AMD Ryzen 9 3900XT vs AMD Ryzen 9 7950X3D

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We compared two desktop CPUs: AMD Ryzen 9 3900XT with 12 cores 3.8GHz and AMD Ryzen 9 7950X3D with 16 cores 4.2GHz . 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

Lower TDP (105W vs 120W)

AMD Ryzen 9 7950X3D 's Advantages

Released 2 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 (4.2GHz vs 3.8GHz)

Larger L3 cache size (128MB vs 64MB)

More modern manufacturing process (5nm vs 7nm)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 3900XT

1352

AMD Ryzen 9 7950X3D +51%

2043

Cinebench R23 Multi Core

AMD Ryzen 9 3900XT

18436

AMD Ryzen 9 7950X3D +109%

38581

Geekbench 6 Single Core

AMD Ryzen 9 3900XT

1763

AMD Ryzen 9 7950X3D +70%

3012

Geekbench 6 Multi Core

AMD Ryzen 9 3900XT

11025

AMD Ryzen 9 7950X3D +83%

20270

Cinebench 2024 Single Core

AMD Ryzen 9 3900XT

79

AMD Ryzen 9 7950X3D +53%

121

Cinebench 2024 Multi Core

AMD Ryzen 9 3900XT

1074

AMD Ryzen 9 7950X3D +96%

2108

Blender

AMD Ryzen 9 3900XT

287

AMD Ryzen 9 7950X3D +137%

681

Geekbench 5 Single Core

AMD Ryzen 9 3900XT

1311

AMD Ryzen 9 7950X3D +74%

2294

Geekbench 5 Multi Core

AMD Ryzen 9 3900XT

12279

AMD Ryzen 9 7950X3D +97%

24247

Passmark CPU Single Core

AMD Ryzen 9 3900XT

2769

AMD Ryzen 9 7950X3D +49%

4148

Passmark CPU Multi Core

AMD Ryzen 9 3900XT

32856

AMD Ryzen 9 7950X3D +90%

62623

AMD Ryzen 9 3900XT

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AMD Ryzen 9 7950X3D

General Parameters

Jul 2020

Release Date

Jan 2023

Amd

Manufacturer

Amd

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 2 (Matisse)

Core Architecture

Zen 4 (Raphael)

AM4

Socket

AM5

No

Integrated Graphics

Radeon Graphics (Ryzen 7000)

Package

3.8 billions

Transistor Count

13.1 billions

7 nm

Manufacturing Process

5 nm

AM4

Socket

AM5

105 W

Power Consumption

120 W

-

Max Turbo Power Consumption

162 W

95°C

Peak Operating Temperature

89°C

CPU Performance

12

Performance Cores

16

24

Performance Core Threads

32

3.8 GHz

Performance Core Base Frequency

4.2 GHz

4.7 GHz

Performance Core Turbo Frequency

5.7 GHz

12

Total Core Count

16

24

Total Thread Count

32

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

42x

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

128 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

448

-

Texture Units

8

-

Raster Operation Units

4

-

Execution Units

2

-

Power Consumption

15 W

-

Graphics Performance

1.43 TFLOPS

Miscellaneous

AMD Ryzen 9 3900XT

Official Website

AMD Ryzen 9 7950X3D

4.0

PCIe Version

5.0

24

PCIe Lanes

28

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