I5 8400 vs i5 8600k: Intel Core i5-8400 vs i5-8600K

Intel Core i5+8400 vs Intel Core i5-8600K: What is the difference?

53points

Intel Core i5+8400

55points

Intel Core i5-8600K

Comparison winner

vs

63 facts in comparison

Intel Core i5+8400

Intel Core i5-8600K

Why is Intel Core i5+8400 better than Intel Core i5-8600K?

  • 30W lower TDP?
    65Wvs95W
  • Uses multithreading?

Why is Intel Core i5-8600K better than Intel Core i5+8400?

  • 28.57% faster CPU speed?
    6 x 3.6GHzvs6 x 2.8GHz
  • 0.3GHz higher turbo clock speed?
    4.3GHzvs4GHz
  • 10% higher PassMark result?
    12854vs11685
  • 11.45% higher PassMark result (single)?
    2530vs2270
  • Supports ECC memory?
  • 100MHz faster GPU turbo speed?
    1150MHzvs1050MHz
  • 8 higher clock multiplier?
    36vs28

Which are the most popular comparisons?

Intel Core i5+8400

vs

Intel Core i3-9100F

Intel Core i5-8600K

vs

AMD Ryzen 7 5800X

Intel Core i5+8400

vs

Intel Core i7-3770

Intel Core i5-8600K

vs

Intel Core i5-9600K

Intel Core i5+8400

vs

AMD Ryzen 5 5600X

Intel Core i5-8600K

vs

AMD Ryzen 5 5600X

Intel Core i5+8400

vs

Intel Core i7-4790K

Intel Core i5-8600K

vs

Intel Core i7-9700K

Intel Core i5+8400

vs

AMD Ryzen 5 3600

Intel Core i5-8600K

vs

AMD Ryzen 5 2600X

Intel Core i5+8400

vs

Intel Core i3-10100

Intel Core i5-8600K

vs

Intel Core i7-7700K

Intel Core i5+8400

vs

AMD Ryzen 5 5600G

Intel Core i5-8600K

vs

Intel Core i7-8700K

Intel Core i5+8400

vs

Intel Core i3-8100

Intel Core i5-8600K

vs

Intel Core i5-8600

Intel Core i5+8400

vs

Intel Core i7-6700

Intel Core i5-8600K

vs

AMD Ryzen 5 5600G

Intel Core i5+8400

vs

AMD Ryzen 5 2600

Intel Core i5-8600K

vs

Intel Core i5-9400F

Price comparison

User reviews

Overall Rating

Intel Core i5+8400

2 User reviews

Intel Core i5+8400

10. 0/10

2 User reviews

Intel Core i5-8600K

0 User reviews

Intel Core i5-8600K

0.0/10

0 User reviews

Features

Value for money

10.0/10

2 votes

No reviews yet

 

Gaming

10.0/10

2 votes

No reviews yet

 

Performance

10.0/10

2 votes

No reviews yet

 

Reliability

10.0/10

2 votes

No reviews yet

 

Energy efficiency

10.0/10

2 votes

No reviews yet

 

Performance

CPU speed

6 x 2.8GHz

6 x 3.6GHz

The CPU speed indicates how many processing cycles per second can be executed by a CPU, considering all of its cores (processing units). It is calculated by adding the clock rates of each core or, in the case of multi-core processors employing different microarchitectures, of each group of cores.

CPU threads

More threads result in faster performance and better multitasking.

turbo clock speed

4.3GHz

When the CPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.

Has an unlocked multiplier

✖Intel Core i5+8400

✖Intel Core i5-8600K

Some processors come with an unlocked multiplier which makes them easy to overclock, allowing you to gain increased performance in games and other apps.

L2 cache

A larger L2 cache results in faster CPU and system-wide performance.

L3 cache

A larger L3 cache results in faster CPU and system-wide performance.

L1 cache

A larger L1 cache results in faster CPU and system-wide performance.

L2 core

0.25MB/core

0.25MB/core

More data can be stored in the L2 cache for access by each core of the CPU.

L3 core

1. 5MB/core

1.5MB/core

More data can be stored in the L3 cache for access by each core of the CPU.

Benchmarks

PassMark result

This benchmark measures the performance of the CPU using multiple threads.

PassMark result (single)

This benchmark measures the performance of the CPU using a single thread.

Geekbench 5 result (multi)

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

Geekbench 5 is a cross-platform benchmark that measures a processor’s multi-core performance. (Source: Primate Labs, 2022)

Cinebench R20 (multi) result

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

Cinebench R20 is a benchmark tool that measures a CPU’s multi-core performance by rendering a 3D scene.

Cinebench R20 (single) result

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

Cinebench R20 is a benchmark tool that measures a CPU’s single-core performance by rendering a 3D scene.

Geekbench 5 result (single)

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

Geekbench 5 is a cross-platform benchmark that measures a processor’s single-core performance. (Source: Primate Labs, 2022)

Blender (bmw27) result

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

The Blender (bmw27) benchmark measures the performance of a processor by rendering a 3D scene. More powerful processors can render the scene in less time.

Blender (classroom) result

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

The Blender (classroom) benchmark measures the performance of a processor by rendering a 3D scene. More powerful processors can render the scene in less time.

performance per watt

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

This means the CPU is more efficient, giving a greater amount of performance for each watt of power used.

Integrated graphics

GPU clock speed

350MHz

350MHz

The graphics processing unit (GPU) has a higher clock speed.

GPU turbo

1050MHz

1150MHz

When the GPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.

GPU execution units

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

A graphics processing unit (GPU) with a greater number of execution units can deliver better graphics.

supported displays

Using multiple displays you can create a larger workspace, making it easier to work across multiple apps.

DirectX version

DirectX is used in games, with newer versions supporting better graphics.

OpenGL version

OpenGL is used in games, with newer versions supporting better graphics.

OpenCL version

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

Some apps use OpenCL to apply the power of the graphics processing unit (GPU) for non-graphical computing. Newer versions introduce more functionality and better performance.

texture mapping units (TMUs)

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

TMUs take textures and map them to the geometry of a 3D scene. More TMUs will typically mean that texture information is processed faster.

render output units (ROPs)

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

The ROPs are responsible for some of the final steps of the rendering process, writing the final pixel data to memory and carrying out other tasks such as anti-aliasing to improve the look of graphics.

Memory

RAM speed

2666MHz

2666MHz

It can support faster memory, which will give quicker system performance.

maximum memory bandwidth

41. 6GB/s

42.7GB/s

This is the maximum rate that data can be read from or stored into memory.

DDR memory version

DDR (Double Data Rate) memory is the most common type of RAM. Newer versions of DDR memory support higher maximum speeds and are more energy-efficient.

memory channels

More memory channels increases the speed of data transfer between the memory and the CPU.

maximum memory amount

The maximum amount of memory (RAM) supported.

bus transfer rate

The bus is responsible for transferring data between different components of a computer or device.

Supports ECC memory

✖Intel Core i5+8400

✔Intel Core i5-8600K

Error-correcting code memory can detect and correct data corruption. It is used when is it essential to avoid corruption, such as scientific computing or when running a server.

eMMC version

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

A higher version of eMMC allows faster memory interfaces, having a positive effect on the performance of a device. For example, when transferring files from your computer to the internal storage over USB.

bus speed

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

The bus is responsible for transferring data between different components of a computer or device.

Features

uses multithreading

✔Intel Core i5+8400

✖Intel Core i5-8600K

Multithreading technology (such as Intel’s Hyperthreading or AMD’s Simultaneous Multithreading) provides increased performance by splitting each of the processor’s physical cores into virtual cores, also known as threads. This way, each core can run two instruction streams at once.

Has AES

✔Intel Core i5+8400

✔Intel Core i5-8600K

AES is used to speed up encryption and decryption.

Has AVX

✔Intel Core i5+8400

✔Intel Core i5-8600K

AVX is used to help speed up calculations in multimedia, scientific and financial apps, as well as improving Linux RAID software performance.

SSE version

SSE is used to speed up multimedia tasks such as editing an image or adjusting audio volume. Each new version contains new instructions and improvements.

Has F16C

✔Intel Core i5+8400

✔Intel Core i5-8600K

F16C is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.

bits executed at a time

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

NEON provides acceleration for media processing, such as listening to MP3s.

Has MMX

✔Intel Core i5+8400

✔Intel Core i5-8600K

MMX is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.

Has TrustZone

✖Intel Core i5+8400

✖Intel Core i5-8600K

A technology integrated into the processor to secure the device for use with features such as mobile payments and streaming video using digital rights management (DRM).

front-end width

Unknown. Help us by suggesting a value. (Intel Core i5+8400)

Unknown. Help us by suggesting a value. (Intel Core i5-8600K)

The CPU can decode more instructions per clock (IPC), meaning that the CPU performs better

Price comparison

Which are the best CPUs?

Intel Core i5 8600K vs i5 8400: performance comparison

VS

Intel Core i5 8600K

Intel Core i5 8400

We compared two 6-core desktop CPUs: the 3. 6 GHz Intel Core i5 8600K against the 2.8 GHz i5 8400. On this page, you’ll find out which processor has better performance in benchmarks, games and other useful information.

  1. Review
  2. Differences
  3. Performance
  4. Specs
  5. Comments

Review

General overview and comparison of the processors

Single-Core Performance

Performance in single-threaded apps and benchmarks

Core i5 8600K

55

Core i5 8400

47

Performance

Measure performance when all cores are involved

Core i5 8600K

27

Core i5 8400

23

Power Efficiency

The efficiency score of electricity consumption

Core i5 8600K

41

Core i5 8400

44

NanoReview Final Score

Generic CPU rating

Core i5 8600K

42

Core i5 8400

37

Key Differences

What are the key differences between 8400 and 8600K

Advantages of Intel Core i5 8600K

  • Unlocked multiplier
  • 7% higher Turbo Boost frequency (4. 3 GHz vs 4 GHz)
  • 13% faster in a single-core Geekbench v5 test — 1170 vs 1034 points

Advantages of Intel Core i5 8400

  • Consumes up to 32% less energy than the Core i5 8600K – 65 vs 95 Watt

Benchmarks

Comparing the performance of CPUs in benchmarks

Cinebench R23 (Single-Core)

Core i5 8600K
+21%

1238

Core i5 8400

1020

Cinebench R23 (Multi-Core)

Core i5 8600K
+16%

6769

Core i5 8400

5811

Passmark CPU (Single-Core)

Core i5 8600K
+9%

2590

Core i5 8400

2379

Passmark CPU (Multi-Core)

Core i5 8600K
+10%

10165

Core i5 8400

9228

Geekbench 5 (Single-Core)

Core i5 8600K
+13%

1160

Core i5 8400

1026

Geekbench 5 (Multi-Core)

Core i5 8600K
+17%

5374

Core i5 8400

4607

▶️ Submit your Cinebench R23 result

By purchasing through links on this site, we may receive a commission from Amazon. This does not affect our assessment methodology.

Specifications

Full technical specification of Intel Core i5 8600K and i5 8400

General

Vendor Intel Intel
Released October 5, 2017 October 5, 2017
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Coffee Lake Coffee Lake
Model number i5-8600K i5-8400
Socket LGA-1151 LGA-1151
Integrated GPU UHD Graphics 630 UHD Graphics 630

Performance

Cores 6 6
Threads 6 6
Base Frequency 3. 6 GHz 2.8 GHz
Turbo Boost Frequency 4.3 GHz 4 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 36x 28x
Bus Bandwidth 8 GT/s 8 GT/s
L1 Cache 64K (per core) 64K (per core)
L2 Cache 256K (per core) 256K (per core)
L3 Cache 9MB (shared) 9MB (shared)
Unlocked Multiplier Yes No
Fabrication process 14 nm 14 nm
TDP 95 W 65 W
Max. temperature 100°C 100°C
Integrated Graphics Intel UHD Graphics 630 Intel UHD Graphics 630
GPU Base Clock 350 MHz 350 MHz
GPU Boost Clock 1150 MHz 1050 MHz
Shading Units 192 192
TMUs 24 24
ROPs 3 3
Execution Units 24 24
TGP 15 W 15 W
Max. Resolution 4096×2304 — 60 Hz 4096×2304 — 60 Hz

iGPU FLOPS

Core i5 8600K

0.38 TFLOPS

Core i5 8400

0.38 TFLOPS

Memory support

Memory types DDR4-2666 DDR4-2666
Memory Size 128 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth 41.6 GB/s 41.6 GB/s
ECC Support No No
Official site Intel Core i5 8600K official page Intel Core i5 8400 official page
PCI Express Version 3.0 3.0
PCI Express Lanes 16 16
Extended instructions SSE4. 1, SSE4.2, AVX-2 SSE4.1, SSE4.2, AVX-2

Cast your vote

Choose between two processors

Core i5 8600K

9 (50%)

Core i5 8400

9 (50%)

Total votes: 18

Сompetitors

1.
Intel Core i5 8600K and Intel Core i5 12600K

2.
Intel Core i5 8400 and Intel Core i5 12600K

3.
Intel Core i5 8400 and Intel Core i5 12400

4.
Intel Core i5 8400 and Intel Core i5 12400F

So which CPU will you choose: Intel Core i5 8400 or i5 8600K?

Name

Message

Promotion

Intel Core i5+8400 vs Intel Core i5-8600K: What is the difference?

Smartphone-graphic wire headphones

53 BALLLA

Intel Core i5+8400

55 Ballla

Intel Core i5-8600k

Winter i5-8600K

Why is Intel Core i5+8400 better than Intel Core i5-8600K?

  • 30W below TDP?
    65W vs 95W
  • Multithreaded?

Why is Intel Core i5-8600K better than Intel Core i5+8400?

  • 28. 57% higher CPU speed?
    6 x 3.6GHz vs 6 x 2.8GHz
  • 0.3GHz higher turbo clock speed?
    4.3GHz vs 4GHz
  • 10% higher PassMark score?
    12854 vs 11685
  • 11.45% higher PassMark score (single)?
    2530 vs 2270
  • Supports memory debug code?
  • 100MHz faster GPU turbo speed?
    1150MHz vs 1050MHz
  • 8 higher hour multiplier?
    36 vs 28

Which comparisons are the most popular? AMD Ryzen 7 5800X

Intel Core i5+8400

VS

Intel Core i7-3770

Intel Core i5-8600k

VS

Intel Core i5-9600k

Intel Core I5+8400

VS 9000 AMD AMD AMD AMD

Intel Core i5-8600k

VS

AMD Ryzen 5 5600x

Intel Core i5+8400

VS

Intel Core i7-4790k

Intel Core I5-8600K

VS 9000 VS 9000 VS 9000 VS 9000 VS 9000 VS 9000 VS 9000 VS

Intel Core i5+8400

VS

AMD Ryzen 5 3600

Intel Core i5-8600k

VS

AMD Ryzen 5 2600x

Intel Core i5+8400

VS

Intel Core I3-10100

Intel Core

INTER

VS

Intel Core i7-7700k

Intel Core i5+8400

VS

AMD Ryzen 5 5600g

Intel Core i5-8600k

VS

Intel Core

vs

Intel Core i3-8100

Intel Core i5-8600k

VS

Intel Core i5-8600

Intel Core i5+8400

VS

Intel Core i7-6700

Intel Core I5 ​​-000

Intel Core INTEL Core 2

AMD RYZEN 5 5600G

Intel Core i5+8400

VS

AMD Ryzen 5 2600

Intel Core i5-8600K

VS

Intel

22222222222222222 rating

Intel Core i5+8400

2 reviews of users

Intel Core i5+8400

10. 0 /10

2 reviews of users

Intel Core i5-8600k

0 Reviews of users

Intel Core I5 ​​-8600K

0.0 /10

0 reviews of users

Functions

Price and quality ratio

10.0 /10

2 VOTES

reviews yet not

Games

10.0 /10

2 Votes

reviews yet there is no

performance

10.0219 /10

2 Votes

reviews yet there are no

9000

18

19 /10

2 votes

No reviews yet

Energy Efficiency

10.0 /10

2 votes

No reviews yet 9 No reviews yet

0002

Performance

CPU speed

6 x 2.8GHz

6 x 3.6GHz

CPU speed indicates how many processing cycles per second the processor can perform, considering all its cores (processors). It is calculated by adding the clock speeds of each core or, in the case of multi-core processors, each group of cores.

processor thread

More threads result in better performance and better multitasking.

turbo clock speed

4.3GHz

When the processor is running below its limits, it can jump to a higher clock speed to increase performance.

Unlocked

✖Intel Core i5+8400

✖Intel Core i5-8600K

Some processors come with an unlocked multiplier and can be easily overclocked for better performance in games and other applications.

L2 Cache

More L2 scratchpad memory results in faster results in CPU and system performance tuning.

L3 cache

More L3 scratchpad memory results in faster results in CPU and system performance tuning.

L1 cache

More L1 cache results in faster results in CPU and system performance tuning.

L2 core

0.25MB/core

0.25MB/core

More data can be stored in L2 scratchpad for access by each processor core.

L3 core

1.5MB/core

1.5MB/core

More data can be stored in L3 scratchpad for access by each processor core.

Geotagging

PassMark result

This benchmark measures CPU performance using multithreading.

PassMark result (single)

This test measures processor performance using a thread of execution.

Geekbench 5 result (multi-core)

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

Geekbench 5 is a cross-platform benchmark that measures multi-core processor performance. (Source: Primate Labs, 2022)

Cinebench R20 result (multi-core)

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

Cinebench R20 is a benchmark that measures the performance of a multi-core processor by rendering a 3D scene.

Cinebench R20 result (single core)

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

Cinebench R20 is a test to evaluate the performance of a single core processor when rendering a 3D scene.

Geekbench 5 result (single core)

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

Geekbench 5 is a cross-platform benchmark that measures the single-core performance of a processor. (Source: Primate Labs, 2022)

Blender test result (bmw27)

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

The Blender benchmark (bmw27) measures CPU performance by rendering a 3D scene. More powerful processors can render a scene in a shorter time.

Blender (classroom) result

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

The Blender (classroom) test measures CPU performance by rendering a 3D scene. More powerful processors can render a scene in a shorter time.

performance per watt

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

This means that the processor is more efficient, giving more performance per watt of power used.

Integrated graphics

GPU clock speed

350MHz

350MHz

The graphics processing unit (GPU) has a higher clock speed.

turbo GPU

1050MHz

1150MHz

When the GPU is running below its limits, it can jump to a higher clock speed to increase performance.

GPU actuators

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

A graphics processing unit (GPU) with more execution units can provide better graphics.

monitor support

By using multiple displays, you can increase your workspace, making it easier to work across multiple applications.

version of DirectX

DirectX is used in games with a new version that supports better graphics.

OpenGL version

The newer version of OpenGL, the better graphics quality in games.

OpenCL version

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

Some applications use OpenCL to use the power of the graphics processing unit (GPU) for non-graphical computing. Newer versions are more functional and better quality.

textured units (TMUs)

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

TMUs take texture units and map them to the geometric layout of the 3D scene. More TMUs generally means texture information is processed faster.

imaging units ROPs

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

ROPs are responsible for some of the final steps of the rendering process, such as writing the final pixel data to memory and for performing other tasks such as anti-aliasing to improve the appearance of graphics.

Memory

RAM speed

2666MHz

2666MHz

Can support faster memory which speeds up system performance.

maximum memory bandwidth

41.6GB/s

42.7GB/s

This is the maximum rate at which data can be read from or stored in memory.

DDR memory version

DDR (Double Data Rate Synchronous Dynamic Random Access Memory) is the most common type of main memory. New versions of DDR memory support higher maximum speeds and are more energy efficient.

memory channels

More memory channels increase the speed of data transfer between memory and processor.

maximum memory

Maximum memory (RAM).

bus baud rate

The bus is responsible for transferring data between various components of a computer or device.

Supports memory troubleshooting code

✖Intel Core i5+8400

✔Intel Core i5-8600K

Memory troubleshooting code can detect and repair data corruption. It is used when necessary to avoid distortion, such as in scientific computing or when starting a server.

eMMC version

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

The newer version of eMMC — built-in flash memory card — speeds up the memory interface, has a positive effect on device performance, for example, when transferring files from a computer to internal memory via USB.

bus frequency

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

The bus is responsible for transferring data between various components of a computer or device

, Intel’s Hyperthreading or AMD’s Simultaneous Multithreading) delivers faster performance by dividing each physical processor core into logical cores, also known as threads.

Thus, each core can run two instruction streams at the same time.

Has AES

✔Intel Core i5+8400

✔Intel Core i5-8600K

AES is used to speed up encryption and decryption.

Has AVX

✔Intel Core i5+8400

✔Intel Core i5-8600K

AVX is used to help speed up calculations in multimedia, scientific and financial applications, and to improve the performance of the Linux RAID program.

version of SSE

SSE is used to speed up multimedia tasks such as editing images or adjusting audio volume. Each new version contains new instructions and improvements.

Has F16C

✔Intel Core i5+8400

✔Intel Core i5-8600K

F16C is used to speed up tasks such as adjusting image contrast or adjusting volume.

bits transmitted at the same time

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

NEON provides faster media processing such as MP3 listening.

Has MMX

✔Intel Core i5+8400

✔Intel Core i5-8600K

MMX is used to speed up tasks such as adjusting image contrast or adjusting volume.

Has TrustZone

✖Intel Core i5+8400

✖Intel Core i5-8600K

Technology is integrated into the processor to ensure device security when using features such as mobile payments and streaming video using Digital Rights Management (DRM) technology .

interface width

Unknown. Help us offer a price. (Intel Core i5+8400)

Unknown. Help us offer a price. (Intel Core i5-8600K)

The processor can decode more instructions per clock (IPC), which means the processor performs better

Price comparison

Which CPUs are better?

This page is currently only available in English.

Intel Core i5 8600K vs i5 8400: 9 performance comparison0001

VS

Intel Core i5 8600K

Intel Core i5 8400

Which is better: Intel Core i5 8600K at 3.6 GHz (with Turbo Boost up to 4.3) or i5 8400 at 2.8 GHz (with Turbo Boost up to 4.0)? To find out, read our comparative testing of these 6-core desktop processors in popular benchmarks, games and heavy applications.

  1. Overview
  2. Differences
  3. Performance
  4. Features
  5. Comments

Overview

Overview and comparison of the main metrics from NanoReview

Single -flow performance

Rating in tests using one kernel

Core i5 8600k

55

Core i5 8400

47

Multi -flow performance

Tests in benchmarks where all nucleus

Core2 Core 86002 are involved 27

Core i5 8400

23

Energy efficiency

Effect Energy Effect CHIP

Core I5 ​​8600K

41

Core i5 8400

44

Rating NanoreView

9000 8 000 Core

37

Key differences

What are the main differences between 8400 and 8600K

Reasons to choose Intel Core i5 8600K

  • Unlocked multiplier
  • 7% faster Turbo Boost frequency (4. 3 GHz vs 4 GHz)
  • 13% faster Geekbench v5 single core — 1170 and 1034 points

Reasons to choose Intel Core i5 8400

  • 32% lower than Core i5 8600K peak power consumption — 65 vs 95 Watts

Benchmark tests

Compare the results of processor tests in benchmarks

Cinebench R23 (single core)

Core i5 8600K
+21%

1238

Core i5 8400

1020

Cinebench R23 (multi-core)

Core i5 8600K
+16%

6769

Core i5 8400

5811

Passmark CPU (single core)

Core i5 8600K
+9%

2590

Core i5 8400

2379

Passmark CPU (multi-core)

Core i5 8600K
+10%

10165

Core i5 8400

9228

Geekbench 5 (single core)

Core i5 8600K
+13%

1160

Core i5 8400

1026

Geekbench 5 (multi-core)

Core i5 8600K
+17%

5374

Core i5 8400

4607

▶️ Add your score to Cinebench R23

Specifications

List of full technical specifications of Intel Core i5 8600K and i5 8400

General information

Manufacturer Intel Intel
Release date October 5, 2017 October 5, 2017
Type Desktop Desktop
Instruction set architecture x86-64 x86-64
Codename Coffee Lake

Coffee Lake
Model number i5-8600K i5-8400
Socket LGA-1151 LGA-1151
Integrated graphics UHD Graphics 630 UHD Graphics 630

Performance

Number of cores 6 6
Number of threads 6 6
Frequency 3. 6 GHz 2.8 GHz
Max. frequency in Turbo Boost 4.3 GHz 4 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 36x 28x
Tire speed 8 GT/s 8 GT/s
Level 1 cache 64KB (per core) 64KB (per core)
Level 2 cache 256KB (per core) 256KB (per core)
Level 3 cache 9MB (shared) 9MB (shared)
Unlocked multiplier Yes No

Power consumption

Process 14 nanometers 14 nanometers
Power consumption (TDP) 95 W 65 W
Critical temperature 100°C 100°C
Integrated graphics Intel UHD Graphics 630 Intel UHD Graphics 630
GPU clock 350 MHz 350 MHz
Boost GPU frequency 1150 MHz 1050 MHz
Shader blocks 192 192
TMUs 24 24
ROPs 3 3
Computer units 24 24
TGP 15W 15W
Max. resolution 4096×2304 — 60Hz 4096×2304 — 60Hz

Igpu Flops

Core i5 8600k

0.38 Teraflops

Core i5 8400

0.38 Teraflops

Support for memory

DDR4-2666 DDR4-2666 Max. size 128 GB 128 GB Number of channels 2 2 Max. bandwidth 41.6 GB/s 41.6 GB/s ECC support No No

Other

Official site Site Intel Core i5 8600K Site Intel Core i5 8400
PCI Express Version 3.0 3.0
Max. PCI Express lanes 16 16
Extended instructions SSE4.1, SSE4.2, AVX-2 SSE4.1, SSE4.2, AVX-2

Poll

What processor do you think is the best?

Core i5 8600K

9 (50%)

Core i5 8400

9 (50%)

Total votes: 18

Competitors

1.