AMD Ryzen 9 3900X - CPU Specs

Specifications Benchmarks Synonyms

Specifications

Technical data

Legacy catalog specifications; the original verification date is not recorded.

CPU generation and family

CPU group
AMD Ryzen 3000
Family
AMD Ryzen
Generation
3
Name
AMD Ryzen 9 3900X
Predecessor
—
Segment
Desktop / Server
Successor
AMD Ryzen 9 5900X

CPU Cores and Base Frequency

Base Frequency
3.8 GHz
Core architecture
normal
Core Configuration
12x
CPU Cores
12
CPU Threads
24
Hyperthreading / SMT
Yes
Overclocking
Yes
Turbo Frequency (1 Core)
4.6 GHz
Turbo Frequency (12 Cores)
4.2 GHz

Internal Graphics

GPU name
None
Graphics verification source
https://www.amd.com/en/products/specifications/processors.html

Hardware codec support

AV1
No
H.264 / AVC
No
h265 / HEVC (8 bit)
No
h265 / HEVC (10 bit)
No
JPEG
No
VC-1
No
VP8
No
VP9
No

Memory & PCIe

ECC
Yes
Max. Memory
128 GB
Memory Bandwidth
51.2 GB/s
Memory channels
2
Memory type
DDR4-3200
PCIe
4.0 x 20

Encryption

AES-NI
Yes

Thermal Management

Maximum Operating Temperature
95 °C
TDP (PL1, legacy label)
105 W
TDP (PL2)
142 W
TDP down
—
TDP up
—

Technical details

Architecture
Matisse (Zen 2)
Documents
—
Instruction set (ISA)
x86-64 (64 bit)
ISA extensions
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
L2-Cache
6.00 MB
L3-Cache
64.00 MB
Part Number
—
Release date
Q3/2019
Socket
AM4
Technology
7 nm
Virtualization
AMD-V, SVM

Positions in all rankings

Common positions AMD Ryzen 9 3900X CPU in popular benchmarks, for comparison with other models.

Cinebench R23 (Single-Core)

139 place
Cinebench R23 (Multi-Core)

51 place
Cinebench R20 (Single-Core)

108 place
Cinebench R20 (Multi-Core)

45 place
Cinebench R15 (Single-Core)

53 place
Cinebench R15 (Multi-Core)

49 place
Geekbench 5, 64bit (Single-Core)

204 place
Geekbench 5, 64bit (Multi-Core)

76 place
Monero Hashrate kH/s

23 place
Blender 2.81 (bmw27)

13 place
Estimated results for PassMark CPU Mark

45 place

Blender Open Data

Official median of community submissions; higher is better. Blender versions, operating systems and compute backends remain separate.

Blender 5.2.0 / CPU / Windows: 282.7407 samples/min submissions: 5; snapshot: 2026-09-30 Official source

Snapshot date is the retrieval date, not the measurement date. Individual dates, RAM, drivers and power limits are unknown. This aggregates different user systems; it is not a test of a specific partner board and is excluded from the legacy composite index.

Benchmarks

Performance tests CPU

Compare the scores of popular benchmarks AMD Ryzen 9 3900X with other processors to understand the real speed of the CPU when processing content.

Tests include mathematical calculations, creation of 3D models, cryptocurrency mining, tests in single and multi-core modes.

These are saved results from the earlier catalog. Measurement dates and test configurations were not recorded. Models with no comparable results are omitted.

Cinebench R23 (Single-Core)

Maxon's Cinebench R23 SC is a cross-platform test suite for macOs and Windows uses one CPU core, with no hypetrading

Higher values are better in this metric.

1302

AMD Ryzen 9 3900X

1309

Intel Core i7-10700K

1309

Intel Core i7-10700KF

All the benchmark results

Cinebench R23 (Multi-Core)

Maxon's Cinebench R23 MC is a cross-platform test suite for macOs and Windows using a multi-core and hyperthreading

Higher values are better in this metric.

18165

AMD Ryzen 9 3900X

32623

Intel Xeon E5-2699 v4

18511

AMD Ryzen 9 3900XT

All the benchmark results

Cinebench R20 (Single-Core)

Cinebench R20 SC is a high load CPU test for long tasks on a desktop or notebook PC, uses one CPU core, with no hypetrading

Higher values are better in this metric.

502

AMD Ryzen 9 3900X

507

Intel Core i9-10980HK

506

Intel Core i7-10875H

All the benchmark results

Cinebench R20 (Multi-Core)

Cinebench R20 MC is a high load CPU test for long tasks on a desktop or notebook PC, using a multi-core and hyperthreading

Higher values are better in this metric.

6954

AMD Ryzen 9 3900X

7197

Intel Core i9-12900HX

7170

Intel Core i7-12700H

All the benchmark results

Cinebench R15 (Single-Core)

The Cinebench R15 SC stresses the computing modules of a desktop or laptop computer to their limits and accurately determines the key performance parameters of the hardware

Higher values are better in this metric.

214

AMD Ryzen 9 3900X

215

Intel Core i5-10600K

215

Intel Core i5-10600KF

All the benchmark results

Cinebench R15 (Multi-Core)

The Cinebench R15 MC stresses the computing modules of a desktop or laptop computer to their limits and accurately determines the key performance parameters of the hardware

Higher values are better in this metric.

3168

AMD Ryzen 9 3900X

3188

Intel Xeon Gold 6150

3187

AMD Ryzen Threadripper 2950X

All the benchmark results

Geekbench 5, 64bit (Single-Core)

Geekbench 5 SC is a popular cross-platform performance test for desktop or mobile processors that uses system memory intensively

Higher values are better in this metric.

1300

AMD Ryzen 9 3900X

1304

AMD Ryzen 3 3300X

1302

Intel Core i7-9700K

All the benchmark results

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 MC is a popular cross-platform performance test for desktop or mobile processors that uses system memory intensively

Higher values are better in this metric.

12454

AMD Ryzen 9 3900X

12574

Apple M1 Pro (10-CPU 14-GPU)

12574

Apple M1 Pro (10-CPU 16-GPU)

All the benchmark results

Monero Hashrate kH/s

Monero hashrate is an estimated numerical value that determines how many hashes are generated by miners, benefiting from the number of cores CPU and memory speed

Higher values are better in this metric.

14 kH/s

AMD Ryzen 9 3900X

18 kH/s

AMD Ryzen Threadripper 2990WX

14.5 kH/s

AMD Ryzen 9 5900X

All the benchmark results

Blender 2.81 (bmw27)

Blender is Open Source Software, creating predefined 3D scenes and measuring the time to execute them

Lower values are better; time in seconds.

115.9 s

AMD Ryzen 9 3900X

104.3 s

Intel Core i9-9960X

111.4 s

Intel Core i9-7960X

Estimated results for PassMark CPU Mark

PassMark is a test suite that performs complex mathematical calculations to determine CPU performance on file compression, encryption and physics-related tasks

Higher values are better in this metric.

31947

AMD Ryzen 9 3900X

32941

Intel Xeon Gold 6150

31897

Intel Xeon E7-8880L v2

All the benchmark results

Synonyms

Nearby models in the composite benchmark index.

These are saved results from the earlier catalog. Measurement dates and test configurations were not recorded. Models with no comparable results are omitted. Index 0–100: equal-weight mean of each score relative to the best saved score among models with both tests. Tests: Cinebench R23 Multi-Core + Geekbench 5 Multi-Core. This index does not predict performance in every workload.