Intel Core i9-9900 vs Intel Core i7-7820X

Processor comparisons   24-03-2021
   Perhaps you can't decide which processor to buy, you can make a decision by looking at the Intel Core i9-9900 vs Intel Core i7-7820X tests and understand which is better for games or simple use for video editing, machine learning, streaming, programming, rendering. Here is all information from real streaming and video editing tests or many benchmarks. A step-by-step analysis of all the technical characteristics, to make it easier to understand, is made by the table.
   From the video comparison, you can get the results of parallel examination in special testing software such as DaVinci Resolve Studio, SuperPi, Blender, Cinebench 23 (20, 15), UserBenchmark, 3DMark, PassMark, Prime95, GeekBench 6, 5.2, RealBench, Dolphin Emulator, Handbrake, AIDA64, Furmark, PCMark 10, MATLAB, Blender, VeraCrypt, 7zip, WPrime, Gears 5, World of Tanks enCore Benchmark.
   And how good the processors are in games:

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

After looking at the data of joint benchmarks and videos, you already be able to figure out which CPU is better to buy for gaming Intel Core i7-7820X or Intel Core i9-9900.

Summary benchmark results

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

Core i9-9900

55%

Core i7-7820X

55%

Gaming performance
Summary result of all game benchmarks.

Core i9-9900

55%

Core i7-7820X

55%

For the maximum in this test, the results of the most powerful processor in the site database are taken. 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. And if it seems to you 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 less popular games in which CPU comparisons were performed: Metro Exodus, Monster Hunter World, Shadow of the Tomb Raider, League of Legends (LOL), Resident Evil 7 Biohazard, Counter-Strike: Global Offensive (CS GO), The Witcher 3: Wild Hunt, Battlefield V, Ghostrunner, Half-Life: Alyx, Hitman 3, Forza Horizon 4, Control, Microsoft Flight Simulator, Horizon Zero Dawn, PlayerUnknown's Battlegrounds (PUBG), DOTA 2A, NBA 2K20.

Gaming benchmark

Fortnite	97.1	98.5
Valorant	110.4	111.9
Cyberpunk 2077	61.8	62.7
Apex Legends	103.7	105.2
Call of Duty Warzone	82.8	83.9
Overwatch	89.4	90.6
Red Dead Redemption 2	76.1	77.2
DOOM Eternal	55.2	55.9
Warzone	86.1	87.3
Assassin's Creed	92.7	94.0
Valheim	91.6	92.9

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: 2K, 4K or FullHD. So 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 compare it in one assembly with the video card that is installed in your computer.

Power consumption

Core i9-9900

74%

Core i7-7820X

32%

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 i9-9900 is more energy efficient than the Core i7-7820X since it has less power consumption: 65W vs. 140W. 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, video rendering or video editing, machine learning, programming, then the main parameter for you is its performance in multi-threaded mode. In this mode, to achieve maximum performance, the CPU includes all threads and cores 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 software you are going to use on your computer supports multi-threaded mode. Because there are still many programs that 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 i9-9900	Intel Core i7-7820X
Cinbench 15 Single-core	219	197
Cinbench 15 Multi-core	1931	1887
Cinbench 20 Single-core	518	498
Cinbench 20 Multi-core	4346	5155
Cinbench 23 Single-core	1284	1246
Cinbench 23 Multi-core	12205	12165

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

	Intel Core i9-9900	Intel Core i7-7820X
Single-Core	2864	2502
Multi-Core	17110	17305

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

	Intel Core i9-9900	Intel Core i7-7820X
Single-Core	1454	1357
Multi-Core	8933	10261

Comparison of specifications

In the specification comparison table, the processor release date and overclocking capability will be the most helpful. The later the processor is released, the longer it will last in your computer. 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, increasing its performance, then it will continue to maintain maximum FPS in the newest games. Accordingly, there is no longer a need to buy a new CPU to enjoy the games any longer. The savings are obvious!

	Intel Core i9-9900	Intel Core i7-7820X
Announcement date	April 01, 2019	April 01, 2017
Type	Desktop	Desktop
Socket	FCLGA1151-2	FCLGA2066
Core name	Coffee Lake	Skylake
Architecture	x86	x86
Generation	9	7
Turbo Frequency	5 MHz	4.3 MHz
Frequency	3.1 MHz	3.6 MHz
Cores	8	8
Threads	16	16
Bus rate	8 GT/s	8 GT/s
Bit	64	64
Lithography	14 nm	14 nm
Transistors count	8600 millions	8400 millions
Power consumption (TDP)	65 W	140 W
Memory type	DDR4-2666	DDR4-2666
Max. Memory	128 Gb	128 Gb
Memory Frequency
Memory bandwidth	41.6 GB/s	85 GB/s
L1 cache
L2 cache
L3 cache	16 MB	11 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. Here Core i7-7820X is 13% better than Core i9-9900 in terms of CPU frequency. 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 i9-9900 is better: 13
The number of parameters for which Intel Core i7-7820X is better: 16
Although it should be realized that all the figures in the text above do not mean that taking them into account you should entirely trust a simple comparison of these numbers. Better to watch the video tests and read the opinion of real owners of Intel Core i9-9900 and Intel Core i7-7820X before making a choice which of the processors to buy for gaming.

Intel Core i9-9900 - all data

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

• Intel Core i9-9900 specs and review.

Intel Core i7-7820X - all data

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

• Intel Core i7-7820X specs and review.