AMD Ryzen 7 5800X vs AMD Ryzen 9 3900X

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We compared two desktop CPUs: AMD Ryzen 7 5800X with 8 cores 3.8GHz and AMD Ryzen 9 3900X with 12 cores 3.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 7 5800X 's Advantages

Released 1 years and 3 months late

AMD Ryzen 9 3900X 's Advantages

Larger L3 cache size (64MB vs 32MB)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 7 5800X +22%

1596

AMD Ryzen 9 3900X

1302

Cinebench R23 Multi Core

AMD Ryzen 7 5800X

15228

AMD Ryzen 9 3900X +21%

18529

Geekbench 6 Single Core

AMD Ryzen 7 5800X +21%

2230

AMD Ryzen 9 3900X

1842

Geekbench 6 Multi Core

AMD Ryzen 7 5800X

10271

AMD Ryzen 9 3900X +14%

11715

Cinebench 2024 Single Core

AMD Ryzen 7 5800X +24%

97

AMD Ryzen 9 3900X

78

Cinebench 2024 Multi Core

AMD Ryzen 7 5800X

888

AMD Ryzen 9 3900X +20%

1068

Geekbench 5 Single Core

AMD Ryzen 7 5800X +23%

1623

AMD Ryzen 9 3900X

1319

Geekbench 5 Multi Core

AMD Ryzen 7 5800X

10572

AMD Ryzen 9 3900X +13%

11991

Passmark CPU Single Core

AMD Ryzen 7 5800X +28%

3444

AMD Ryzen 9 3900X

2683

Passmark CPU Multi Core

AMD Ryzen 7 5800X

27907

AMD Ryzen 9 3900X +16%

32531

AMD Ryzen 7 5800X

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AMD Ryzen 9 3900X

General Parameters

Oct 2020

Release Date

Jul 2019

Amd

Manufacturer

AMD

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 3 (Vermeer)

Core Architecture

Zen 2

AM4

Socket

AM4

No

Integrated Graphics

N/A

Package

4.15 billions

Transistor Count

3.8 billions

7 nm

Manufacturing Process

7 nm

AM4

Socket

AM4

105 W

Power Consumption

105 W

90°C

Peak Operating Temperature

95 °C

CPU Performance

8

Performance Cores

12

16

Performance Core Threads

24

3.8 GHz

Performance Core Base Frequency

3.8 GHz

4.7 GHz

Performance Core Turbo Frequency

4.6 GHz

8

Total Core Count

12

16

Total Thread Count

24

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

38x

64 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

512 K per core

32 MB shared

L3 Cache

64 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-3200

Memory Types

DDR4-3200

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

47.68 GB/s

Max Memory Bandwidth

47.68 GB/s

Yes

ECC Memory Support

Yes

Miscellaneous

AMD Ryzen 7 5800X

Official Website

AMD Ryzen 9 3900X

4.0

PCIe Version

4.0

20

PCIe Lanes

16

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