Intel Core i9-12900K vs Intel Core i5-12400T

Processor comparisons   28-09-2022
   If you can't decide which CPU to buy, you can make a choice by looking at the Intel Core i9-12900K vs Intel Core i5-12400T tests and understand which is better for games or normal use for machine learning, video editing, rendering, programming, streaming. Here you can find useful information from real streaming and video editing tests or several benchmarks. A careful review of all the specifications, 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 software tests like 7zip, World of Tanks enCore Benchmark, GeekBench 6, 5.2, MATLAB, Blender, WPrime, PCMark 10, Cinebench 23 (20, 15), VeraCrypt, RealBench, UserBenchmark, DaVinci Resolve Studio, SuperPi, AIDA64, 3DMark, Gears 5, PassMark, Dolphin Emulator, Furmark, Handbrake, Blender, Prime95.
   Gaming performance of processors in:

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

After looking at the data these benchmarks and videos, you already be able to figure out which processor is better to buy for gaming Intel Core i5-12400T or Intel Core i9-12900K.

Summary benchmark results

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

Core i9-12900K

67%

Core i5-12400T

57%

This shows the performance of the processors in single-threaded and multi-threaded mode. In this comparison, Core i9-12900K is 14% better than Core i5-12400T. The data source is several popular tests. Detailed information can be found below.

Gaming performance
Summary result of all game benchmarks.

Core i9-12900K

64%

Core i5-12400T

55%

The maximum result in this parameter is 100 percent, which is the performance of the most powerful processor currently available. And of course, 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 little game result, 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: Resident Evil 7 Biohazard, DOTA 2A, League of Legends (LOL), The Witcher 3: Wild Hunt, Battlefield V, Microsoft Flight Simulator, PlayerUnknown's Battlegrounds (PUBG), Hitman 3, Counter-Strike: Global Offensive (CS GO), Half-Life: Alyx, Shadow of the Tomb Raider, Metro Exodus, Monster Hunter World, Ghostrunner, Horizon Zero Dawn, NBA 2K20, Forza Horizon 4, Control.

Gaming benchmark

Fortnite	113.8	97.3
Valorant	129.3	110.5
Cyberpunk 2077	72.4	61.9
Apex Legends	121.5	103.9
Call of Duty Warzone	97.0	82.9
Overwatch	104.7	89.5
Red Dead Redemption 2	89.2	76.3
DOOM Eternal	64.6	55.3
Warzone	100.8	86.2
Assassin's Creed	108.6	92.9
Valheim	107.3	91.7

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 participating in the comparisons not only were the equipped with 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. 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 i9-12900K

97%

Core i5-12400T

166%

To make a final decision on which processor is better, you should also consider the generation of its core. It is clear that the newer the generation, the better the performance of the processor in games and benchmarks, as well as its energy efficiency. In this case the Core i5-12400T is more energy efficient than the Core i9-12900K since it has less power consumption: 125W vs. 35W. Power consumption is especially important for laptops. Also, when choosing a processor cooling system, you need to 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

If 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, the CPU turns on all cores and threads that it has to the maximum to achieve maximum efficiency. 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 program that you are going to use on your computer can work in 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 i9-12900K	Intel Core i5-12400T
Cinbench 15 Single-core	489	330
Cinbench 15 Multi-core	5150	2416
Cinbench 20 Single-core	816	792
Cinbench 20 Multi-core	11450	5486
Cinbench 23 Single-core	2896	1851
Cinbench 23 Multi-core	32950	18083

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

	Intel Core i9-12900K	Intel Core i5-12400T
Single-Core	7546	4338
Multi-Core	56332	25317

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

	Intel Core i9-12900K	Intel Core i5-12400T
Single-Core	3641	1749
Multi-Core	25262	9090

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 in the future. The same can be said about overclocking. If the processor can be overclocked, thereby increasing its performance, then it will continue to maintain maximum FPS in new games. The economy 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 i9-12900K	Intel Core i5-12400T
Announcement date	July 21, 2021	January 07, 2022
Type	Desktop	Desktop
Socket	FCLGA1700	FCLGA1700
Core name	Alder Lake	Alder Lake
Architecture	x86	x86
Generation	12	12
Turbo Frequency	5.2 MHz	4.2 MHz
Frequency	3.9 MHz	3.3 MHz
Cores	16	6
Threads	24	12
Bus rate	16 GT/s	8 GT/s
Bit	64	64
Lithography	7 nm	7 nm
Transistors count	12400 millions	10200 millions
Power consumption (TDP)	125 W	35 W
Memory type	Up to DDR5 4800 MT/s Up to DDR4 3200 MT/s	Up to DDR5 4800 MT/s Up to DDR4 3200 MT/s
Max. Memory	128 Gb	128 Gb
Memory Frequency	6400
Memory bandwidth	76.8 GB/s	76.8 GB/s
L1 cache	2 MB
L2 cache	14 MB	7.5 MB
L3 cache	30 MB	18 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 i9-12900K is 15% better than Core i5-12400T in terms of CPU frequency. Another difference is that Core i9-12900K has 10 more core than Core i5-12400T. 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 i9-12900K is better: 29
The number of parameters for which Intel Core i5-12400T is better: 4
However, it should be understood that all the data in the article above do not mean that taking them into account you should undividedly trust a simple comparison of these numbers. Be sure to watch the testing video and read the reviews of of people who bought Intel Core i9-12900K and Intel Core i5-12400T before making a selection which CPU to buy for gaming and which not.

Intel Core i9-12900K - all data

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

• Intel Core i9-12900K specs and review.

Intel Core i5-12400T - all data

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

• Intel Core i5-12400T specs and review.