Intel Core i3-9350K vs Intel Core i5-8400

Processor comparisons   17-03-2021
   Perhaps you can't decide which processor to buy, you can make a choice after reading the comprehensive tests Intel Core i3-9350K vs Intel Core i5-8400 and understand which is better for games or simple use for programming, machine learning, rendering, video editing, streaming. Here is all information from different benchmarks or real streaming and video editing tests. A thorough review of all the specifications, to make it easier to understand, is made by the table.
   From the video comparison, you can get the results of parallel examination in software tests such as Gears 5, Blender, Blender, MATLAB, SuperPi, Prime95, Handbrake, GeekBench 6, 5.2, DaVinci Resolve Studio, PCMark 10, RealBench, 3DMark, Furmark, Dolphin Emulator, VeraCrypt, 7zip, UserBenchmark, World of Tanks enCore Benchmark, AIDA64, Cinebench 23 (20, 15), PassMark, WPrime.
   And how good the processors are in games:

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

After looking at the data these benchmarks and videos, you can already make an informed decision about which CPU is better to buy for gaming Intel Core i5-8400 or Intel Core i3-9350K.

Summary benchmark results

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

Core i3-9350K

52%

Core i5-8400

52%

Gaming performance
Summary result of all game benchmarks.

Core i3-9350K

52%

Core i5-8400

53%

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

Gaming benchmark

Fortnite	93.2	93.5
Valorant	105.9	106.3
Cyberpunk 2077	59.3	59.5
Apex Legends	99.5	99.9
Call of Duty Warzone	79.4	79.7
Overwatch	85.7	86.1
Red Dead Redemption 2	73.0	73.3
DOOM Eternal	52.9	53.1
Warzone	82.6	82.9
Assassin's Creed	88.9	89.3
Valheim	87.9	88.2

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 i3-9350K

45%

Core i5-8400

56%

To make a finishing resolution 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 i5-8400 is more energy efficient than the Core i3-9350K as it consumes less power: 91W vs. 65W. Power consumption is especially important for laptops. Also, when choosing a processor cooling system, it will be useful 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 want to use the processor not only for gaming, but also for machine learning, streaming, programming, video rendering or video editing, then first of all you need to pay attention to the performance in multi-threaded mode. In this mode, to achieve maximum efficiency, the CPU includes all cores and threads that it has. 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 can 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 i3-9350K	Intel Core i5-8400
Cinbench 15 Single-core	165	161
Cinbench 15 Multi-core	832	954
Cinbench 20 Single-core	476	411
Cinbench 20 Multi-core	1833	2291
Cinbench 23 Single-core	1000	1023
Cinbench 23 Multi-core	3885	5457

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

	Intel Core i3-9350K	Intel Core i5-8400
Single-Core	2875	2442
Multi-Core	7773	9262

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

	Intel Core i3-9350K	Intel Core i5-8400
Single-Core	1254	1106
Multi-Core	5053	5408

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 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 new games. Accordingly, you do not need to buy a new CPU to enjoy the games any longer. The economy are obvious!

	Intel Core i3-9350K	Intel Core i5-8400
Announcement date	April 01, 2020	October 01, 2017
Type	Desktop	Desktop
Socket	FCLGA1151	FCLGA1151-2
Core name	Coffee Lake	Coffee Lake
Architecture	x86	x86
Generation	9	8
Turbo Frequency	4.6 MHz	4 MHz
Frequency	4 MHz	2.8 MHz
Cores	4	6
Threads	4	6
Bus rate	8 GT/s	8 GT/s
Bit	64	64
Lithography	14 nm	14 nm
Transistors count	2400 millions	2470 millions
Power consumption (TDP)	91 W	65 W
Memory type	DDR4-2400	DDR4-2666
Max. Memory	64 Gb	128 Gb
Memory Frequency
Memory bandwidth	37.5 GB/s	41.6 GB/s
L1 cache
L2 cache
L3 cache	8 MB	9 MB
Overclocking	Yes	Yes
Supports ECC	Yes	No
Part number

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Core i3-9350K is 30% better than Core i5-8400 in terms of CPU frequency. Another difference is that Core i5-8400 has 2 more core than Core i3-9350K. 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 i3-9350K is better: 9
The number of parameters for which Intel Core i5-8400 is better: 24
However, it should be realized that all the data that you have looked at here do not mean that taking them into account you should entirely trust a simple comparison of these figures. Be sure to watch the testing video and read the reviews of of people who bought Intel Core i3-9350K and Intel Core i5-8400 before making a choice which of the CPUs to buy for gaming.

• Intel Core i3-9350K specs and review.

• Intel Core i5-8400 specs and review.

Intel Core i3-9350K Processor Comparisons
• Vs Athlon Gold PRO 3150GE
• Vs Core i5-9300H
• Vs Core i5-1035G1
• Vs Core i7-6700
• Vs Core i7-4790K
• Vs Ryzen 5 3550H
• Vs Core i3-10300T
• Vs Core i7-7700
• Vs Ryzen 5 2400G
• Vs Core i5-10300H
• Vs Core i3-10100F
• Vs Core i3-10100
• Vs Core i7-1065G7
• Vs Core i7-6700K
• Vs Core i5-10200H
• Vs Ryzen 5 3350G
• Vs Ryzen 5 3400G
• Vs Core i5-9400
• Vs Core i5-9400F
• Vs Core i7-7700K
• Vs Core i5-1135G7
• Vs Core i3-10320
• Vs Core i7-8750H
• Vs Core i7-1165G7
• Vs Core i5-9600K
• Vs Ryzen 3 PRO 4200GE
• Vs Core i7-9750H
• Vs Ryzen 5 4500U
• Vs Core i7-1160G7
• Vs Core i5-1145G7
• Vs Athlon Gold PRO 3150G
• Vs Core i5-8300H
• Vs Ryzen 5 3450U
• Vs Ryzen 3 3200G
• Vs Ryzen 5 3500U
• Vs Core i7-4790
• Vs Core i7-4770K
• Vs Core i7-10510U
• Vs Core i7-4770
• Vs Core i7-7700HQ
• Vs Core i3-9100F
• Vs Core i5-10210U
• Vs Core i7-6700HQ
• Vs Core i7-3770K
• Vs Core i3-1115G4
• Vs Core i7-8565U
• Vs Core i7-3770
• Vs Core i5-8265U
• Vs Core i5-8250U
• Vs Core i7-8550U
• Vs FX-8350 Eight-Core
• Vs Core i3-9100TE
• Vs Core i5-6500
• Vs Pentium Gold 7505
• Vs Core i5-7400
• Vs Core i7-2600
• Vs Core i5-4590
• Vs Core i3-1005G1
• Vs Core i5-6400
• Vs Core i5-9300HF
• Vs Ryzen 5 3550U
• Vs Core i3-10325
• Vs Core i3-10305
• Vs Core i3-10305T
• Vs Core i3-10105T
• Vs Core i3-10105
• Vs Core i3-10105F
• Vs Core i5-1130G7
• Vs Core i3-1110G4
• Vs Core i3-1115GRE
• Vs Core i3-1115G4E
• Vs Core i3-1120G4
• Vs Core i3-1125G4
• Vs Ryzen 5 3500C
• Vs Ryzen 7 3700C
• Vs Ryzen 3 5300U
• Vs Ryzen 3 3350U
• Vs Core i3-10100T
• Vs Core i5-8260U
• Vs Ryzen 5 3350GE
• Vs Ryzen 5 PRO 3350GE
• Vs Xeon E-2234
• Vs Ryzen 5 3400GE
• Vs Core i7-10810U
• Vs Ryzen 5 3580U
• Vs Core i3-10300
• Vs Core i7-10610U
• Vs Core i7-10510Y
• Vs Core i5-10310U
• Vs Core i5-9500TE
• Vs Core i5-10400H
• Vs Core i7-1060NG7
• Vs Core i5-9400T
• Vs Core i7-8557U
• Vs Core i5-1035G7
• Vs Core i5-1035G4
• Vs Core i5-9500T
• Vs Core i5-8257U
• Vs Core i5-8279U
• Vs Core i3-9320
• Vs Core i7-7820EQ
• Vs Core i3-9300
• Vs Core i7-8809G
• Vs Core i7-8705G
• Vs Core i3-9350KF
• Vs Core i5-8600T
• Vs Core i5-9400H
• Vs Core i3-8100B
• Vs Core i7-8709G
• Vs Core i5-8305G
• Vs Core i7-5850EQ
• Vs Core i5-8400T
• Vs Core i5-8500T
• Vs Core i7-8706G
• Vs Core i5-8400H
• Vs Core i5-8259U
• Vs Core i3-8350K
• Vs Ryzen 3 2200G
• Vs Core i3-13300F

Intel Core i5-8400 Processor Comparisons
• Vs Ryzen 5 3400G
• Vs Core i5-9400F
• Vs Core i7-7700K
• Vs Core i7-8750H
• Vs Core i5-9600K
• Vs Core i7-9750H
• Vs Ryzen 5 1600
• Vs Core i5-10400
• Vs Core i5-10400F
• Vs Core i7-10750H
• Vs Core i7-8700
• Vs Ryzen 5 2600
• Vs Ryzen 5 PRO 2600
• Vs Core i7-8700K
• Vs Ryzen 5 2600X
• Vs Ryzen 5 4600H
• Vs Core i7-10700
• Vs Ryzen 7 2700X
• Vs Ryzen 5 3600
• Vs Ryzen 5 3600X
• Vs Core i7-6700K
• Vs Core i7-1065G7
• Vs Ryzen 5 2400G
• Vs Core i7-4790K
• Vs Core i7-6700
• Vs Ryzen 5 3500U
• Vs Core i7-4790
• Vs Core i7-4770
• Vs Core i7-7700HQ
• Vs Core i5-10210U
• Vs Core i7-6700HQ
• Vs Core i7-3770
• Vs Core i5-8250U
• Vs FX-8350 Eight-Core
• Vs Core i5-6500
• Vs Core i5-9300H
• Vs Core i7-1165G7
• Vs Core i7-10510U
• Vs Core i7-2600
• Vs Ryzen 7 4700U
• Vs Core i5-4590
• Vs Ryzen 5 3500X
• Vs Core i7-8550U
• Vs Core i7-9700K
• Vs Ryzen 5 4500U
• Vs Ryzen 3 3100
• Vs Core i5-1035G1
• Vs Core i5-4570
• Vs Core i5-4460
• Vs Core i5-10300H
• Vs Core i7-7700
• Vs Core i7-10875H
• Vs Core i5-1135G7
• Vs Core i5-8265U
• Vs Core i3-10100
• Vs Ryzen 3 3200G
• Vs Core i5-8300H
• Vs Ryzen 7 2700
• Vs Core i5-7400
• Vs Core i7-9700
• Vs Core i5-10600K
• Vs Core i7-4770K
• Vs Ryzen 7 1700
• Vs Core i3-9100F
• Vs Core i7-10700F
• Vs Core i5-9400
• Vs Core i7-8565U
• Vs Core i7-3770K
• Vs Ryzen 5 3550H
• Vs Ryzen 3 3300X
• Vs Core i5-1145G7
• Vs Ryzen 3 4300GE
• Vs Core i7-1160G7
• Vs Athlon Gold PRO 3150G
• Vs Core i3-10320
• Vs Core i7-9700E
• Vs Core i3-10100F
• Vs Ryzen 5 3350G
• Vs Ryzen 5 3450U
• Vs Ryzen 3 PRO 4200GE
• Vs Core i5-10200H
• Vs Core i3-1115G4
• Vs Core i3-10300T
• Vs Athlon Gold PRO 3150GE
• Vs Core i5-10500
• Vs Core i7-10700T
• Vs Core i5-9300HF
• Vs Ryzen 5 3550U
• Vs Core i5-10600T
• Vs Core i3-10325
• Vs Core i3-10305
• Vs Core i3-10305T
• Vs Core i3-10105T
• Vs Core i3-10105
• Vs Core i3-10105F
• Vs Core i5-1145GRE
• Vs Core i5-1145G7E
• Vs Core i5-1140G7
• Vs Core i5-1130G7
• Vs Core i7-1185GRE
• Vs Core i7-1185G7E
• Vs Core i7-11375H
• Vs Core i7-1185G7
• Vs Core i7-11370H
• Vs Core i7-1180G7
• Vs Core i3-1120G4
• Vs Core i3-1125G4
• Vs Ryzen 7 3700C
• Vs Ryzen 3 5400U
• Vs Ryzen 3 5300U
• Vs Ryzen 3 4300G
• Vs Ryzen 3 PRO 4350GE
• Vs Ryzen 3 PRO 4350G
• Vs Core i3-10100T
• Vs Core i5-8260U
• Vs Ryzen 5 PRO 4500U
• Vs Core i5-10500T
• Vs Ryzen 3 PRO 4450U
• Vs Core i5-10400T
• Vs Ryzen 5 3350GE
• Vs Core i3-11100B
• Vs Core i7-1068NG7
• Vs Ryzen 5 PRO 3350GE
• Vs Ryzen 5 PRO 3350G
• Vs Xeon E-2234
• Vs Ryzen 5 3400GE
• Vs Core i7-10810U
• Vs Ryzen 5 3580U
• Vs Core i3-10300
• Vs Core i5-1038NG7
• Vs Core i5-9500TE
• Vs Core i5-10400H
• Vs Core i5-9600T
• Vs Core i7-8569U
• Vs Core i7-10710U
• Vs Core i7-9850HL
• Vs Core i5-1035G7
• Vs Core i5-1035G4
• Vs Core i5-9500T
• Vs Core i7-8809G
• Vs Core i5-8500
• Vs Core i5-9500F
• Vs Core i5-9500
• Vs Core i5-8600T
• Vs Core i5-9400H
• Vs Core i7-8559U
• Vs Core i5-8500B
• Vs Core i5-8600
• Vs Core i7-8850H
• Vs Core i5-8400H
• Vs Core i5-8259U
• Vs Core i5-8600K
• Vs Ryzen 5 2500X
• Vs Core i5-4690K
• Vs Ryzen 3 PRO 5350GE
• Vs Core i5-7500
• Vs Core i3-8100
• Vs Core i5-6600K
• Vs Ryzen 5 4500
• Vs Ryzen 5 5600GE
• Vs Ryzen 3 5300GE
• Vs Ryzen 3 PRO 4355G