Intel Core i7-7900X vs Intel Core i9-9820X

Processor comparisons 23-03-2021

   Perhaps you can't decide which processor to buy, you can make a choice after reading the detailed tests Intel Core i7-7900X vs Intel Core i9-9820X and see which is better for games or simple use for machine learning, video editing, rendering, streaming, programming. Here you can find all information from several benchmarks or real streaming and video editing tests. A careful review of all the technical characteristics, to make it easier to read, is made by the table.
   From the video comparison, you can get the results of parallel examination in software tests like Dolphin Emulator, PCMark 10, Blender, Prime95, Gears 5, World of Tanks enCore Benchmark, Cinebench 23 (20, 15), DaVinci Resolve Studio, Furmark, AIDA64, MATLAB, RealBench, UserBenchmark, VeraCrypt, 3DMark, Handbrake, WPrime, 7zip, PassMark, GeekBench 6, 5.2, Blender, SuperPi.
   Gaming performance of processors in:

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

After reading the results these benchmarks and videos, you already be able to figure out which processor is better to buy for gaming Intel Core i9-9820X or Intel Core i7-7900X.

Summary benchmark results

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

Core i7-7900X

55%

Core i9-9820X

56%

This parameter shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, Core i9-9820X is 1% better than Core i7-7900X. The data source is several popular tests. Detailed information can be found below.

Gaming performance
Summary result of all game benchmarks.

Core i7-7900X

57%

Core i9-9820X

56%

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

Gaming benchmark

Fortnite	100.5	100.2
Valorant	114.2	113.8
Cyberpunk 2077	63.9	63.8
Apex Legends	107.3	107.0
Call of Duty Warzone	85.6	85.4
Overwatch	92.5	92.2
Red Dead Redemption 2	78.8	78.6
DOOM Eternal	57.1	56.9
Warzone	89.1	88.8
Assassin's Creed	95.9	95.6
Valheim	94.8	94.5

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: 2K, FullHD 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

Core i7-7900X

32%

Core i9-9820X

25%

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 i7-7900X is more energy efficient than the Core i9-9820X as it consumes less power: 140W vs. 165W. Power consumption is especially important for laptops. Also, when choosing a processor cooling system, you must know its TDP. It is necessary to calculate so that the TDP data specified in the cooler specification is greater than the TDP of the compared processor.

Software benchmarks

If you want to use the processor not only for gaming, but also for video rendering or video editing, streaming, machine learning, programming, then the main parameter for you is its performance in multi-threaded mode. In this mode, to reach maximum performance, the processor uses all cores and threads that it has. You will learn this data from the benchmark tables below. Before using the data from these tests, be sure to check whether the program you are going to use on your computer supports multi-threaded mode. Since there are still many programs that can use only one core to run, and all the benefit of multi-core mode are unused.

Cinebench 23, 20 an 15
The results of this benchmark show Single-threaded and Multi-threaded CPU performance

	Intel Core i7-7900X	Intel Core i9-9820X
Cinbench 15 Single-core	225	184
Cinbench 15 Multi-core	2318	1987
Cinbench 20 Single-core	518	422
Cinbench 20 Multi-core	5234	4677
Cinbench 23 Single-core	1295	1320
Cinbench 23 Multi-core	12538	14283

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

	Intel Core i7-7900X	Intel Core i9-9820X
Single-Core	2583	2448
Multi-Core	19299	20453

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

	Intel Core i7-7900X	Intel Core i9-9820X
Single-Core	1370	1256
Multi-Core	12235	11942

Comparison of specifications

In the specification comparison table, the processor release date and overclocking capability will be the most helpful. The newer the processor, the longer it will last you. And the easier it will be to upgrade the system later. The same benefits from the presence of overclocking. If the processor can be overclocked, thereby increasing its performance, then it will still be able to produce maximum FPS in the newest games. Accordingly, you do not need to buy a new CPU to enjoy the games any longer. The economy are obvious!

	Intel Core i7-7900X	Intel Core i9-9820X
Announcement date	April 01, 2017	October 01, 2018
Type	Desktop	Desktop
Socket	FCLGA2066	FCLGA2066
Core name	Skylake	Skylake
Architecture	x86	x86
Generation	7	9
Turbo Frequency	4.3 MHz	4.1 MHz
Frequency	3.3 MHz	3.3 MHz
Cores	10	10
Threads	20	20
Bus rate	8 GT/s	8 GT/s
Bit	64	64
Lithography	14 nm	14 nm
Transistors count	8400 millions	8600 millions
Power consumption (TDP)	140 W	165 W
Memory type	DDR4-2666	DDR4-2666
Max. Memory	128 Gb	128 Gb
Memory Frequency
Memory bandwidth	85 GB/s	85 GB/s
L1 cache
L2 cache
L3 cache	13.75 MB	16.5 MB
Overclocking	No	No
Supports ECC	No	No
Part number

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. 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 i7-7900X is better: 20
The number of parameters for which Intel Core i9-9820X is better: 7
Although it should be realized that all the number in the article above do not mean that taking them into account you should fully trust a simple comparison of these numbers. Be sure to watch the video tests and read the opinion of of people who bought Intel Core i7-7900X and Intel Core i9-9820X before making a selection which of the processors to buy for gaming.

Intel Core i7-7900X - all data

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

• Intel Core i7-7900X specs and review.

Intel Core i9-9820X - all data

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

• Intel Core i9-9820X specs and review.