AMD Ryzen 9 3900X vs AMD Ryzen 7 7800X3D

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We compared two desktop CPUs: AMD Ryzen 9 3900X with 12 cores 3.8GHz and AMD Ryzen 7 7800X3D with 8 cores 4.4GHz . 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 120W)

AMD Ryzen 7 7800X3D '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)

Higher base frequency (4.4GHz vs 3.8GHz)

Larger L3 cache size (96MB vs 64MB)

More modern manufacturing process (5nm vs 7nm)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 3900X

1313

AMD Ryzen 7 7800X3D +38%

1817

Cinebench R23 Multi Core

AMD Ryzen 9 3900X +5%

18656

AMD Ryzen 7 7800X3D

17762

Geekbench 6 Single Core

AMD Ryzen 9 3900X

1842

AMD Ryzen 7 7800X3D +41%

2607

Geekbench 6 Multi Core

AMD Ryzen 9 3900X

11715

AMD Ryzen 7 7800X3D +25%

14702

Cinebench 2024 Single Core

AMD Ryzen 9 3900X

78

AMD Ryzen 7 7800X3D +41%

110

Cinebench 2024 Multi Core

AMD Ryzen 9 3900X

1068

AMD Ryzen 7 7800X3D +4%

1115

Geekbench 5 Single Core

AMD Ryzen 9 3900X

1319

AMD Ryzen 7 7800X3D +47%

1940

Geekbench 5 Multi Core

AMD Ryzen 9 3900X

11991

AMD Ryzen 7 7800X3D +13%

13605

AMD Ryzen 9 3900X

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AMD Ryzen 7 7800X3D

General Parameters

Jul 2019

Release Date

Jan 2023

AMD

Manufacturer

AMD

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 2

Core Architecture

Zen 4 (Raphael)

AM4

Socket

AM5

N/A

Integrated Graphics

Radeon Graphics (Ryzen 7000)

Package

3.8 billions

Transistor Count

6.57 billions

7 nm

Manufacturing Process

5 nm

AM4

Socket

AM5

105 W

Power Consumption

120 W

95 °C

Peak Operating Temperature

89°C

CPU Performance

12

Performance Cores

8

24

Performance Core Threads

16

3.8 GHz

Performance Core Base Frequency

4.4 GHz

4.6 GHz

Performance Core Turbo Frequency

5 GHz

12

Total Core Count

8

24

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

44x

64 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

1 MB per core

64 MB shared

L3 Cache

96 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

Yes

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

1500 MHz

-

GPU Max Dynamic Frequency

2200 MHz

-

Shader Units

128

-

Texture Units

8

-

Raster Operation Units

4

-

Execution Units

2

-

Power Consumption

15 W

-

Graphics Performance

0.54 TFLOPS

Miscellaneous

AMD Ryzen 9 3900X

Official Website

AMD Ryzen 7 7800X3D

4.0

PCIe Version

5.0

16

PCIe Lanes

24

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