Intel Core i7-7820X vs Intel Core i7-8700

Processor comparisons   24-03-2021
   You may have difficulties with the choice of a CPU, you will solve them by reading the detailed tests Intel Core i7-7820X vs Intel Core i7-8700 and see which is better for games or normal use for rendering, video editing, programming, machine learning, streaming. Here is useful information from different benchmarks or real video editing and streaming tests. A thorough analysis of all the specifications, to make it easier to understand, is summarized in the table.
   From the video comparison, you can get the results of joint testing in special test applications like Handbrake, SuperPi, AIDA64, VeraCrypt, MATLAB, WPrime, Prime95, GeekBench 6, 5.2, 3DMark, 7zip, UserBenchmark, RealBench, DaVinci Resolve Studio, Gears 5, PassMark, Blender, Blender, World of Tanks enCore Benchmark, PCMark 10, Dolphin Emulator, Cinebench 23 (20, 15), Furmark.
   Gaming performance of CPUs in:

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

After looking at the data of joint benchmarks and videos, you can already make an briefed decision about which processor is better to buy for gaming Intel Core i7-8700 or Intel Core i7-7820X.

Summary benchmark results

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

Core i7-7820X

55%

Core i7-8700

53%

The number of this parameter shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, Core i7-7820X is 3% better than Core i7-8700. The data source is several popular tests. More detailed information of the benchmarks is below.

Gaming performance
Summary result of all game benchmarks.

Core i7-7820X

55%

Core i7-8700

53%

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. And if it seems to you that the selected CPU has a small game result, just 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, The Witcher 3: Wild Hunt, DOTA 2A, Monster Hunter World, Resident Evil 7 Biohazard, Horizon Zero Dawn, NBA 2K20, Control, Microsoft Flight Simulator, Ghostrunner, Metro Exodus, Counter-Strike: Global Offensive (CS GO), Forza Horizon 4, League of Legends (LOL), PlayerUnknown's Battlegrounds (PUBG), Hitman 3, Battlefield V, Shadow of the Tomb Raider.

Gaming benchmark

Fortnite	98.5	94.8
Valorant	111.9	107.7
Cyberpunk 2077	62.7	60.3
Apex Legends	105.2	101.2
Call of Duty Warzone	83.9	80.8
Overwatch	90.6	87.2
Red Dead Redemption 2	77.2	74.3
DOOM Eternal	55.9	53.8
Warzone	87.3	84.0
Assassin's Creed	94.0	90.4
Valheim	92.9	89.4

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 amounts of RAM and different video cards. But users also tested them at different screen resolutions: FullHD, 2K 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 get acquainted with the benchmarks that are made with the same video card that is installed in your computer.

Power consumption

Core i7-7820X

32%

Core i7-8700

64%

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 i7-8700 is more energy efficient than the Core i7-7820X since it has less power consumption: 140W vs. 65W. Power consumption is especially important for laptops. And TDP should be taken into account when choosing a processor cooling system. 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

For example you want to use the processor not only for gaming, but also for machine learning, streaming, video rendering or video editing, programming, then first of all you need to pay attention to the performance in multi-threaded mode. In this mode, to reach maximum performance, the CPU uses all threads and cores 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 make sure that the program that you are going to use on your computer can work in multi-threaded mode. Since 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 i7-7820X	Intel Core i7-8700
Cinbench 15 Single-core	197	203
Cinbench 15 Multi-core	1887	1434
Cinbench 20 Single-core	498	481
Cinbench 20 Multi-core	5155	3547
Cinbench 23 Single-core	1246	1146
Cinbench 23 Multi-core	12165	7969

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

	Intel Core i7-7820X	Intel Core i7-8700
Single-Core	2502	2706
Multi-Core	17305	13125

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

	Intel Core i7-7820X	Intel Core i7-8700
Single-Core	1357	1260
Multi-Core	10261	6618

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 in your computer. And the easier it will be to upgrade the system in the future. 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 in the newest games. The savings are obvious! It turns out that there is no longer a need to buy a new CPU to enjoy the games any longer.

	Intel Core i7-7820X	Intel Core i7-8700
Announcement date	April 01, 2017	October 01, 2017
Type	Desktop	Desktop
Socket	FCLGA2066	FCLGA1151-2
Core name	Skylake	Coffee Lake
Architecture	x86	x86
Generation	7	8
Turbo Frequency	4.3 MHz	4.6 MHz
Frequency	3.6 MHz	3.2 MHz
Cores	8	6
Threads	16	12
Bus rate	8 GT/s	8 GT/s
Bit	64	64
Lithography	14 nm	14 nm
Transistors count	8400 millions	3200 millions
Power consumption (TDP)	140 W	65 W
Memory type	DDR4-2666	DDR4-2666
Max. Memory	128 Gb	128 Gb
Memory Frequency
Memory bandwidth	85 GB/s	41.6 GB/s
L1 cache
L2 cache
L3 cache	11 MB	12 MB
Overclocking	No	Yes
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 11% better than Core i7-8700 in terms of CPU frequency. Another difference is that Core i7-7820X has 2 more core than Core i7-8700. 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 i7-7820X is better: 24
The number of parameters for which Intel Core i7-8700 is better: 8
All the data in the table above do not mean that taking them into account you should undividedly trust a simple quantitative comparison. Better to watch the video tests and read the opinion of of people who bought Intel Core i7-7820X and Intel Core i7-8700 before deciding which CPU to buy for gaming and which not.

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.

• Intel Core i7-8700 specs and review.