AMD Ryzen 5 PRO 5645 vs AMD Ryzen 9 7900X

Processor comparisons 08-02-2023

   For example you can't decide which CPU to buy, you can make a decision by looking at the AMD Ryzen 5 PRO 5645 vs AMD Ryzen 9 7900X tests and understand which is better for games or normal use for machine learning, streaming, programming, video editing, rendering. Here you can find all information from many benchmarks or real streaming and video editing tests. A step-by-step analysis of all the technical characteristics, so that it can be easier to read, is made by the table.
   From the video comparison, you can get the results of parallel examination in software tests like MATLAB, Prime95, Blender, AIDA64, Gears 5, 3DMark, Blender, Dolphin Emulator, VeraCrypt, Furmark, PCMark 10, RealBench, WPrime, UserBenchmark, World of Tanks enCore Benchmark, 7zip, GeekBench 6, 5.2, PassMark, SuperPi, Handbrake, DaVinci Resolve Studio, Cinebench 23 (20, 15).
   And how good the CPUs are in games:

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

After reading the results these benchmarks and videos, you already be able to know which processor is better to buy for gaming AMD Ryzen 9 7900X or AMD Ryzen 5 PRO 5645.

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 PRO 5645

55%

Ryzen 9 7900X

66%

This value shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, Ryzen 9 7900X is 16% better than Ryzen 5 PRO 5645. The data source is several popular tests. More detailed information of the benchmarks is below.

Gaming performance
Summary result of all game benchmarks.

Ryzen 5 PRO 5645

54%

Ryzen 9 7900X

62%

The maximum result in this parameter is 100 percent, which is the performance of the most powerful processor currently available. And it is clear that 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 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 processors were compared: Metro Exodus, Resident Evil 7 Biohazard, League of Legends (LOL), Shadow of the Tomb Raider, Ghostrunner, Microsoft Flight Simulator, Battlefield V, Control, The Witcher 3: Wild Hunt, Horizon Zero Dawn, Counter-Strike: Global Offensive (CS GO), Monster Hunter World, DOTA 2A, Half-Life: Alyx, NBA 2K20, PlayerUnknown's Battlegrounds (PUBG), Forza Horizon 4, Hitman 3.

Gaming benchmark

Fortnite	95.4	110.0
Valorant	108.4	125.1
Cyberpunk 2077	60.7	70.0
Apex Legends	101.9	117.5
Call of Duty Warzone	81.3	93.8
Overwatch	87.8	101.3
Red Dead Redemption 2	74.8	86.3
DOOM Eternal	54.2	62.5
Warzone	84.6	97.5
Assassin's Creed	91.1	105.0
Valheim	90.0	103.8

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 comparisons not only were the equipped with different video cards and different amounts of RAM. 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 compare it in one assembly with the video card that is installed in your computer.

Power consumption

Ryzen 5 PRO 5645

91%

Ryzen 9 7900X

42%

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 Ryzen 5 PRO 5645 is more energy efficient than the Ryzen 9 7900X since it has less power consumption: 65W vs. 170W. Power consumption is especially 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 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

	AMD Ryzen 5 PRO 5645	AMD Ryzen 9 7900X
Cinbench 15 Single-core	237	310
Cinbench 15 Multi-core	1768	5138
Cinbench 20 Single-core	557	749
Cinbench 20 Multi-core	3929	12290
Cinbench 23 Single-core	1424	1918
Cinbench 23 Multi-core	10787	33781

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

	AMD Ryzen 5 PRO 5645	AMD Ryzen 9 7900X
Single-Core	3054	4063
Multi-Core	19015	54482

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

	AMD Ryzen 5 PRO 5645	AMD Ryzen 9 7900X
Single-Core	1775	2172
Multi-Core	7253	21612

Comparison of specifications

In the specification comparison table, the most useful will be the the possibility of overclocking it and release date of the processor. The later the processor is released, the longer it will last you. 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, thereby increasing its performance, then it will continue to maintain maximum FPS even in the newest games. The economy are obvious! Accordingly, you do not need to buy a new CPU to enjoy the games any longer.

	AMD Ryzen 5 PRO 5645	AMD Ryzen 9 7900X
Announcement date	September 20, 2022	September 27, 2022
Type	Desktop	Desktop
Socket	AM4	AM5
Core name	Vermeer	Raphael
Architecture	Zen 3	Zen 4
Generation	5	5
Turbo Frequency	4.6 MHz	5.6 MHz
Frequency	3.7 MHz	4.7 MHz
Cores	6	12
Threads	12	24
Bus rate
Bit	64	64
Lithography	7 nm	5 nm
Transistors count	4600 millions	12600 millions
Power consumption (TDP)	65 W	170 W
Memory type	DDR4	DDR4
Max. Memory
Memory Frequency	3200	3200
Memory bandwidth
L1 cache	384KB	768KB
L2 cache	3MB	12MB
L3 cache	16MB	64MB
Overclocking	No	Yes
Supports ECC	No	No
Part number	100-000000833	100-000000589

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Ryzen 9 7900X is 21% better than Ryzen 5 PRO 5645 in terms of CPU frequency. Another difference is that Ryzen 9 7900X has 6 more core than Ryzen 5 PRO 5645. 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 PRO 5645 is better: 2
The number of parameters for which AMD Ryzen 9 7900X is better: 31
Although it should be understood that all the number in the article above do not mean that taking them into account you should undividedly trust a simple comparison of these numbers. Be sure to watch the testing video and read the opinion of real owners of AMD Ryzen 5 PRO 5645 and AMD Ryzen 9 7900X before making a choice which of the CPUs to buy for gaming.

AMD Ryzen 5 PRO 5645 - all data

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

• AMD Ryzen 5 PRO 5645 specs and review.

AMD Ryzen 9 7900X - all data

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

• AMD Ryzen 9 7900X specs and review.