265U

Processor comparisons   10-01-2022
   Let's say you can't decide which processor to buy, you can make a choice after reading the comprehensive tests Intel Core i7-1255U vs Intel Core i7-1265U and decide which is better for games or simple use for video editing, machine learning, streaming, programming, rendering. Here is all information from several benchmarks or real video editing and streaming tests. A step-by-step analysis of all the technical characteristics, to make it easier to understand, is presented in the form of the table.
   From the comparison video, you can get the results of parallel examination in special test applications like World of Tanks enCore Benchmark, GeekBench 6, 5.2, PassMark, WPrime, Handbrake, Furmark, Blender, PCMark 10, VeraCrypt, Dolphin Emulator, Prime95, Gears 5, Blender, UserBenchmark, RealBench, MATLAB, 7zip, DaVinci Resolve Studio, 3DMark, SuperPi, Cinebench 23 (20, 15), AIDA64.
   Gaming performance of CPUs in:

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

After reading the results of all benchmarks and videos, you already be able to figure out which processor is better to buy for gaming Intel Core i7-1265U or Intel Core i7-1255U.

Summary benchmark results

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

Core i7-1255U

55%

Core i7-1265U

55%

Gaming performance
Summary result of all game benchmarks.

Core i7-1255U

54%

Core i7-1265U

54%

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 the cost of this processor reaches several tens of thousands of dollars. Therefore, if you think that the selected CPU has a little game result, look at the FPS that it produces in real games in the final table below.
List of other games in which CPU comparisons were performed: Battlefield V, Forza Horizon 4, NBA 2K20, DOTA 2A, Counter-Strike: Global Offensive (CS GO), The Witcher 3: Wild Hunt, Horizon Zero Dawn, Ghostrunner, League of Legends (LOL), Control, Microsoft Flight Simulator, Monster Hunter World, Hitman 3, Shadow of the Tomb Raider, Resident Evil 7 Biohazard, Half-Life: Alyx, PlayerUnknown's Battlegrounds (PUBG), Metro Exodus.

Gaming benchmark

Fortnite	95.1	95.2
Valorant	108.1	108.2
Cyberpunk 2077	60.5	60.6
Apex Legends	101.6	101.7
Call of Duty Warzone	81.0	81.2
Overwatch	87.5	87.7
Red Dead Redemption 2	74.6	74.7
DOOM Eternal	54.0	54.1
Warzone	84.3	84.4
Assassin's Creed	90.8	90.9
Valheim	89.7	89.8

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 computers participating in the comparing 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. 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 i7-1255U

278%

Core i7-1265U

283%

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 i7-1265U is more energy efficient than the Core i7-1255U since it has less power consumption: 15W vs. 15W. Power consumption is especially important for laptops. Also, when choosing a processor cooling system, you need 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 video rendering or video editing, machine learning, streaming, programming, then first of all you need to pay attention to the performance in multi-threaded mode. In this mode, to achieve maximum performance, 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 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 are unused.
Cinebench 23, 20 an 15
The results of this benchmark show Single-threaded and Multi-threaded CPU performance

	Intel Core i7-1255U	Intel Core i7-1265U
Cinbench 15 Single-core	230	235
Cinbench 15 Multi-core	1691	1726
Cinbench 20 Single-core	554	565
Cinbench 20 Multi-core	3839	3917
Cinbench 23 Single-core	1297	1323
Cinbench 23 Multi-core	12654	12912

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

	Intel Core i7-1255U	Intel Core i7-1265U
Single-Core	3035	3097
Multi-Core	17715	18077

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

	Intel Core i7-1255U	Intel Core i7-1265U
Single-Core	1251	1277
Multi-Core	6947	7089

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 i7-1255U	Intel Core i7-1265U
Announcement date	January 07, 2022	January 07, 2022
Type	Laptop	Laptop
Socket	FCBGA1744	FCBGA1744
Core name	Alder Lake-U	Alder Lake-U
Architecture	x86	x86
Generation	12	12
Turbo Frequency	4.7 MHz	4.8 MHz
Frequency	1.7 MHz	1.8 MHz
Cores	10	10
Threads	12	12
Bus rate	8 GT/s	8 GT/s
Bit	64	64
Lithography	10 nm	10 nm
Transistors count	9800 millions	9800 millions
Power consumption (TDP)	15 W	15 W
Memory type	Up to DDR5 4800 MT/s Up to DDR4 3200 MT/s Up to LPDDR5 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
Memory bandwidth	45.8 GB/s	45.8 GB/s
L1 cache
L2 cache
L3 cache	24 MB	24 MB
Overclocking	No	No
Supports ECC	No	No
Part number

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Core i7-1265U is 5% better than Core i7-1255U 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 i7-1255U is better: 0
The number of parameters for which Intel Core i7-1265U is better: 23
However, it should be realized that the summary data that you have looked at here do not mean that taking them into account you should entirely trust a simple quantitative comparison. Better to watch the video tests and read the opinion of real owners of Intel Core i7-1255U and Intel Core i7-1265U before making a choice which of the processors to buy for gaming.

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.

Intel Core i7-1265U - all data

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

• Intel Core i7-1265U specs and review.