AMD Ryzen 9 3900XT vs AMD Ryzen 7 5800X

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

Main Differences

AMD Ryzen 9 3900XT's Advantages

Larger L3 cache size (64MB vs 32MB)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 3900XT

1352

AMD Ryzen 7 5800X +18%

1596

Cinebench R23 Multi Core

AMD Ryzen 9 3900XT +20%

18391

AMD Ryzen 7 5800X

15228

Geekbench 6 Single Core

AMD Ryzen 9 3900XT

1763

AMD Ryzen 7 5800X +26%

2230

Geekbench 6 Multi Core

AMD Ryzen 9 3900XT +7%

11025

AMD Ryzen 7 5800X

10271

Cinebench 2024 Single Core

AMD Ryzen 9 3900XT

79

AMD Ryzen 7 5800X +22%

97

Cinebench 2024 Multi Core

AMD Ryzen 9 3900XT +20%

1074

AMD Ryzen 7 5800X

888

Geekbench 5 Single Core

AMD Ryzen 9 3900XT

1311

AMD Ryzen 7 5800X +23%

1623

Geekbench 5 Multi Core

AMD Ryzen 9 3900XT +16%

12279

AMD Ryzen 7 5800X

10572

Passmark CPU Single Core

AMD Ryzen 9 3900XT

2769

AMD Ryzen 7 5800X +24%

3444

Passmark CPU Multi Core

AMD Ryzen 9 3900XT +17%

32856

AMD Ryzen 7 5800X

27907

AMD Ryzen 9 3900XT

VS

AMD Ryzen 7 5800X

General Parameters

Jul 2020

Release Date

Oct 2020

Amd

Manufacturer

Amd

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 2 (Matisse)

Core Architecture

Zen 3 (Vermeer)

AM4

Socket

AM4

No

Integrated Graphics

No

Package

3.8 billions

Transistor Count

4.15 billions

7 nm

Manufacturing Process

7 nm

AM4

Socket

AM4

105 W

Power Consumption

105 W

95°C

Peak Operating Temperature

90°C

CPU Performance

12

Performance Cores

8

24

Performance Core Threads

16

3.8 GHz

Performance Core Base Frequency

3.8 GHz

4.7 GHz

Performance Core Turbo Frequency

4.7 GHz

12

Total Core Count

8

24

Total Thread Count

16

100MHz

Bus Frequency

100MHz

38x

Multiplier

38x

64K per core

L1 Cache

64K per core

512K per core

L2 Cache

512K per core

64MB shared

L3 Cache

32MB 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 9 3900XT

Official Website

AMD Ryzen 7 5800X

4.0

PCIe Version

4.0

24

PCIe Lanes

20

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