AMD EPYC 7643 vs AMD EPYC 7763

Processor comparisons 25-03-2021

   If you are thinking about choosing a CPU, you will be able to make a decision after reading the detailed tests AMD EPYC 7643 vs AMD EPYC 7763 and see which is better for games or normal use for rendering, streaming, programming, video editing, machine learning. Here is all information from real video editing and streaming tests or several benchmarks. A thorough analysis of all the specifications, to make it easier to understand, is summarized in the table.
   From the comparison video, you can get the results of joint testing in special test applications like Furmark, UserBenchmark, GeekBench 6, 5.2, PCMark 10, Blender, SuperPi, VeraCrypt, Dolphin Emulator, World of Tanks enCore Benchmark, DaVinci Resolve Studio, Handbrake, Blender, Gears 5, PassMark, AIDA64, Cinebench 23 (20, 15), Prime95, RealBench, WPrime, 7zip, MATLAB, 3DMark.
   Gaming performance of processors in:

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

After looking at the data these benchmarks and videos, you already be able to know which processor is better to buy for gaming AMD EPYC 7763 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%

EPYC 7763

71%

The number of this parameter shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, EPYC 7763 is 7% better than EPYC 7643. The data source is several popular tests. More detailed information of the benchmarks is below.

Gaming performance
Summary result of all game benchmarks.

EPYC 7643

70%

EPYC 7763

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 play games. Because the cost of this processor reaches several tens of thousands of dollars. Therefore, if you think that the selected CPU has a low game result, look at the FPS that it produces in real games in the final table below.
List of less popular games in which CPU comparisons were performed: DOTA 2A, Battlefield V, Half-Life: Alyx, Metro Exodus, PlayerUnknown's Battlegrounds (PUBG), League of Legends (LOL), Control, Monster Hunter World, Ghostrunner, Horizon Zero Dawn, The Witcher 3: Wild Hunt, Microsoft Flight Simulator, NBA 2K20, Hitman 3, Shadow of the Tomb Raider, Counter-Strike: Global Offensive (CS GO), Forza Horizon 4, Resident Evil 7 Biohazard.

Gaming benchmark

Fortnite	123.8	110.0
Valorant	140.6	125.0
Cyberpunk 2077	78.8	70.0
Apex Legends	132.2	117.5
Call of Duty Warzone	105.5	93.8
Overwatch	113.9	101.3
Red Dead Redemption 2	97.0	86.3
DOOM Eternal	70.3	62.5
Warzone	109.7	97.5
Assassin's Creed	118.1	105.0
Valheim	116.7	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 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. Therefore, 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 get acquainted with the benchmarks that are made with the same video card that is installed in your computer.

Power consumption

EPYC 7643

18%

EPYC 7763

15%

To make a finishing 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 EPYC 7643 is more energy efficient than the EPYC 7763 since it has less power consumption: 225W vs. 280W. Power consumption is particularly important for laptops. Also, when choosing a processor cooling system, you must 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

For example you want to use the processor not only for gaming, but also for video rendering or video editing, machine learning, programming, streaming, then the main parameter for you is its performance in multi-threaded mode. In this mode, to achieve maximum efficiency, the CPU includes all cores and threads that it has. You will learn this data from the benchmark tables below. Before you take into account 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 can 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 EPYC 7643	AMD EPYC 7763
Cinbench 15 Single-core	166	210
Cinbench 15 Multi-core	6845	8667
Cinbench 20 Single-core	312	414
Cinbench 20 Multi-core	14509	21470
Cinbench 23 Single-core	767	970
Cinbench 23 Multi-core	37728	47776

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

	AMD EPYC 7643	AMD EPYC 7763
Single-Core	1615	2446
Multi-Core	55343	70081

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

	AMD EPYC 7643	AMD EPYC 7763
Single-Core	1222	1303
Multi-Core	35055	21589

Comparison of specifications

In the specification comparison table, the most useful 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 in the future. The same can be said about overclocking. If the processor can be overclocked, thereby increasing its performance, then it will continue to maintain maximum FPS in the newest games. Accordingly, you do not need to buy a new CPU to enjoy the games any longer. The savings are obvious!

	AMD EPYC 7643	AMD EPYC 7763
Announcement date	March 15, 2021	March 15, 2021
Type	Server	Server
Socket	SP3	SP3
Core name	Milan	Milan
Architecture	Zen 3	Zen 3
Generation	3	3
Turbo Frequency	3.6 MHz	3.5 MHz
Frequency	2.3 MHz	2.45 MHz
Cores	48	64
Threads	96	128
Bus rate
Bit	64	64
Lithography	7 nm	7 nm
Transistors count	76000 millions	86000 millions
Power consumption (TDP)	225 W	280 W
Memory type	DDR4	DDR4
Max. Memory
Memory Frequency	3200	3200
Memory bandwidth	204.8 GB/s	204.8 GB/s
L1 cache
L2 cache
L3 cache	256MB	256MB
Overclocking	No	No
Supports ECC	No	No
Part number	100-000000326 100-100000326WOF	100-000000312 100-100000312WOF

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here EPYC 7763 is 6% better than EPYC 7643 in terms of CPU frequency. Another difference is that EPYC 7763 has 16 more core than EPYC 7643. 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: 14
The number of parameters for which AMD EPYC 7763 is better: 13
Although it should be realized that all the number in the article above do not mean that taking them into account you should completely trust a simple quantitative comparison. Be sure to watch the video tests and read the opinion of of people who bought AMD EPYC 7643 and AMD EPYC 7763 before making a decision which processor to buy for gaming and which not.

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 EPYC 7763 - all data

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

• AMD EPYC 7763 specs and review.