AMD EPYC 7643 vs AMD Ryzen Threadripper PRO 3945WX

Processor comparisons 25-03-2021

   Perhaps you are thinking about choosing a processor, you will be able to make a choice by looking at the AMD EPYC 7643 vs AMD Ryzen Threadripper PRO 3945WX tests and understand which is better for games or simple use for streaming, machine learning, video editing, rendering, programming. Here you can find all information from real video editing and streaming tests or several benchmarks. A thorough review of all the specifications, to make it easier to read, is made by the table.
   From the video comparison, you can get the results of joint testing in synthetic type tests like WPrime, MATLAB, Dolphin Emulator, Furmark, Prime95, 3DMark, Blender, PCMark 10, SuperPi, Gears 5, GeekBench 6, 5.2, VeraCrypt, Blender, RealBench, DaVinci Resolve Studio, UserBenchmark, Handbrake, Cinebench 23 (20, 15), World of Tanks enCore Benchmark, 7zip, PassMark, AIDA64.
   Gaming performance of processors in:

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

After looking at the data of all benchmarks and videos, you can already make an informed decision about which CPU is better to buy for gaming AMD Ryzen Threadripper PRO 3945WX or AMD EPYC 7643.

Summary benchmark results

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

EPYC 7643

66%

Ryzen Threadripper PRO 3945WX

60%

This shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, EPYC 7643 is 9% better than Ryzen Threadripper PRO 3945WX. The data source is several popular tests. Detailed information can be found below.

Gaming performance
Summary result of all game benchmarks.

EPYC 7643

70%

Ryzen Threadripper PRO 3945WX

58%

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

Gaming benchmark

Fortnite	123.8	102.5
Valorant	140.6	116.5
Cyberpunk 2077	78.8	65.3
Apex Legends	132.2	109.5
Call of Duty Warzone	105.5	87.4
Overwatch	113.9	94.4
Red Dead Redemption 2	97.0	80.4
DOOM Eternal	70.3	58.3
Warzone	109.7	90.9
Assassin's Creed	118.1	97.9
Valheim	116.7	96.7

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 amounts of RAM and different video cards. But users also tested them at different screen resolutions: FullHD, 2K or 4K. So 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

EPYC 7643

18%

Ryzen Threadripper PRO 3945WX

15%

To make a final resolution 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 EPYC 7643 is more energy efficient than the Ryzen Threadripper PRO 3945WX as it consumes less power: 225W vs. 280W. Power consumption is especially important for laptops. Also, when choosing a processor cooling system, you need to 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

If you plan to use the processor not only for gaming, but also for streaming, video rendering or video editing, programming, machine learning, then the main parameter for you is its performance in multi-threaded mode. In this mode, the processor turns on all threads and cores that it has to the maximum to reach maximum efficiency. 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 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 EPYC 7643	AMD Ryzen Threadripper PRO 3945WX
Cinbench 15 Single-core	166	199
Cinbench 15 Multi-core	6845	5712
Cinbench 20 Single-core	312	463
Cinbench 20 Multi-core	14509	12983
Cinbench 23 Single-core	767	1108
Cinbench 23 Multi-core	37728	32841

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

	AMD EPYC 7643	AMD Ryzen Threadripper PRO 3945WX
Single-Core	1615	2750
Multi-Core	55343	34755

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

	AMD EPYC 7643	AMD Ryzen Threadripper PRO 3945WX
Single-Core	1222	1284
Multi-Core	35055	14251

Comparison of specifications

In the specification comparison table, the most helpful will be the release date of the processor and the possibility of overclocking it. The newer the processor, the longer it will last you. And the easier it will be to upgrade the system later. The same can be said about overclocking. When the processor can be overclocked, increasing its performance, then it will continue to maintain maximum FPS in new games. Accordingly, there is no longer a need to buy a new CPU to enjoy the games any longer. The economy are obvious!

	AMD EPYC 7643	AMD Ryzen Threadripper PRO 3945WX
Announcement date	March 15, 2021	July 14, 2020
Type	Server	Desktop
Socket	SP3	sTRX4
Core name	Milan	Matisse
Architecture	Zen 3	Zen 2
Generation	3	2
Turbo Frequency	3.6 MHz	4.3 MHz
Frequency	2.3 MHz	4 MHz
Cores	48	12
Threads	96	24
Bus rate
Bit	64	64
Lithography	7 nm	7 nm
Transistors count	76000 millions	22600 millions
Power consumption (TDP)	225 W	280 W
Memory type	DDR4	DDR4
Max. Memory
Memory Frequency	3200	3200
Memory bandwidth	204.8 GB/s
L1 cache		768KB
L2 cache		6MB
L3 cache	256MB	64MB
Overclocking	No	No
Supports ECC	No	No
Part number	100-000000326 100-100000326WOF	100-000000168

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Ryzen Threadripper PRO 3945WX is 42% better than EPYC 7643 in terms of CPU frequency. Another difference is that EPYC 7643 has 36 more core than Ryzen Threadripper PRO 3945WX. 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 EPYC 7643 is better: 23
The number of parameters for which AMD Ryzen Threadripper PRO 3945WX is better: 10
However, it should be realized that all the figures in the table above do not mean that taking them into account you should entirely trust a simple comparison of these figures. Be sure to watch the testing video and read the opinion of real owners of AMD EPYC 7643 and AMD Ryzen Threadripper PRO 3945WX before deciding which of the CPUs to buy for gaming.

AMD EPYC 7643 - all data

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

• AMD EPYC 7643 specs and review.

• AMD Ryzen Threadripper PRO 3945WX specs and review.