Intel Core i5-1240U vs Intel Core i7-7820X

Processor comparisons 10-01-2022

   Let's say there are difficulties with the choice of a processor, you will solve them by reading the comprehensive tests Intel Core i5-1240U vs Intel Core i7-7820X and decide which is better for games or simple use for machine learning, programming, rendering, video editing, streaming. Here is useful information from many benchmarks or real streaming and video editing tests. A thorough review of all the specifications, so that it can be 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 such as Dolphin Emulator, Gears 5, PCMark 10, RealBench, GeekBench 6, 5.2, Prime95, Cinebench 23 (20, 15), AIDA64, UserBenchmark, Furmark, PassMark, WPrime, Blender, VeraCrypt, MATLAB, Handbrake, 7zip, Blender, World of Tanks enCore Benchmark, DaVinci Resolve Studio, SuperPi, 3DMark.
   Gaming performance of processors in:

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

After looking at the data these benchmarks and videos, you can already make an informed decision about which processor is better to buy for gaming Intel Core i7-7820X or Intel Core i5-1240U.

Summary benchmark results

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

Core i5-1240U

55%

Core i7-7820X

55%

Gaming performance
Summary result of all game benchmarks.

Core i5-1240U

53%

Core i7-7820X

55%

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

Gaming benchmark

Fortnite	94.7	98.5
Valorant	107.7	111.9
Cyberpunk 2077	60.3	62.7
Apex Legends	101.2	105.2
Call of Duty Warzone	80.7	83.9
Overwatch	87.2	90.6
Red Dead Redemption 2	74.3	77.2
DOOM Eternal	53.8	55.9
Warzone	84.0	87.3
Assassin's Creed	90.4	94.0
Valheim	89.4	92.9

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: 2K, 4K 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 i5-1240U

440%

Core i7-7820X

32%

To make a finishing resolution 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 i5-1240U is more energy efficient than the Core i7-7820X since it has less power consumption: 9W vs. 140W. Power consumption is especially 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

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 i5-1240U	Intel Core i7-7820X
Cinbench 15 Single-core	218	197
Cinbench 15 Multi-core	1607	1887
Cinbench 20 Single-core	527	498
Cinbench 20 Multi-core	3649	5155
Cinbench 23 Single-core	1233	1246
Cinbench 23 Multi-core	12029	12165

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

	Intel Core i5-1240U	Intel Core i7-7820X
Single-Core	2885	2502
Multi-Core	16840	17305

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

	Intel Core i5-1240U	Intel Core i7-7820X
Single-Core	1189	1357
Multi-Core	6604	10261

Comparison of specifications

In the specification comparison table, the most helpful 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 benefits from the presence of overclocking. When the processor can be overclocked, thereby increasing its performance, then it will continue to maintain maximum FPS in the newest games. It turns out that there is no longer a need to buy a new CPU to enjoy the games any longer. The savings are obvious!

	Intel Core i5-1240U	Intel Core i7-7820X
Announcement date	January 07, 2022	April 01, 2017
Type	Laptop	Desktop
Socket	FCBGA1744	FCLGA2066
Core name	Alder Lake-U	Skylake
Architecture	x86	x86
Generation	12	7
Turbo Frequency	4.4 MHz	4.3 MHz
Frequency	1 MHz	3.6 MHz
Cores	10	8
Threads	12	16
Bus rate	8 GT/s	8 GT/s
Bit	64	64
Lithography	10 nm	14 nm
Transistors count	9800 millions	8400 millions
Power consumption (TDP)	9 W	140 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	DDR4-2666
Max. Memory	64 Gb	128 Gb
Memory Frequency
Memory bandwidth	45.8 GB/s	85 GB/s
L1 cache
L2 cache
L3 cache	24 MB	11 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 i7-7820X is 72% better than Core i5-1240U in terms of CPU frequency. Another difference is that Core i5-1240U has 2 more core than Core i7-7820X. 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 i5-1240U is better: 11
The number of parameters for which Intel Core i7-7820X is better: 22
Although it should be understood that all the number in the article above do not mean that taking them into account you should fully trust a simple quantitative comparison. Be sure to watch benchmarks video and read the opinion of real owners of Intel Core i5-1240U and Intel Core i7-7820X before making a choice which of the processors to buy for gaming.

Intel Core i5-1240U - all data

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

• Intel Core i5-1240U specs and review.

Intel Core i7-7820X - all data

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

• Intel Core i7-7820X specs and review.