AMD Ryzen 9 3900X vs Intel Core i5 6400

VS

AMD Ryzen 9 3900X

Intel Core i5 6400

We compared two desktop CPUs: AMD Ryzen 9 3900X with 12 cores 3.8GHz 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

AMD Ryzen 9 3900X 's Advantages

Released 3 years and 10 months late

Higher specification of memory (3200 vs 2133)

Larger memory bandwidth (47.68GB/s vs 34.1GB/s)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (3.8GHz vs 2.7GHz)

Larger L3 cache size (64MB vs 6MB)

More modern manufacturing process (7nm vs 14nm)

Intel Core i5 6400 's Advantages

Integrated graphics card

Lower TDP (65W vs 105W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 3900X +45%

1306

Intel Core i5 6400

898

Cinebench R23 Multi Core

AMD Ryzen 9 3900X +474%

18454

Intel Core i5 6400

3214

Geekbench 6 Single Core

AMD Ryzen 9 3900X +61%

1842

Intel Core i5 6400

1143

Geekbench 6 Multi Core

AMD Ryzen 9 3900X +253%

11715

Intel Core i5 6400

3312

Geekbench 5 Single Core

AMD Ryzen 9 3900X +54%

1319

Intel Core i5 6400

853

Geekbench 5 Multi Core

AMD Ryzen 9 3900X +327%

11991

Intel Core i5 6400

2805

Passmark CPU Single Core

AMD Ryzen 9 3900X +36%

2683

Intel Core i5 6400

1961

Passmark CPU Multi Core

AMD Ryzen 9 3900X +531%

32531

Intel Core i5 6400

5151

AMD Ryzen 9 3900X

VS

Intel Core i5 6400

General Parameters

Jul 2019

Release Date

Sep 2015

AMD

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 2

Core Architecture

Skylake

-

Processor Number

i5-6400

AM4

Socket

LGA-1151

N/A

Integrated Graphics

HD Graphics 530

Package

3.8 billions

Transistor Count

-

7 nm

Manufacturing Process

14 nm

105 W

Power Consumption

65 W

95 °C

Peak Operating Temperature

-

CPU Performance

12

Performance Cores

4

24

Performance Core Threads

4

3.8 GHz

Performance Core Base Frequency

2.7 GHz

4.6 GHz

Performance Core Turbo Frequency

3.3 GHz

12

Total Core Count

4

24

Total Thread Count

4

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

27x

64 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

256 K per core

64 MB shared

L3 Cache

6 MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR4-3200

Memory Types

DDR4-2133, DDR3L-1600

128 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

47.68 GB/s

Max Memory Bandwidth

34.1 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Max Dynamic Frequency

950 MHz

Miscellaneous

AMD Ryzen 9 3900X

Official Website

Intel Core i5 6400

4.0

PCIe Version

3.0

16

PCIe Lanes

16

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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