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

VS

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

100MHz

Bus Frequency

100MHz

38x

Multiplier

38x

64K per core

L1 Cache

64K per core

512K per core

L2 Cache

512K per core

32MB shared

L3 Cache

64MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-3200

Memory Types

DDR4-3200

128GB

Max Memory Size

128GB

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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