AMD Ryzen 9 7900 vs AMD Ryzen 9 3900X

VS

AMD Ryzen 9 7900 AMD Ryzen 9 3900X

We compared two desktop CPUs: AMD Ryzen 9 7900 with 12 cores 3.7GHz 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 9 7900 's Advantages

Released 3 years and 6 months late

Integrated graphics card

Higher specification of memory (DDR5-5200 vs DDR4-3200)

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

Newer PCIe version (5.0 vs 4.0)

Lower TDP (65W vs 105W)

AMD Ryzen 9 3900X 's Advantages

Higher base frequency (3.8GHz vs 3.7GHz)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7900 +54%

2034

AMD Ryzen 9 3900X

1313

Cinebench R23 Multi Core

AMD Ryzen 9 7900 +57%

29358

AMD Ryzen 9 3900X

18656

Geekbench 6 Single Core

AMD Ryzen 9 7900 +60%

2954

AMD Ryzen 9 3900X

1842

Geekbench 6 Multi Core

AMD Ryzen 9 7900 +50%

17582

AMD Ryzen 9 3900X

11715

Cinebench 2024 Single Core

AMD Ryzen 9 7900 +52%

119

AMD Ryzen 9 3900X

78

Cinebench 2024 Multi Core

AMD Ryzen 9 7900 +52%

1632

AMD Ryzen 9 3900X

1068

Geekbench 5 Single Core

AMD Ryzen 9 7900 +62%

2148

AMD Ryzen 9 3900X

1319

Geekbench 5 Multi Core

AMD Ryzen 9 7900 +49%

17950

AMD Ryzen 9 3900X

11991

Passmark CPU Single Core

AMD Ryzen 9 7900 +54%

4157

AMD Ryzen 9 3900X

2683

Passmark CPU Multi Core

AMD Ryzen 9 7900 +50%

48850

AMD Ryzen 9 3900X

32531

AMD Ryzen 9 7900

VS

AMD Ryzen 9 3900X

General Parameters

Jan 2023

Release Date

Jul 2019

Amd

Manufacturer

AMD

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 4 (Raphael)

Core Architecture

Zen 2

AM5

Socket

AM4

Radeon Graphics (Ryzen 7000)

Integrated Graphics

N/A

Package

13.1 billions

Transistor Count

3.8 billions

5 nm

Manufacturing Process

7 nm

AM5

Socket

AM4

65 W

Power Consumption

105 W

142 W

Max Turbo Power Consumption

-

95°C

Peak Operating Temperature

95 °C

CPU Performance

12

Performance Cores

12

24

Performance Core Threads

24

3.7 GHz

Performance Core Base Frequency

3.8 GHz

5.4 GHz

Performance Core Turbo Frequency

4.6 GHz

12

Total Core Count

12

24

Total Thread Count

24

100 MHz

Bus Frequency

100 MHz

37x

Multiplier

38x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

512 K per core

64 MB shared

L3 Cache

64 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR5-5200

Memory Types

DDR4-3200

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

47.68 GB/s

Yes

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

-

1500 MHz

GPU Base Frequency

-

2200 MHz

GPU Max Dynamic Frequency

-

448

Shader Units

-

8

Texture Units

-

4

Raster Operation Units

-

2

Execution Units

-

15 W

Power Consumption

-

1.43 TFLOPS

Graphics Performance

-

Miscellaneous

AMD Ryzen 9 7900

Official Website

AMD Ryzen 9 3900X

5.0

PCIe Version

4.0

28

PCIe Lanes

16

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