AMD EPYC 7742 vs AMD Ryzen 9 3900XT

Processor comparisons   23-03-2021
   Let's say you can't decide which processor to buy, you can make a decision by looking at the AMD EPYC 7742 vs AMD Ryzen 9 3900XT tests and decide which is better for games or simple use for streaming, programming, video editing, rendering, machine learning. Here you can find all information from real streaming and video editing tests or several benchmarks. A careful review 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 such as Furmark, SuperPi, VeraCrypt, WPrime, Prime95, 3DMark, PCMark 10, RealBench, UserBenchmark, Gears 5, Blender, Blender, DaVinci Resolve Studio, AIDA64, MATLAB, World of Tanks enCore Benchmark, Handbrake, Cinebench 23 (20, 15), 7zip, GeekBench 6, 5.2, Dolphin Emulator, PassMark.
   Gaming performance of CPUs in:

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

After reading the results of joint benchmarks and videos, you can already make an informed decision about which CPU is better to buy for gaming AMD Ryzen 9 3900XT or AMD EPYC 7742.

Summary benchmark results

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

EPYC 7742

70%

Ryzen 9 3900XT

60%

This parameter shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, EPYC 7742 is 14% better than Ryzen 9 3900XT. The data source is several popular tests. More detailed information of the benchmarks is below.

Gaming performance
Summary result of all game benchmarks.

EPYC 7742

78%

Ryzen 9 3900XT

57%

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

Gaming benchmark

Fortnite	137.6	101.5
Valorant	156.4	115.3
Cyberpunk 2077	87.6	64.6
Apex Legends	147.0	108.4
Call of Duty Warzone	117.3	86.5
Overwatch	126.7	93.4
Red Dead Redemption 2	107.9	79.6
DOOM Eternal	78.2	57.7
Warzone	122.0	90.0
Assassin's Creed	131.3	96.9
Valheim	129.8	95.7

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 video cards and different amounts of RAM. 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. 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

EPYC 7742

16%

Ryzen 9 3900XT

44%

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 Ryzen 9 3900XT is more energy efficient than the EPYC 7742 as it consumes less power: 225W vs. 105W. 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, machine learning, video rendering or video editing, programming, then the main parameter for you is its performance in multi-threaded mode. In this mode, to reach maximum efficiency, the CPU turns on 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 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 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 7742	AMD Ryzen 9 3900XT
Cinbench 15 Single-core	202	219
Cinbench 15 Multi-core	8334	3192
Cinbench 20 Single-core	398	539
Cinbench 20 Multi-core	20644	7244
Cinbench 23 Single-core	933	1354
Cinbench 23 Multi-core	45938	18511

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

	AMD EPYC 7742	AMD Ryzen 9 3900XT
Single-Core	2352	2772
Multi-Core	67386	33164

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

	AMD EPYC 7742	AMD Ryzen 9 3900XT
Single-Core	1091	1403
Multi-Core	48624	13238

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 in your computer. And the easier it will be to upgrade the system in the future. The same can be said about overclocking. If the processor can be overclocked, thereby increasing its performance, then it will still be able to produce maximum FPS in new games. Accordingly, you do not need to buy a new CPU to enjoy the games any longer. The savings are obvious!

	AMD EPYC 7742	AMD Ryzen 9 3900XT
Announcement date	April 01, 2019	July 19, 2020
Type	Server	Desktop
Socket	SP3	AM4
Core name	Rome	Matisse
Architecture	Zen 2	Zen 2
Generation	2	3
Turbo Frequency	3.4 MHz	4.7 MHz
Frequency	2.25 MHz	3.8 MHz
Cores	64	12
Threads	128	24
Bus rate
Bit	64	64
Lithography	7 nm	7 nm
Transistors count	86000 millions	7800 millions
Power consumption (TDP)	225 W	105 W
Memory type	DDR4	DDR4
Max. Memory
Memory Frequency		3200
Memory bandwidth
L1 cache
L2 cache		6MB
L3 cache	256MB	64MB
Overclocking	No	Yes
Supports ECC	No	No
Part number	100-000000053 100-100000053WOF	100-100000277WOF

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Ryzen 9 3900XT is 40% better than EPYC 7742 in terms of CPU frequency. Another difference is that EPYC 7742 has 52 more core than Ryzen 9 3900XT. 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 7742 is better: 19
The number of parameters for which AMD Ryzen 9 3900XT is better: 14
Although it should be understood that the summary data in the text above do not mean that you should be guided entirely by them and trust a simple comparison of these figures. Be sure to watch the testing video and read the reviews of real owners of AMD EPYC 7742 and AMD Ryzen 9 3900XT before making a choice which processor to buy for gaming and which not.

AMD EPYC 7742 - all data

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

• AMD EPYC 7742 specs and review.

AMD Ryzen 9 3900XT - all data

• Cinebench r15 score
• Cinebench r20 score
• Cinebench r23 score
• GeekBench 6, 5.2 score
• DOOM Eternal gaming benchmark
• PUBG gaming benchmark
• Apex Legends gaming benchmark
• Fortnite gaming benchmark
• Valorant gaming benchmark
• GTA 5 gaming benchmark
• Call of Duty: Warzone gaming benchmark
• Roblox gaming benchmark
• Overwatch gaming benchmark
• Cyberpunk 2077 gaming benchmark
• Red Dead Redemption 2 gaming benchmark
• Assassin's Creed gaming benchmark

• AMD Ryzen 9 3900XT specs and review.