Intel Core i5 8400 vs AMD Ryzen 7 3800X

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We compared two desktop CPUs: Intel Core i5 8400 with 6 cores 2.8GHz and AMD Ryzen 7 3800X with 8 cores 3.9GHz . 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

Integrated graphics card

Lower TDP (65W vs 105W)

AMD Ryzen 7 3800X 's Advantages

Released 1 years and 9 months late

Higher specification of memory (DDR4-3200 vs DDR4-2666)

Larger memory bandwidth (47.68GB/s vs 41.6GB/s)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (3.9GHz vs 2.8GHz)

Larger L3 cache size (32MB vs 9MB)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i5 8400

1038

AMD Ryzen 7 3800X +29%

1341

Cinebench R23 Multi Core

Intel Core i5 8400

5893

AMD Ryzen 7 3800X +135%

13863

Geekbench 6 Single Core

Intel Core i5 8400

1298

AMD Ryzen 7 3800X +34%

1743

Geekbench 6 Multi Core

Intel Core i5 8400

4677

AMD Ryzen 7 3800X +84%

8625

Geekbench 5 Single Core

Intel Core i5 8400

1032

AMD Ryzen 7 3800X +29%

1333

Geekbench 5 Multi Core

Intel Core i5 8400

4611

AMD Ryzen 7 3800X +105%

9479

Passmark CPU Single Core

Intel Core i5 8400

2387

AMD Ryzen 7 3800X +12%

2695

Passmark CPU Multi Core

Intel Core i5 8400

9214

AMD Ryzen 7 3800X +154%

23418

Intel Core i5 8400

VS

AMD Ryzen 7 3800X

General Parameters

Oct 2017

Release Date

Jul 2019

Intel

Manufacturer

Amd

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Zen 2

i5-8400

Processor Number

-

LGA-1151

Socket

AM4

UHD Graphics 630

Integrated Graphics

No

Package

-

Transistor Count

3.8 billions

14 nm

Manufacturing Process

7 nm

LGA-1151

Socket

AM4

65 W

Power Consumption

105 W

100 °C

Peak Operating Temperature

95°C

CPU Performance

6

Performance Cores

8

6

Performance Core Threads

16

2.8 GHz

Performance Core Base Frequency

3.9 GHz

4 GHz

Performance Core Turbo Frequency

4.5 GHz

6

Total Core Count

8

6

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

28x

Multiplier

39x

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

512 K per core

9 MB shared

L3 Cache

32 MB shared

No

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2666

Memory Types

DDR4-3200

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

41.6 GB/s

Max Memory Bandwidth

47.68 GB/s

No

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

-

350 MHz

GPU Base Frequency

-

1050 MHz

GPU Max Dynamic Frequency

-

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

AMD Ryzen 7 3800X

3.0

PCIe Version

4.0

16

PCIe Lanes

16

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

-

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