Intel Core i5-6600K vs Intel Core i5-2400

Processor comparisons   04-02-2023
   You may have difficulties with the choice of a CPU, you will solve them by reading the full tests Intel Core i5-6600K vs Intel Core i5-2400 and see which is better for games or simple use for machine learning, video editing, programming, streaming, rendering. Here you can find all information from various benchmarks or real streaming and video editing tests. A careful analysis of all the technical characteristics, to make it easier to read, is presented in the form of the table.
   From the video comparison, you can get the results of parallel examination in synthetic type tests such as DaVinci Resolve Studio, 7zip, PCMark 10, GeekBench 6, 5.2, MATLAB, RealBench, Furmark, Prime95, UserBenchmark, PassMark, SuperPi, Cinebench 23 (20, 15), World of Tanks enCore Benchmark, AIDA64, Blender, VeraCrypt, Handbrake, Dolphin Emulator, WPrime, 3DMark, Blender, Gears 5.
   Gaming performance of CPUs in:

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

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 i5-2400 or Intel Core i5-6600K.

Summary benchmark results

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

Core i5-6600K

51%

Core i5-2400

51%

Gaming performance
Summary result of all game benchmarks.

Core i5-6600K

52%

Core i5-2400

51%

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. Therefore, if you think that the selected CPU has a small game result, just look at the FPS that it produces in real games in the final table below.
List of other games in which CPU comparisons were performed: NBA 2K20, League of Legends (LOL), Forza Horizon 4, Ghostrunner, Resident Evil 7 Biohazard, Monster Hunter World, DOTA 2A, Battlefield V, PlayerUnknown's Battlegrounds (PUBG), Metro Exodus, Half-Life: Alyx, Horizon Zero Dawn, The Witcher 3: Wild Hunt, Shadow of the Tomb Raider, Microsoft Flight Simulator, Control, Hitman 3, Counter-Strike: Global Offensive (CS GO).

Gaming benchmark

Fortnite	92.9	90.5
Valorant	105.5	102.9
Cyberpunk 2077	59.1	57.6
Apex Legends	99.2	96.7
Call of Duty Warzone	79.1	77.2
Overwatch	85.5	83.3
Red Dead Redemption 2	72.8	71.0
DOOM Eternal	52.8	51.4
Warzone	82.3	80.2
Assassin's Creed	88.6	86.4
Valheim	87.6	85.4

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 tested computers 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. 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 i5-6600K

51%

Core i5-2400

26%

To make a finishing 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 i5-6600K is more energy efficient than the Core i5-2400 since it has less power consumption: 91W vs. 95W. Power consumption is especially important for laptops. Also, when choosing a processor cooling system, you must know its TDP. It is necessary to count so that the TDP data specified in the cooler specification is 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, machine learning, video rendering or video editing, programming, then the main parameter for you is its performance in multi-threaded mode. In this mode, to reach maximum efficiency, the CPU turns on all threads and cores that it has. You will find out this data from the benchmark tables below. Before using the data from these tests, be sure to find out whether the software that you are going to use on your computer can work in multi-threaded mode. Since there are still many programs that use only one core to work, 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 i5-6600K	Intel Core i5-2400
Cinbench 15 Single-core	166	104
Cinbench 15 Multi-core	600	378
Cinbench 20 Single-core	395	267
Cinbench 20 Multi-core	1572	941
Cinbench 23 Single-core	1041	635
Cinbench 23 Multi-core	3965	2350

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

	Intel Core i5-6600K	Intel Core i5-2400
Single-Core	2356	1589
Multi-Core	6286	3799

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

	Intel Core i5-6600K	Intel Core i5-2400
Single-Core	1399	756
Multi-Core	4766	2483

Comparison of specifications

In the specification comparison table, the most helpful will be the release date of the processor and the possibility of overclocking it. The newer the processor, 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. When the processor can be overclocked, increasing its performance, then it will continue to maintain maximum FPS in the newest games. The economy are obvious! It turns out that you do not need to buy a new CPU to enjoy the games any longer.

	Intel Core i5-6600K	Intel Core i5-2400
Announcement date	September 26, 2015	October 01, 2010
Type	Desktop	Desktop
Socket	FCLGA1151	LGA1155
Core name	Skylake	Sandy Bridge
Architecture	x86	x86
Generation	6	2
Turbo Frequency	3.9 MHz	3.4 MHz
Frequency	3.5 MHz	3.1 MHz
Cores	4	4
Threads	4	4
Bus rate	8 GT/s	5 GT/s
Bit	64	64
Lithography	14 nm	32 nm
Transistors count	2460 millions	2480 millions
Power consumption (TDP)	91 W	95 W
Memory type	DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V	DDR3 1066/1333
Max. Memory	64 Gb	32 Gb
Memory Frequency
Memory bandwidth	34.1 GB/s	21 GB/s
L1 cache
L2 cache
L3 cache	6 MB	6 MB
Overclocking	No	Yes
Supports ECC	No	No
Part number	Expansion Options

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Core i5-6600K is 11% better than Core i5-2400 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 i5-6600K is better: 30
The number of parameters for which Intel Core i5-2400 is better: 2
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 totally trust a simple comparison of these numbers. Be sure to watch the testing video and read the opinion of of people who bought Intel Core i5-6600K and Intel Core i5-2400 before making a choice which CPU to buy for gaming and which not.

Intel Core i5-6600K - all data

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

• Intel Core i5-6600K specs and review.

• Intel Core i5-2400 specs and review.