AMD Ryzen 7 7840HS vs AMD Ryzen 9 7940HS

Processor comparisons   15-02-2023
   For example you are thinking about choosing a CPU, you will be able to make a choice after reading the full tests AMD Ryzen 7 7840HS vs AMD Ryzen 9 7940HS and decide which is better for games or normal use for video editing, streaming, machine learning, programming, rendering. Here is all information from many benchmarks or real streaming and video editing tests. A careful analysis of all the technical characteristics, to make it easier to read, is summarized in the table.
   From the comparison video, you can get the results of parallel examination in synthetic type tests like Blender, WPrime, Furmark, PCMark 10, 7zip, Cinebench 23 (20, 15), PassMark, GeekBench 6, 5.2, Handbrake, UserBenchmark, RealBench, AIDA64, Prime95, World of Tanks enCore Benchmark, 3DMark, VeraCrypt, Dolphin Emulator, Gears 5, MATLAB, SuperPi, DaVinci Resolve Studio, Blender.
   Gaming performance of processors in:

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

After reading the results of joint benchmarks and videos, you already be able to understand which CPU is better to buy for gaming AMD Ryzen 9 7940HS or AMD Ryzen 7 7840HS.

Summary benchmark results

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

Ryzen 7 7840HS

59%

Ryzen 9 7940HS

64%

This shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, Ryzen 9 7940HS is 7% better than Ryzen 7 7840HS. The data source is several popular tests. Detailed information can be found below.

Gaming performance
Summary result of all game benchmarks.

Ryzen 7 7840HS

57%

Ryzen 9 7940HS

61%

For the maximum in this test, the results of the most powerful processor in the site database are taken. And it is clear that this is a server processor, on which no one will play games. Because the cost of this processor reaches several tens of thousands of dollars. And if it seems to you 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 other games in which CPU comparisons were performed: The Witcher 3: Wild Hunt, Battlefield V, League of Legends (LOL), Counter-Strike: Global Offensive (CS GO), Horizon Zero Dawn, Microsoft Flight Simulator, Metro Exodus, Resident Evil 7 Biohazard, Shadow of the Tomb Raider, Hitman 3, PlayerUnknown's Battlegrounds (PUBG), Ghostrunner, NBA 2K20, Monster Hunter World, Control, DOTA 2A, Half-Life: Alyx, Forza Horizon 4.

Gaming benchmark

Fortnite	100.5	107.5
Valorant	114.2	122.1
Cyberpunk 2077	64.0	68.4
Apex Legends	107.4	114.8
Call of Duty Warzone	85.7	91.6
Overwatch	92.5	98.9
Red Dead Redemption 2	78.8	84.3
DOOM Eternal	57.1	61.1
Warzone	89.1	95.2
Assassin's Creed	96.0	102.6
Valheim	94.8	101.4

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: 2K, FullHD or 4K. 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 compare it in one assembly with the video card that is installed in your computer.

Power consumption

Ryzen 7 7840HS

156%

Ryzen 9 7940HS

165%

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 Ryzen 9 7940HS is more energy efficient than the Ryzen 7 7840HS as it consumes less power: 40W vs. 40W. 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

If you plan to use the processor not only for gaming, but also for programming, video rendering or video editing, machine learning, streaming, then first of all you need to pay attention to the performance in multi-threaded mode. In this mode, to achieve maximum efficiency, the processor uses all threads and cores that it has. You will find out this data from the benchmark tables below. Before you take into account the data from these tests, be sure to make sure that the program 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

	AMD Ryzen 7 7840HS	AMD Ryzen 9 7940HS
Cinbench 15 Single-core	211	293
Cinbench 15 Multi-core	2865	4426
Cinbench 20 Single-core	452	667
Cinbench 20 Multi-core	6799	10551
Cinbench 23 Single-core	1095	1669
Cinbench 23 Multi-core	18618	28954

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

	AMD Ryzen 7 7840HS	AMD Ryzen 9 7940HS
Single-Core	2275	3505
Multi-Core	30003	46681

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

	AMD Ryzen 7 7840HS	AMD Ryzen 9 7940HS
Single-Core	1876	1986
Multi-Core	12274	19074

Comparison of specifications

In the specification comparison table, the processor release date and overclocking capability will be the most helpful. 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. When the processor can be overclocked, increasing its performance, then it will continue to maintain maximum FPS even in the newest games. The savings are obvious! Accordingly, you do not need to buy a new CPU to enjoy the games any longer.

	AMD Ryzen 7 7840HS	AMD Ryzen 9 7940HS
Announcement date	January 27, 2023	January 27, 2023
Type	Laptop	Laptop
Socket	FP7r2;FP7;FP8	FP7r2;FP7;FP8
Core name	Phoenix	Phoenix
Architecture	Zen 4	Zen 4
Generation	6	6
Turbo Frequency	5.1 MHz	5.2 MHz
Frequency	3.8 MHz	4 MHz
Cores	8	8
Threads	16	16
Bus rate
Bit	64	64
Lithography	4 nm	4 nm
Transistors count	13400 millions	13400 millions
Power consumption (TDP)	40 W	40 W
Memory type	DDR5 (FP7r2) LPDDR5/x (FP7, FP8)	DDR5 (FP7r2) LPDDR5/x (FP7, FP8)
Max. Memory	256 Gb	256 Gb
Memory Frequency	7500	7500
Memory bandwidth
L1 cache	512KB	512KB
L2 cache	8MB	8MB
L3 cache	16MB	16MB
Overclocking	No	No
Supports ECC	Yes	Yes
Part number	100-000000955 (FP7r2) 100-000000964 (FP7) 100-000001129 (FP8)	100-000000954 (FP7r2) 100-000000963 (FP7) 100-000001128 (FP8)

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Ryzen 9 7940HS is 5% better than Ryzen 7 7840HS 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 AMD Ryzen 7 7840HS is better: 0
The number of parameters for which AMD Ryzen 9 7940HS is better: 23
Although it should be realized that all the number that you have looked at here do not mean that taking them into account you should fully trust a simple quantitative comparison. Better to watch the video tests and read the opinion of real owners of AMD Ryzen 7 7840HS and AMD Ryzen 9 7940HS before making a decision which processor to buy for gaming and which not.

AMD Ryzen 7 7840HS - all data

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

• AMD Ryzen 7 7840HS specs and review.

AMD Ryzen 9 7940HS - all data

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

• AMD Ryzen 9 7940HS specs and review.