AMD Ryzen 7 7800X3D vs Intel Core i5 6400

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We compared two desktop CPUs: AMD Ryzen 7 7800X3D with 8 cores 4.4GHz 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 7 7800X3D 's Advantages

Released 7 years and 4 months late

Higher specification of memory (DDR5-5200 vs DDR4-2133)

Larger memory bandwidth (83.2GB/s vs 34.1GB/s)

Newer PCIe version (5.0 vs 3.0)

Higher base frequency (4.4GHz vs 2.7GHz)

Larger L3 cache size (96MB vs 6MB)

Intel Core i5 6400 's Advantages

Lower TDP (65W vs 120W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 7 7800X3D +102%

1817

Intel Core i5 6400

898

Cinebench R23 Multi Core

AMD Ryzen 7 7800X3D +452%

17762

Intel Core i5 6400

3214

Geekbench 6 Single Core

AMD Ryzen 7 7800X3D +128%

2607

Intel Core i5 6400

1143

Geekbench 6 Multi Core

AMD Ryzen 7 7800X3D +343%

14702

Intel Core i5 6400

3312

Blender

AMD Ryzen 7 7800X3D +721%

337

Intel Core i5 6400

41

Geekbench 5 Single Core

AMD Ryzen 7 7800X3D +127%

1940

Intel Core i5 6400

853

Geekbench 5 Multi Core

AMD Ryzen 7 7800X3D +385%

13605

Intel Core i5 6400

2805

AMD Ryzen 7 7800X3D

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Intel Core i5 6400

General Parameters

Jan 2023

Release Date

Sep 2015

AMD

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 4 (Raphael)

Core Architecture

Skylake

-

Processor Number

i5-6400

AM5

Socket

LGA-1151

Radeon Graphics (Ryzen 7000)

Integrated Graphics

HD Graphics 530

Package

6.57 billions

Transistor Count

-

5 nm

Manufacturing Process

14 nm

AM5

Socket

LGA-1151

120 W

Power Consumption

65 W

89°C

Peak Operating Temperature

-

CPU Performance

8

Performance Cores

4

16

Performance Core Threads

4

4.4 GHz

Performance Core Base Frequency

2.7 GHz

5 GHz

Performance Core Turbo Frequency

3.3 GHz

8

Total Core Count

4

16

Total Thread Count

4

100 MHz

Bus Frequency

100 MHz

44x

Multiplier

27x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

256 K per core

96 MB shared

L3 Cache

6 MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR5-5200

Memory Types

DDR4-2133, DDR3L-1600

128 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

34.1 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

1500 MHz

GPU Base Frequency

-

2200 MHz

GPU Max Dynamic Frequency

950 MHz

128

Shader Units

-

8

Texture Units

-

4

Raster Operation Units

-

2

Execution Units

-

15 W

Power Consumption

-

0.54 TFLOPS

Graphics Performance

-

Miscellaneous

AMD Ryzen 7 7800X3D

Official Website

Intel Core i5 6400

5.0

PCIe Version

3.0

24

PCIe Lanes

16

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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