Intel Core i5 8400 vs Intel Core i5 6600

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We compared two desktop CPUs: Intel Core i5 8400 with 6 cores 2.8GHz and Intel Core i5 6600 with 4 cores 3.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i5 8400 's Advantages

Released 2 years and 1 months late

Higher specification of memory (DDR4-2666 vs DDR4-2133)

Larger memory bandwidth (41.6GB/s vs 34.1GB/s)

Larger L3 cache size (9MB vs 6MB)

Intel Core i5 6600 's Advantages

Higher base frequency (3.3GHz vs 2.8GHz)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i5 8400

1038

Intel Core i5 6600

1042

Cinebench R23 Multi Core

Intel Core i5 8400 +54%

5893

Intel Core i5 6600

3810

Geekbench 6 Single Core

Intel Core i5 8400 +6%

1298

Intel Core i5 6600

1215

Geekbench 6 Multi Core

Intel Core i5 8400 +53%

4677

Intel Core i5 6600

3041

Blender

Intel Core i5 8400 +92%

81

Intel Core i5 6600

42

Geekbench 5 Single Core

Intel Core i5 8400 +8%

1032

Intel Core i5 6600

953

Geekbench 5 Multi Core

Intel Core i5 8400 +38%

4611

Intel Core i5 6600

3325

Passmark CPU Single Core

Intel Core i5 8400 +6%

2387

Intel Core i5 6600

2246

Passmark CPU Multi Core

Intel Core i5 8400 +53%

9214

Intel Core i5 6600

5989

Intel Core i5 8400

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Intel Core i5 6600

General Parameters

Oct 2017

Release Date

Sep 2015

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Skylake

i5-8400

Processor Number

i5-6600

LGA-1151

Socket

LGA-1151

UHD Graphics 630

Integrated Graphics

HD Graphics 530

Package

-

Transistor Count

1.75 billions

14 nm

Manufacturing Process

14 nm

LGA-1151

Socket

LGA-1151

65 W

Power Consumption

65 W

100 °C

Peak Operating Temperature

-

CPU Performance

6

Performance Cores

4

6

Performance Core Threads

4

2.8 GHz

Performance Core Base Frequency

3.3 GHz

4 GHz

Performance Core Turbo Frequency

3.9 GHz

6

Total Core Count

4

6

Total Thread Count

4

100 MHz

Bus Frequency

100 MHz

28x

Multiplier

33x

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

9 MB shared

L3 Cache

6 MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR4-2666

Memory Types

DDR4-2133, DDR3L-1600

128 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

41.6 GB/s

Max Memory Bandwidth

34.1 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

350 MHz

GPU Base Frequency

-

1050 MHz

GPU Max Dynamic Frequency

1150 MHz

192

Shader Units

-

24

Texture Units

-

3

Raster Operation Units

-

24

Execution Units

-

15 W

Power Consumption

-

4096x2304 - 60 Hz

Max Resolution

-

0.38 TFLOPS

Graphics Performance

-

Miscellaneous

Intel Core i5 8400

Official Website

Intel Core i5 6600

3.0

PCIe Version

3.0

16

PCIe Lanes

16

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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