AMD Ryzen 9 7900 vs Intel Core i5 6400

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We compared two desktop CPUs: AMD Ryzen 9 7900 with 12 cores 3.7GHz 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 7900 '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 (3.7GHz vs 2.7GHz)

Larger L3 cache size (64MB vs 6MB)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7900 +126%

2034

Intel Core i5 6400

898

Cinebench R23 Multi Core

AMD Ryzen 9 7900 +813%

29358

Intel Core i5 6400

3214

Geekbench 6 Single Core

AMD Ryzen 9 7900 +158%

2954

Intel Core i5 6400

1143

Geekbench 6 Multi Core

AMD Ryzen 9 7900 +430%

17582

Intel Core i5 6400

3312

Blender

AMD Ryzen 9 7900 +1109%

496

Intel Core i5 6400

41

Geekbench 5 Single Core

AMD Ryzen 9 7900 +151%

2148

Intel Core i5 6400

853

Geekbench 5 Multi Core

AMD Ryzen 9 7900 +539%

17950

Intel Core i5 6400

2805

Passmark CPU Single Core

AMD Ryzen 9 7900 +111%

4157

Intel Core i5 6400

1961

Passmark CPU Multi Core

AMD Ryzen 9 7900 +848%

48850

Intel Core i5 6400

5151

AMD Ryzen 9 7900

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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

13.1 billions

Transistor Count

-

5 nm

Manufacturing Process

14 nm

AM5

Socket

LGA-1151

65 W

Power Consumption

65 W

142 W

Max Turbo Power Consumption

-

95°C

Peak Operating Temperature

-

CPU Performance

12

Performance Cores

4

24

Performance Core Threads

4

3.7 GHz

Performance Core Base Frequency

2.7 GHz

5.4 GHz

Performance Core Turbo Frequency

3.3 GHz

12

Total Core Count

4

24

Total Thread Count

4

100 MHz

Bus Frequency

100 MHz

37x

Multiplier

27x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

256 K per core

64 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

448

Shader Units

-

8

Texture Units

-

4

Raster Operation Units

-

2

Execution Units

-

15 W

Power Consumption

-

1.43 TFLOPS

Graphics Performance

-

Miscellaneous

AMD Ryzen 9 7900

Official Website

Intel Core i5 6400

5.0

PCIe Version

3.0

28

PCIe Lanes

16

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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