AMD Ryzen 9 7900X vs AMD Ryzen 5 8400F

VS

AMD Ryzen 9 7900X

AMD Ryzen 5 8400F

We compared two desktop CPUs: AMD Ryzen 9 7900X with 12 cores 4.7GHz and AMD Ryzen 5 8400F with 6 cores 4.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 7900X 's Advantages

Integrated graphics card

Newer PCIe version (5.0 vs 4.0)

Higher base frequency (4.7GHz vs 4.2GHz)

Larger L3 cache size (64MB vs 16MB)

AMD Ryzen 5 8400F 's Advantages

Released 1 years and 8 months late

More modern manufacturing process (4nm vs 5nm)

Lower TDP (65W vs 170W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7900X +20%

2033

AMD Ryzen 5 8400F

1691

Cinebench R23 Multi Core

AMD Ryzen 9 7900X +118%

29242

AMD Ryzen 5 8400F

13361

Geekbench 6 Single Core

AMD Ryzen 9 7900X +17%

2942

AMD Ryzen 5 8400F

2500

Geekbench 6 Multi Core

AMD Ryzen 9 7900X +77%

19092

AMD Ryzen 5 8400F

10760

Passmark CPU Single Core

AMD Ryzen 9 7900X +21%

4317

AMD Ryzen 5 8400F

3553

Passmark CPU Multi Core

AMD Ryzen 9 7900X +124%

52013

AMD Ryzen 5 8400F

23127

AMD Ryzen 9 7900X

VS

AMD Ryzen 5 8400F

General Parameters

Sep 2022

Release Date

May 2024

AMD

Manufacturer

Amd

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Raphael

Core Architecture

Zen 4 (Phoenix)

AM5

Socket

AM5

AMD Radeon™ Graphics

Integrated Graphics

No

-

Generation

Ryzen 5 (Zen 4 (Phoenix))

Package

-

Transistor Count

25 billions

5 nm

Manufacturing Process

4 nm

170 W

Power Consumption

45-65 W

95 °C

Peak Operating Temperature

95 °C

-

Foundry

TSMC

-

Die Size

178 mm²

CPU Performance

12

Performance Cores

6

24

Performance Core Threads

12

4.7 GHz

Performance Core Base Frequency

4.2 GHz

5.6 GHz

Performance Core Turbo Frequency

4.7 GHz

12

Total Core Count

6

24

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

47x

Multiplier

42

-

L1 Cache

64 K per core

12 MB shared

L2 Cache

1 MB per core

64 MB shared

L3 Cache

16 MB shared

Yes

Unlocked Multiplier

Yes

-

SMP

1

Memory Parameters

DDR5-5200

Memory Types

DDR5-5200

128 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

83.2 GB/s

-

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

-

Miscellaneous

AMD Ryzen 9 7900X

Official Website

AMD Ryzen 5 8400F

5.0

PCIe Version

4.0

24

PCIe Lanes

20

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