AMD Ryzen 5 7645HX vs AMD Ryzen 9 5900HX

Processor comparisons   15-02-2023
   Let's say you can't decide which processor to buy, you can make a decision after reading the detailed tests AMD Ryzen 5 7645HX vs AMD Ryzen 9 5900HX and decide which is better for games or normal use for programming, rendering, streaming, video editing, machine learning. Here is all information from real video editing and streaming tests or several benchmarks. A careful analysis of all the technical characteristics, 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 software tests such as MATLAB, Furmark, RealBench, 3DMark, AIDA64, World of Tanks enCore Benchmark, PCMark 10, VeraCrypt, Dolphin Emulator, Cinebench 23 (20, 15), DaVinci Resolve Studio, 7zip, WPrime, Gears 5, Blender, SuperPi, PassMark, Blender, Handbrake, UserBenchmark, Prime95, GeekBench 6, 5.2.
   Gaming performance of processors in:

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

After looking at the data these benchmarks and videos, you already be able to know which processor is better to buy for gaming AMD Ryzen 9 5900HX or AMD Ryzen 5 7645HX.

Summary benchmark results

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

Ryzen 5 7645HX

61%

Ryzen 9 5900HX

57%

This shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, Ryzen 5 7645HX is 6% better than Ryzen 9 5900HX. The data source is several popular tests. Detailed information can be found below.

Gaming performance
Summary result of all game benchmarks.

Ryzen 5 7645HX

57%

Ryzen 9 5900HX

55%

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

Gaming benchmark

Fortnite	100.8	97.6
Valorant	114.6	110.9
Cyberpunk 2077	64.2	62.1
Apex Legends	107.7	104.3
Call of Duty Warzone	85.9	83.2
Overwatch	92.8	89.9
Red Dead Redemption 2	79.1	76.5
DOOM Eternal	57.3	55.5
Warzone	89.4	86.5
Assassin's Creed	96.2	93.2
Valheim	95.1	92.1

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 video cards and different amounts of RAM. 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. You will get more accurate information about how powerful 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 5 7645HX

116%

Ryzen 9 5900HX

115%

To make a final decision 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 5 7645HX is more energy efficient than the Ryzen 9 5900HX since it has less power consumption: 55W vs. 45W. 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

If you want to use the processor not only for gaming, but also for video editing or video rendering, streaming, programming, machine learning, then the main parameter for you is its performance in multi-threaded mode. In this mode, the CPU uses all threads and cores that it has to the maximum to reach maximum performance. You will find out this data from the benchmark tables below. Before using the data from these tests, be sure to check whether the software you are going to use on your computer supports multi-threaded mode. Since there are still many programs that 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

	AMD Ryzen 5 7645HX	AMD Ryzen 9 5900HX
Cinbench 15 Single-core	220	223
Cinbench 15 Multi-core	3665	2160
Cinbench 20 Single-core	533	571
Cinbench 20 Multi-core	8770	5536
Cinbench 23 Single-core	1366	1344
Cinbench 23 Multi-core	24106	12051

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

	AMD Ryzen 5 7645HX	AMD Ryzen 9 5900HX
Single-Core	2897	3340
Multi-Core	38879	23829

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

	AMD Ryzen 5 7645HX	AMD Ryzen 9 5900HX
Single-Core	1918	1561
Multi-Core	12566	9439

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 in your computer. And the easier it will be to upgrade the system in the future. The same can be said about overclocking. When the processor can be overclocked, increasing its performance, then it will still be able to produce maximum FPS even 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 economy are obvious!

	AMD Ryzen 5 7645HX	AMD Ryzen 9 5900HX
Announcement date	January 27, 2023	January 12, 2021
Type	Laptop	Laptop
Socket	FL1	FP6
Core name	Dragon Range	Vermeer
Architecture	Zen 4	Zen 3
Generation	5	3
Turbo Frequency	5 MHz	4.6 MHz
Frequency	4 MHz	3.3 MHz
Cores	6	8
Threads	12	16
Bus rate
Bit	64	64
Lithography	5 nm	7 nm
Transistors count	12600 millions	9400 millions
Power consumption (TDP)	55 W	45 W
Memory type	DDR5	DDR4 - Up to 3200MHz
Max. Memory	64 Gb
Memory Frequency	5200
Memory bandwidth
L1 cache	384KB
L2 cache	6MB	4MB
L3 cache	32MB	16MB
Overclocking	Yes	Yes
Supports ECC	No	No
Part number	100-000000872	100-000000300

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Ryzen 5 7645HX is 17% better than Ryzen 9 5900HX in terms of CPU frequency. Another difference is that Ryzen 9 5900HX has 2 more core than Ryzen 5 7645HX. 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 5 7645HX is better: 29
The number of parameters for which AMD Ryzen 9 5900HX is better: 6
Although it should be understood that all the data that you have looked at here do not mean that taking them into account you should completely trust a simple comparison of these numbers. Be sure to watch the video tests and read the reviews of real owners of AMD Ryzen 5 7645HX and AMD Ryzen 9 5900HX before deciding which of the CPUs to buy for gaming.

AMD Ryzen 5 7645HX - all data

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

• AMD Ryzen 5 7645HX specs and review.

• AMD Ryzen 9 5900HX specs and review.