AMD Ryzen 9 3900X vs AMD Ryzen 9 9900X3D

VS

AMD Ryzen 9 3900X

AMD Ryzen 9 9900X3D

We compared two desktop CPUs: AMD Ryzen 9 3900X with 12 cores 3.8GHz and AMD Ryzen 9 9900X3D with 12 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 9 9900X3D 's Advantages

Released 5 years and 2 months late

Integrated graphics card

Higher specification of memory (5600 vs 3200)

Larger memory bandwidth (89.6GB/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 (128MB vs 64MB)

More modern manufacturing process (4nm vs 7nm)

Score

AMD Ryzen 9 3900X

VS

AMD Ryzen 9 9900X3D

General Parameters

Jul 2019

Release Date

Sep 2024

AMD

Manufacturer

AMD

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 2

Core Architecture

Zen 5 (Granite Ridge)

AM4

Socket

AM5

N/A

Integrated Graphics

Radeon Graphics

-

Generation

Ryzen 9 (Zen 5 (Granite Ridge))

Package

3.8 billions

Transistor Count

-

7 nm

Manufacturing Process

4 nm

105 W

Power Consumption

120 W

95 °C

Peak Operating Temperature

95°C

-

Foundry

TSMC

-

I/O Process Size

6 nm

CPU Performance

12

Performance Cores

12

24

Performance Core Threads

24

3.8 GHz

Performance Core Base Frequency

4.4 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

44x

64 K per core

L1 Cache

80 K per core

512 K per core

L2 Cache

12 MB

64 MB shared

L3 Cache

128 MB

Yes

Unlocked Multiplier

Yes

-

SMP

1

Memory Parameters

DDR4-3200

Memory Types

DDR5-5600

128 GB

Max Memory Size

192 GB

2

Max Memory Channels

2

47.68 GB/s

Max Memory Bandwidth

89.6 GB/s

Yes

ECC Memory Support

Yes

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

MHz

-

GPU Max Dynamic Frequency

2200 MHz

-

Execution Units

2

Miscellaneous

AMD Ryzen 9 3900X

Official Website

AMD Ryzen 9 9900X3D

4.0

PCIe Version

5.0

16

PCIe Lanes

28

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