12-Core Processing
The Ryzen 9 3900X features 12 CPU cores for multi-threaded workloads.
Updated today
AMD
Ryzen 9 3900X
Established 12-core AM4 CPU with strong multi-threaded capability.
General Information
- Brand
- AMD
- Name
- Ryzen 9 3900X
- Category
- Computer Processors
Find At
$164.80
Compare Retailers
AmazonIn Stock
$199.95Last updated: 11/6/2026
BuyProduct Highlights
The most important capabilities and tradeoffs at a glance.
Strong Multi-Threaded Capability
This processor is designed to deliver strong capability for tasks that use multiple threads.
AM4 Socket Compatibility
The Ryzen 9 3900X uses the AM4 CPU socket.
The AMD Ryzen 9 3900X is an established 12-core processor for the AM4 socket, designed with strong multi-threaded capability.
Media Reviews
Independent perspectives and scores from published reviews.
TweakTown95/100
AMD Ryzen 3900X and 3700X (Zen2) Review
Praises the 3900X for power efficiency, improved gaming and multithreaded performance, and value; notes limited all-core overclocking headroom.
Steven Bassiri · Jul 7, 2019
Tom's Hardware
AMD Ryzen 9 3900X and Ryzen 7 3700X Review: Zen 2 and 7nm Unleashed
Calls the 3900X an exceptionally well-rounded CPU, with major threaded-workload gains, strong gaming performance, and PCIe 4.0 support.
Paul Alcorn · Nov 21, 2019
PCWorld
Ryzen 3000 Review: AMD’s 12-core Ryzen 9 3900X conquers its past
Finds the 3900X exceptionally fast, with outstanding multicore performance and near-parity with Intel in single-threaded workloads; gaming is slightly behind Intel.
Gordon Mah Ung · Jul 17, 2019
TechRadar
Recensione AMD Ryzen 9 3900X
Names it the best mainstream processor available, citing exceptional multithreaded performance, PCIe 4.0, and value versus Intel.
Jacqueline Thomas, Fulvio Novì · Jul 9, 2019
Notebookcheck
AMD Ryzen 9 3900X im Test - 12 Kerne treffen auf Sockel AM4
Praises benchmark performance, especially multicore, but says single-core performance still trails the Core i9-9900K.
Sebastian Bade, Stefanie Voigt · Aug 12, 2019
TechReport
AMD’s Ryzen 7 3700X and Ryzen 9 3900X CPUs reviewed
Reviews the 3900X alongside the 3700X, evaluating performance against Intel alternatives.
Zak Killian · Jul 7, 2019
Video Analysis
Product walkthroughs, comparisons, and long-form video reviews.
14:31
I had given up on AMD… until today - Ryzen 9 3900X & Ryzen 7 3700X Review
Check out the iFixit Essential Electronics Toolkit at https://ifix.gd/2L6qikW or visit https://ifixit.com/Linus for more great tools!
4,871,654 views · 7 years ago
Linus Tech Tips · youtube
36:07
AMD Ryzen 9 3900X Review & Benchmarks: Premiere, Blender, Gaming, & More
For the AMD R9 3900X CPU
441,806 views · 7 years ago
Gamers Nexus · youtube
37:02
AMD Ryzen 9 3900X & Ryzen 7 3700X Review, Zen 2 Has Arrived!
Go to https://NordVPN.com/HardwareUnboxed to get 75% off a 3 year plan plus use code HARDWAREUNBOXED to get one extra ...
268,769 views · 7 years ago
Hardware Unboxed · youtube
2:23
DON'T BUY AMD Ryzen 9 3900X Before Watching This! ⚠️ (6 Reasons)
Looking for the best deal on the AMD
5,229 views · 1 year ago
Critical Reviews · youtube
12:36
How does the AMD Ryzen 9 3900X hold up in 2026?
Does Zen 2 still hold up 7 years later? Should you upgrade? If so, what to? All these questions are answered in this video.
1,787 views · 3 months ago
AmzFourBucks · youtube
3:41
AMD Ryzen 9 3900X Review – 12 Cores & 24 Threads Under $499!
AMD
797 views · 2 months ago
Gear Nexis · youtube
Attributes
Detailed specifications and product characteristics.
ArchitectureZen 2
Base Clock Speed(GHz)3.8 GHz
Cache Size(MB)64 MB
Core Count(cores)12 cores
Cpu SocketAM4
Included CoolerYes
Integrated GraphicsNo
Launch Date2019
Manufacturing Process7nm
Max Boost Clock Speed(GHz)4.6 GHz
Memory SupportDDR4-3200
Overclocking SupportYes
Pci Express VersionPCIe 4.0
Price(USD)164.8 USD
Thermal Design Power(W)105 W
Thread Count(threads)24 threads
Purchase Options
All current listings across the base product and its variants.
AmazonIn Stock
$199.95Last updated: 11/6/2026
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