Intel Core i9-13900KS vs AMD EPYC 7643

Processor comparisons   29-09-2022
   You may have difficulties with the choice of a CPU, you will solve them by reading the full tests Intel Core i9-13900KS vs AMD EPYC 7643 and understand which is better for games or normal use for streaming, machine learning, programming, rendering, video editing. Here is useful information from real streaming and video editing tests or many benchmarks. A thorough review 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 parallel examination in software tests such as Blender, VeraCrypt, UserBenchmark, SuperPi, PassMark, AIDA64, WPrime, MATLAB, Prime95, Handbrake, Cinebench 23 (20, 15), Gears 5, PCMark 10, Blender, 7zip, Dolphin Emulator, 3DMark, World of Tanks enCore Benchmark, Furmark, GeekBench 6, 5.2, RealBench, DaVinci Resolve Studio.
   Gaming performance of CPUs in:

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

After looking at the data these benchmarks and videos, you already be able to figure out which processor is better to buy for gaming AMD EPYC 7643 or Intel Core i9-13900KS.

Summary benchmark results

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

Core i9-13900KS

73%

EPYC 7643

66%

The number of this parameter shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, Core i9-13900KS is 9% 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.

Core i9-13900KS

66%

EPYC 7643

70%

For the maximum in this test, the results of the most powerful processor in the site database are taken. And of course, this is a server processor, on which no one will play games. Because this processor costs several tens of thousands of dollars. Therefore, if you think that the selected CPU has a small game result, 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: Half-Life: Alyx, Shadow of the Tomb Raider, Counter-Strike: Global Offensive (CS GO), PlayerUnknown's Battlegrounds (PUBG), League of Legends (LOL), The Witcher 3: Wild Hunt, Resident Evil 7 Biohazard, Hitman 3, Forza Horizon 4, Ghostrunner, Control, Microsoft Flight Simulator, Monster Hunter World, Horizon Zero Dawn, Battlefield V, Metro Exodus, DOTA 2A, NBA 2K20.

Gaming benchmark

Fortnite	117.3	123.8
Valorant	133.2	140.6
Cyberpunk 2077	74.6	78.8
Apex Legends	125.2	132.2
Call of Duty Warzone	99.9	105.5
Overwatch	107.9	113.9
Red Dead Redemption 2	91.9	97.0
DOOM Eternal	66.6	70.3
Warzone	103.9	109.7
Assassin's Creed	111.9	118.1
Valheim	110.6	116.7

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 computers participating in the comparisons not only were the equipped with different video cards and different amounts of RAM. But users also tested them at different screen resolutions: 4K, 2K or FullHD. 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

Core i9-13900KS

71%

EPYC 7643

18%

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 Core i9-13900KS is more energy efficient than the EPYC 7643 as it consumes less power: 125W vs. 225W. Power consumption is particularly important for laptops. And TDP should be taken into account when choosing a processor cooling system. 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 plan to use the processor not only for gaming, but also for programming, machine learning, streaming, video rendering or video editing, then the main parameter for you is its performance in multi-threaded mode. In this mode, to achieve maximum performance, the CPU includes all cores and threads that it has. You will find out this data from the benchmark tables below. Before using the data from these tests, be sure to make sure that the software 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 turns out to be unnecessary.
Cinebench 23, 20 an 15
The results of this benchmark show Single-threaded and Multi-threaded CPU performance

	Intel Core i9-13900KS	AMD EPYC 7643
Cinbench 15 Single-core	631	166
Cinbench 15 Multi-core	6774	6845
Cinbench 20 Single-core	1056	312
Cinbench 20 Multi-core	15135	14509
Cinbench 23 Single-core	3757	767
Cinbench 23 Multi-core	43688	37728

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

	Intel Core i9-13900KS	AMD EPYC 7643
Single-Core	3134	1615
Multi-Core	76304	55343

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

	Intel Core i9-13900KS	AMD EPYC 7643
Single-Core	2675	1222
Multi-Core	28679	35055

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.

	Intel Core i9-13900KS	AMD EPYC 7643
Announcement date	October 12, 2022	March 15, 2021
Type	Desktop	Server
Socket	FCLGA1700	SP3
Core name	Raptor Lake	Milan
Architecture	x86	Zen 3
Generation	13	3
Turbo Frequency	5.9 MHz	3.6 MHz
Frequency	4.5 MHz	2.3 MHz
Cores	24	48
Threads	32	96
Bus rate	16 GT/s
Bit	64	64
Lithography	7 nm	7 nm
Transistors count	14200 millions	76000 millions
Power consumption (TDP)	125 W	225 W
Memory type	Up to DDR5 5600 MT/s Up to DDR4 3200 MT/s	DDR4
Max. Memory	128 Gb
Memory Frequency	6500	3200
Memory bandwidth	89.6 GB/s	204.8 GB/s
L1 cache	2 MB
L2 cache	8 MB
L3 cache	36 MB	256MB
Overclocking	Yes	No
Supports ECC	Yes	No
Part number	Expansion Options	100-000000326 100-100000326WOF

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Core i9-13900KS is 48% better than EPYC 7643 in terms of CPU frequency. Another difference is that EPYC 7643 has 24 more core than Core i9-13900KS. Also keep in mind that high CPU frequency affects battery life through power consumption (relevant for laptops).

Result:
The number of parameters for which Intel Core i9-13900KS is better: 22
The number of parameters for which AMD EPYC 7643 is better: 16
Although it should be understood that all the figures that you have looked at here do not mean that taking them into account you should undividedly trust a simple quantitative comparison. Better to watch benchmarks video and read the opinion of of people who bought Intel Core i9-13900KS and AMD EPYC 7643 before making a choice which of the processors to buy for gaming.

Intel Core i9-13900KS - all data

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

• Intel Core i9-13900KS specs and review.

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.