AMD Ryzen 9 3900X vs AMD Ryzen 9 7900X

VS

AMD Ryzen 9 3900X

AMD Ryzen 9 7900X

We compared two desktop CPUs: AMD Ryzen 9 3900X with 12 cores 3.8GHz and AMD Ryzen 9 7900X with 12 cores 4.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 3900X 's Advantages

Lower TDP (105W vs 170W)

AMD Ryzen 9 7900X 's Advantages

Released 3 years and 2 months late

Integrated graphics card

Higher specification of memory (5200 vs 3200)

Larger memory bandwidth (83.2GB/s vs 47.68GB/s)

Newer PCIe version (5.0 vs 4.0)

Higher base frequency (4.7GHz vs 3.8GHz)

More modern manufacturing process (5nm vs 7nm)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 3900X

1306

AMD Ryzen 9 7900X +55%

2033

Cinebench R23 Multi Core

AMD Ryzen 9 3900X

18454

AMD Ryzen 9 7900X +58%

29242

Geekbench 6 Single Core

AMD Ryzen 9 3900X

1842

AMD Ryzen 9 7900X +59%

2942

Geekbench 6 Multi Core

AMD Ryzen 9 3900X

11715

AMD Ryzen 9 7900X +62%

19092

Cinebench 2024 Single Core

AMD Ryzen 9 3900X

78

AMD Ryzen 9 7900X +52%

119

Cinebench 2024 Multi Core

AMD Ryzen 9 3900X

1068

AMD Ryzen 9 7900X +53%

1643

Geekbench 5 Single Core

AMD Ryzen 9 3900X

1319

AMD Ryzen 9 7900X +72%

2277

Geekbench 5 Multi Core

AMD Ryzen 9 3900X

11991

AMD Ryzen 9 7900X +70%

20503

Passmark CPU Single Core

AMD Ryzen 9 3900X

2683

AMD Ryzen 9 7900X +60%

4317

Passmark CPU Multi Core

AMD Ryzen 9 3900X

32531

AMD Ryzen 9 7900X +59%

52013

AMD Ryzen 9 3900X

VS

AMD Ryzen 9 7900X

General Parameters

Jul 2019

Release Date

Sep 2022

AMD

Manufacturer

AMD

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 2

Core Architecture

Raphael

AM4

Socket

AM5

N/A

Integrated Graphics

AMD Radeon™ Graphics

Package

3.8 billions

Transistor Count

-

7 nm

Manufacturing Process

5 nm

105 W

Power Consumption

170 W

95 °C

Peak Operating Temperature

95 °C

CPU Performance

12

Performance Cores

12

24

Performance Core Threads

24

3.8 GHz

Performance Core Base Frequency

4.7 GHz

4.6 GHz

Performance Core Turbo Frequency

5.6 GHz

12

Total Core Count

12

24

Total Thread Count

24

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

47x

64 K per core

L1 Cache

-

512 K per core

L2 Cache

12 MB shared

64 MB shared

L3 Cache

64 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-3200

Memory Types

DDR5-5200

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

47.68 GB/s

Max Memory Bandwidth

83.2 GB/s

Yes

ECC Memory Support

-

Graphics Card Parameters

-

Integrated Graphics

true

Miscellaneous

AMD Ryzen 9 3900X

Official Website

AMD Ryzen 9 7900X

4.0

PCIe Version

5.0

16

PCIe Lanes

24

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