AMD Ryzen 9 3900X vs AMD Ryzen 7 5800X

Processor comparisons   17-03-2021
   Let's say you can't decide which CPU to buy, you can make a choice after reading the full tests AMD Ryzen 9 3900X vs AMD Ryzen 7 5800X and decide which is better for games or simple use for streaming, rendering, machine learning, video editing, programming. Here is all information from real streaming and video editing tests or different benchmarks. A step-by-step analysis of all the technical characteristics, so that it can be easier to read, is summarized in the table.
   From the video comparison, you can get the results of joint testing in software tests like 3DMark, UserBenchmark, SuperPi, World of Tanks enCore Benchmark, Furmark, 7zip, Blender, GeekBench 6, 5.2, Handbrake, Gears 5, RealBench, Cinebench 23 (20, 15), WPrime, PassMark, AIDA64, MATLAB, PCMark 10, Dolphin Emulator, DaVinci Resolve Studio, Blender, VeraCrypt, Prime95.
   Gaming performance of processors in:

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

After reading the results these benchmarks and videos, you can already make an briefed decision about which CPU is better to buy for gaming AMD Ryzen 7 5800X or AMD Ryzen 9 3900X.

Summary benchmark results

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

Ryzen 9 3900X

60%

Ryzen 7 5800X

58%

The number of this parameter shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, Ryzen 9 3900X is 3% better than Ryzen 7 5800X. The data source is several popular tests. Detailed information can be found below.

Gaming performance
Summary result of all game benchmarks.

Ryzen 9 3900X

57%

Ryzen 7 5800X

56%

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: NBA 2K20, Forza Horizon 4, Metro Exodus, Hitman 3, Monster Hunter World, Resident Evil 7 Biohazard, Microsoft Flight Simulator, The Witcher 3: Wild Hunt, Half-Life: Alyx, Battlefield V, Control, Counter-Strike: Global Offensive (CS GO), Ghostrunner, Shadow of the Tomb Raider, Horizon Zero Dawn, DOTA 2A, PlayerUnknown's Battlegrounds (PUBG), League of Legends (LOL).

Gaming benchmark

Fortnite	101.5	99.7
Valorant	115.4	113.3
Cyberpunk 2077	64.6	63.5
Apex Legends	108.5	106.5
Call of Duty Warzone	86.5	85.0
Overwatch	93.5	91.8
Red Dead Redemption 2	79.6	78.2
DOOM Eternal	57.7	56.7
Warzone	90.0	88.4
Assassin's Creed	96.9	95.2
Valheim	95.8	94.1

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 computers that were in the comparisons 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 compare it in one assembly with the video card that is installed in your computer.

Power consumption

Ryzen 9 3900X

42%

Ryzen 7 5800X

57%

To make a finishing choice 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 7 5800X is more energy efficient than the Ryzen 9 3900X since it has less power consumption: 105W vs. 105W. Power consumption is particularly important for laptops. Also, when choosing a processor cooling system, you must know its TDP. It is necessary to count so that the TDP data specified in the cooler specification is greater than the TDP of the compared processor.

Software benchmarks

Let's say you plan to use the processor not only for gaming, but also for streaming, machine learning, video rendering or video editing, programming, then first of all you need to pay attention to the performance in multi-threaded mode. In this mode, to reach maximum efficiency, the processor uses all threads and cores that it has. You will find out this data from the benchmark tables below. Before using the data from these tests, be sure to find out whether 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 advantages of multi-core mode turns out to be unnecessary.
Cinebench 23, 20 an 15
The results of this benchmark show Single-threaded and Multi-threaded CPU performance

	AMD Ryzen 9 3900X	AMD Ryzen 7 5800X
Cinbench 15 Single-core	214	270
Cinbench 15 Multi-core	3168	2611
Cinbench 20 Single-core	521	628
Cinbench 20 Multi-core	7178	5724
Cinbench 23 Single-core	1342	1594
Cinbench 23 Multi-core	18424	15245

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

	AMD Ryzen 9 3900X	AMD Ryzen 7 5800X
Single-Core	2758	3479
Multi-Core	32949	28799

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

	AMD Ryzen 9 3900X	AMD Ryzen 7 5800X
Single-Core	1335	1823
Multi-Core	13268	11496

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 9 3900X	AMD Ryzen 7 5800X
Announcement date	July 07, 2019	November 05, 2020
Type	Desktop	Desktop
Socket	AM4	AM4
Core name	Matisse	Vermeer
Architecture	Zen 2	Zen 3
Generation	3	5
Turbo Frequency	4.6 MHz	4.7 MHz
Frequency	3.8 MHz	3.8 MHz
Cores	12	8
Threads	24	16
Bus rate
Bit	64	64
Lithography	7 nm	7 nm
Transistors count	7800 millions	6200 millions
Power consumption (TDP)	105 W	105 W
Memory type	DDR4	DDR4
Max. Memory
Memory Frequency	3200	3200
Memory bandwidth
L1 cache	768KB
L2 cache	6MB	4MB
L3 cache	64MB	32MB
Overclocking	Yes	Yes
Supports ECC	No	No
Part number	100-000000023 100-100000023BOX 100-100000023MPK	100-000000063 100-100000063WOF

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Another difference is that Ryzen 9 3900X has 4 more core than Ryzen 7 5800X. 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 9 3900X is better: 22
The number of parameters for which AMD Ryzen 7 5800X is better: 8
All the data in the text above do not mean that you should be guided entirely by them and trust a simple comparison of these numbers. Be sure to watch benchmarks video and read the reviews of of people who bought AMD Ryzen 9 3900X and AMD Ryzen 7 5800X before making a choice which of the processors to buy for gaming.

• AMD Ryzen 9 3900X specs and review.

• AMD Ryzen 7 5800X specs and review.