Intel Core i5 14600K vs Intel Core i5 6400

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We compared two desktop CPUs: Intel Core i5 14600K with 14 cores 3.5GHz and Intel Core i5 6400 with 4 cores 2.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i5 14600K 's Advantages

Released 8 years and 1 months late

Higher specification of memory (DDR5-5600 vs DDR4-2133)

Larger memory bandwidth (89.6GB/s vs 34.1GB/s)

Newer PCIe version (5.0 vs 3.0)

Higher base frequency (3.5GHz vs 2.7GHz)

Larger L3 cache size (24MB vs 6MB)

More modern manufacturing process (10nm vs 14nm)

Intel Core i5 6400 's Advantages

Lower TDP (65W vs 125W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i5 14600K +130%

2072

Intel Core i5 6400

898

Cinebench R23 Multi Core

Intel Core i5 14600K +646%

23983

Intel Core i5 6400

3214

Geekbench 6 Single Core

Intel Core i5 14600K +142%

2772

Intel Core i5 6400

1143

Geekbench 6 Multi Core

Intel Core i5 14600K +419%

17217

Intel Core i5 6400

3312

Blender

Intel Core i5 14600K +812%

374

Intel Core i5 6400

41

Geekbench 5 Single Core

Intel Core i5 14600K +159%

2217

Intel Core i5 6400

853

Geekbench 5 Multi Core

Intel Core i5 14600K +581%

19125

Intel Core i5 6400

2805

Passmark CPU Single Core

Intel Core i5 14600K +119%

4299

Intel Core i5 6400

1961

Passmark CPU Multi Core

Intel Core i5 14600K +666%

39465

Intel Core i5 6400

5151

Intel Core i5 14600K

VS

Intel Core i5 6400

General Parameters

Oct 2023

Release Date

Sep 2015

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Raptor Lake Refresh

Core Architecture

Skylake

i5-14600K

Processor Number

i5-6400

LGA-1700

Socket

LGA-1151

UHD Graphics 770

Integrated Graphics

HD Graphics 530

Core i5 (Raptor Lake Refresh)

Generation

-

Package

10 nm

Manufacturing Process

14 nm

LGA-1700

Socket

LGA-1151

125 W

Power Consumption

65 W

181 W

Max Turbo Power Consumption

-

100°C

Peak Operating Temperature

-

Intel

Foundry

-

257 mm²

Die Size

-

FC-LGA16A

Package

-

CPU Performance

6

Performance Cores

4

12

Performance Core Threads

4

3.5 GHz

Performance Core Base Frequency

2.7 GHz

5.3 GHz

Performance Core Turbo Frequency

3.3 GHz

8

Efficiency Cores

-

8

Efficiency Core Threads

-

2.6 GHz

Efficiency Core Base Frequency

-

4 GHz

Efficiency Core Turbo Frequency

-

14

Total Core Count

4

20

Total Thread Count

4

100 MHz

Bus Frequency

100 MHz

35x

Multiplier

27x

80 K per core

L1 Cache

64 K per core

2 MB per core

L2 Cache

256 K per core

24 MB shared

L3 Cache

6 MB shared

Yes

Unlocked Multiplier

No

1

SMP

-

Memory Parameters

DDR5-5600, DDR4-3200

Memory Types

DDR4-2133, DDR3L-1600

192 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

34.1 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

300 MHz

GPU Base Frequency

-

1550 MHz

GPU Max Dynamic Frequency

950 MHz

256

Shader Units

-

16

Texture Units

-

8

Raster Operation Units

-

32

Execution Units

-

15 W

Power Consumption

-

0.78 TFLOPS

Graphics Performance

-

Miscellaneous

Intel Core i5 14600K

Official Website

Intel Core i5 6400

5.0

PCIe Version

3.0

20

PCIe Lanes

16

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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