Ryzen 9 PRO 3900

12 cores · 24 threads · up to 4.3 GHz on Socket AM4.

4.9 · 9 votes

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Cores

Threads

Boost

4.3 GHz

L3 cache

64 MB

TDP

65W

Socket

Socket AM4

Performance breakdown

Gaming19

Productivity18

Single-core18

Multi-core50

Power efficiency19

Lab scores

Performance score19

Cores12

Threads24

Boost clock (GHz)4.3 GHz

Estimated gaming FPS

Paired with a high-end GPU. CPU impact is largest at 1080p.

1080p42 fps

1440p33 fps

4K23 fps

Full specifications

Processor & cores

Architecture: Zen 2
Process node: 7 nm
Socket: Socket AM4
Release year: 2019
Total cores: 12
Threads: 24

Clocks & cache

Base clock: 3.1 GHz
Boost clock: 4.3 GHz
L1 cache: 768 KB
L2 cache: 6 MB
L3 cache: 64 MB

Memory & platform

Memory support: DDR4-3200
Max capacity: 128 GB
Channels: 2
Max bandwidth: 51.196 GB/s
Base power (TDP): 65W

Technologies

Extensions: AES-NI, AVX, AMD-V, Precision Boost 2

Community Feedback

What Owners Say

Owners love the solid multi-core grunt for workstation tasks without the high power draw. The main gripe is the high price and limited gaming edge over cheaper options.

Pros

Flies under the radar for office work
Twelve cores eat through heavy tasks
Stays cool on the stock cooler
Sips power without sacrificing performance

Cons

No integrated graphics at all
No PCIe 4.0 support
Locked multiplier limits overclocking

Verdict

Our verdict on the Ryzen 9 PRO 3900

The Ryzen 9 PRO 3900 is a 12-core business workstation CPU that stays cool and quiet without needing a gaming chip's power budget.

Get it if you need a quiet, efficient workhorse for professional multitasking and threaded apps like video editing or compiling. Skip it if you want top gaming speed or single-core performance, where newer or higher-clocked chips are better.