Intel Core i9 9920X vs Intel Core i5 8400

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We compared two desktop CPUs: Intel Core i9 9920X with 12 cores 3.5GHz and Intel Core i5 8400 with 6 cores 2.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 9920X's Advantages

Released 1 years late

Larger memory bandwidth (85GB/s vs 41.6GB/s)

Higher base frequency (3.5GHz vs 2.8GHz)

Larger L3 cache size (19MB vs 9MB)

Intel Core i5 8400's Advantages

Integrated graphics card

Lower TDP (65W vs 165W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 9920X +4%

1067

Intel Core i5 8400

1021

Cinebench R23 Multi Core

Intel Core i9 9920X +154%

14793

Intel Core i5 8400

5804

Geekbench 6 Single Core

Intel Core i9 9920X +7%

1389

Intel Core i5 8400

1298

Geekbench 6 Multi Core

Intel Core i9 9920X

3027

Intel Core i5 8400 +54%

4677

Geekbench 5 Single Core

Intel Core i9 9920X +13%

1171

Intel Core i5 8400

1032

Geekbench 5 Multi Core

Intel Core i9 9920X +170%

12494

Intel Core i5 8400

4611

Passmark CPU Single Core

Intel Core i9 9920X +9%

2608

Intel Core i5 8400

2387

Passmark CPU Multi Core

Intel Core i9 9920X +171%

25060

Intel Core i5 8400

9214

Intel Core i9 9920X

VS

Intel Core i5 8400

General Parameters

Oct 2018

Release Date

Oct 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Coffee Lake

i9-9920X

Processor Number

i5-8400

LGA-2066

Socket

LGA-1151

N/A

Integrated Graphics

UHD Graphics 630

Package

14 nm

Manufacturing Process

14 nm

LGA-2066

Socket

LGA-1151

165 W

Power Consumption

65 W

92 °C

Peak Operating Temperature

100 °C

CPU Performance

12

Performance Cores

6

24

Performance Core Threads

6

3.5 GHz

Performance Core Base Frequency

2.8 GHz

4.4 GHz

Performance Core Turbo Frequency

4 GHz

12

Total Core Count

6

24

Total Thread Count

6

100MHz

Bus Frequency

100MHz

35x

Multiplier

28x

64K per core

L1 Cache

64K per core

1MB per core

L2 Cache

256K per core

19MB shared

L3 Cache

9MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR4-2666

Memory Types

DDR4-2666

128GB

Max Memory Size

128GB

4

Max Memory Channels

2

85 GB/s

Max Memory Bandwidth

41.6 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

True

-

GPU Base Frequency

350 MHz

-

GPU Max Dynamic Frequency

1050 MHz

-

Shader Units

192

-

Texture Units

24

-

Raster Operation Units

3

-

Execution Units

24

-

Power Consumption

15 W

-

Max Resolution

4096x2304 - 60 Hz

-

Graphics Performance

0.38 TFLOPS

Miscellaneous

Intel Core i9 9920X

Official Website

Intel Core i5 8400

3.0

PCIe Version

3.0

44

PCIe Lanes

16

SSE4.1, SSE4.2, AVX-2, AVX-512

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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