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

Processor comparisons   23-03-2021
   For example you can't decide which CPU to buy, you can make a choice by looking at the Intel Core i9-9820X vs Intel Core i9-7900X tests and decide which is better for games or normal use for video editing, streaming, rendering, programming, machine learning. Here is useful information from different benchmarks or real video editing and streaming tests. A thorough review of all the specifications, to make it easier to understand, is made by the table.
   From the comparison video, you can get the results of parallel examination in software tests such as SuperPi, Gears 5, DaVinci Resolve Studio, Handbrake, Furmark, PassMark, PCMark 10, WPrime, 7zip, Dolphin Emulator, Prime95, Blender, RealBench, Blender, 3DMark, VeraCrypt, Cinebench 23 (20, 15), MATLAB, AIDA64, UserBenchmark, World of Tanks enCore Benchmark, GeekBench 6, 5.2.
   Gaming performance of CPUs in:

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

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

Summary benchmark results

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

Core i9-9820X

56%

Core i9-7900X

56%

Gaming performance
Summary result of all game benchmarks.

Core i9-9820X

56%

Core i9-7900X

57%

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

Gaming benchmark

Fortnite	100.2	100.3
Valorant	113.8	114.0
Cyberpunk 2077	63.8	63.8
Apex Legends	107.0	107.2
Call of Duty Warzone	85.4	85.5
Overwatch	92.2	92.3
Red Dead Redemption 2	78.6	78.7
DOOM Eternal	56.9	57.0
Warzone	88.8	88.9
Assassin's Creed	95.6	95.8
Valheim	94.5	94.6

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 that were in the comparisons not only did they have different video cards and different amounts of RAM. But users also tested them at different screen resolutions: 4K, 2K or FullHD. 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 get acquainted with the benchmarks that are made with the same video card that is installed in your computer.

Power consumption

Core i9-9820X

25%

Core i9-7900X

29%

To make a final decision 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 i9-7900X is more energy efficient than the Core i9-9820X since it has less power consumption: 165W vs. 140W. Power consumption is especially 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

If you plan to use the processor not only for gaming, but also for programming, machine learning, video editing or video rendering, streaming, then first of all you need to pay attention to the 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 performance. You will find out this data from the benchmark tables below. Before using the data from these tests, be sure to check whether the software you are going to use on your computer supports multi-threaded mode. Since there are still many programs that 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

	Intel Core i9-9820X	Intel Core i9-7900X
Cinbench 15 Single-core	184	188
Cinbench 15 Multi-core	1987	2194
Cinbench 20 Single-core	422	461
Cinbench 20 Multi-core	4677	5286
Cinbench 23 Single-core	1320	1222
Cinbench 23 Multi-core	14283	14998

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

	Intel Core i9-9820X	Intel Core i9-7900X
Single-Core	2448	2579
Multi-Core	20453	21477

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

	Intel Core i9-9820X	Intel Core i9-7900X
Single-Core	1256	1237
Multi-Core	11942	12083

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. When the processor can be overclocked, increasing its performance, then it will continue to maintain maximum FPS even in the newest games. The savings are obvious! Accordingly, you do not need to buy a new CPU to enjoy the games any longer.

	Intel Core i9-9820X	Intel Core i9-7900X
Announcement date	October 01, 2018	April 01, 2017
Type	Desktop	Desktop
Socket	FCLGA2066	FCLGA2066
Core name	Skylake	Skylake
Architecture	x86	x86
Generation	9	10
Turbo Frequency	4.1 MHz	4.3 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	8600 millions	7800 millions
Power consumption (TDP)	165 W	140 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	16.5 MB	13.75 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 i9-9820X is better: 5
The number of parameters for which Intel Core i9-7900X is better: 21
Although it should be understood that all the figures in the text above do not mean that taking them into account you should completely trust a simple comparison of these numbers. Better to watch the video tests and read the opinion of of people who bought Intel Core i9-9820X and Intel Core i9-7900X before making a selection which of the processors to buy for gaming.

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.

Intel Core i9-7900X - all data

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

• Intel Core i9-7900X specs and review.