AMD Ryzen 9 7900X vs AMD EPYC 7543

Processor comparisons   28-09-2022
   Perhaps you can't decide which CPU to buy, you can make a choice after reading the detailed tests AMD Ryzen 9 7900X vs AMD EPYC 7543 and understand which is better for games or simple use for streaming, programming, video editing, rendering, machine learning. Here you can find useful information from several benchmarks or real streaming and video editing tests. A thorough review of all the specifications, so that it can be easier to read, is summarized in the table.
   From the video comparison, you can get the results of parallel examination in synthetic type tests such as WPrime, VeraCrypt, Blender, RealBench, Furmark, Blender, SuperPi, Dolphin Emulator, AIDA64, GeekBench 6, 5.2, PassMark, PCMark 10, 3DMark, DaVinci Resolve Studio, 7zip, Handbrake, Prime95, World of Tanks enCore Benchmark, UserBenchmark, Gears 5, MATLAB, Cinebench 23 (20, 15).
   And how good the processors are in games:

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

After looking at the data these benchmarks and videos, you can already make an briefed decision about which CPU is better to buy for gaming AMD EPYC 7543 or AMD Ryzen 9 7900X.

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 7900X

66%

EPYC 7543

66%

Gaming performance
Summary result of all game benchmarks.

Ryzen 9 7900X

62%

EPYC 7543

67%

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. And if it seems to you that the selected CPU has a little game result, look at the FPS that it produces in real games in the summary table below.
List of less popular games in which processors were compared: Counter-Strike: Global Offensive (CS GO), Hitman 3, Resident Evil 7 Biohazard, Horizon Zero Dawn, Control, Half-Life: Alyx, Monster Hunter World, PlayerUnknown's Battlegrounds (PUBG), Metro Exodus, Forza Horizon 4, Battlefield V, DOTA 2A, Ghostrunner, NBA 2K20, Microsoft Flight Simulator, Shadow of the Tomb Raider, The Witcher 3: Wild Hunt, League of Legends (LOL).

Gaming benchmark

Fortnite	110.0	118.9
Valorant	125.1	135.1
Cyberpunk 2077	70.0	75.7
Apex Legends	117.5	127.0
Call of Duty Warzone	93.8	101.3
Overwatch	101.3	109.5
Red Dead Redemption 2	86.3	93.2
DOOM Eternal	62.5	67.6
Warzone	97.5	105.4
Assassin's Creed	105.0	113.5
Valheim	103.8	112.2

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 7900X

42%

EPYC 7543

20%

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 7900X is more energy efficient than the EPYC 7543 since it has less power consumption: 170W vs. 225W. Power consumption is especially important for laptops. Also, when choosing a processor cooling system, you need 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

Let's say you plan to use the processor not only for gaming, but also for streaming, programming, machine learning, video editing or video rendering, then the main parameter for you is its performance in multi-threaded mode. In this mode, the processor 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 find out whether the program 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 benefit 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 7900X	AMD EPYC 7543
Cinbench 15 Single-core	310	164
Cinbench 15 Multi-core	5138	6747
Cinbench 20 Single-core	749	307
Cinbench 20 Multi-core	12290	14301
Cinbench 23 Single-core	1918	756
Cinbench 23 Multi-core	33781	37190

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

	AMD Ryzen 9 7900X	AMD EPYC 7543
Single-Core	4063	1592
Multi-Core	54482	54553

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

	AMD Ryzen 9 7900X	AMD EPYC 7543
Single-Core	2172	1391
Multi-Core	21612	30306

Comparison of specifications

In the specification comparison table, the processor release date and overclocking capability will be the most helpful. The later the processor is released, the longer it will last in your computer. 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 still be able to produce maximum FPS even in new games. The savings are obvious! Accordingly, you do not need to buy a new CPU to enjoy the games any longer.

	AMD Ryzen 9 7900X	AMD EPYC 7543
Announcement date	September 27, 2022	March 15, 2021
Type	Desktop	Server
Socket	AM5	SP3
Core name	Raphael	Milan
Architecture	Zen 4	Zen 3
Generation	5	3
Turbo Frequency	5.6 MHz	3.7 MHz
Frequency	4.7 MHz	2.8 MHz
Cores	12	32
Threads	24	64
Bus rate
Bit	64	64
Lithography	5 nm	7 nm
Transistors count	12600 millions	68000 millions
Power consumption (TDP)	170 W	225 W
Memory type	DDR4	DDR4
Max. Memory
Memory Frequency	3200	3200
Memory bandwidth		204.8 GB/s
L1 cache	768KB
L2 cache	12MB
L3 cache	64MB	256MB
Overclocking	Yes	No
Supports ECC	No	No
Part number	100-000000589	100-000000345 100-100000319WOF

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Ryzen 9 7900X is 40% better than EPYC 7543 in terms of CPU frequency. Another difference is that EPYC 7543 has 20 more core than Ryzen 9 7900X. 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 7900X is better: 15
The number of parameters for which AMD EPYC 7543 is better: 20
All the figures in the table above do not mean that you should be guided entirely by them and trust a simple quantitative comparison. Be sure to watch the video tests and read the opinion of real owners of AMD Ryzen 9 7900X and AMD EPYC 7543 before making a selection which CPU to buy for gaming and which not.

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.

AMD EPYC 7543 - all data

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

• AMD EPYC 7543 specs and review.