Ryzen 9 3900
The Ryzen 9 3900 is AMD’s 12-core, 24-thread processor for the AM4 platform, built on the Zen 2 architecture. Below you’ll find its full spec sheet with gaming and productivity benchmarks, plus every retailer’s current price in Germany.
Prices update regularly and may differ at the retailer. This page contains affiliate links.
Prices include 19% VAT. Shipping is shown under each price, and offers are listed by price plus shipping.

Gaming performance
CPU-bound gaming score: a 1080p rating normalized so the fastest gaming CPU we track = 100. Productivity scores are in the Benchmarks section below.
Gaming scores are normalised performance indexes derived from Tom’s Hardware’s published CPU gaming benchmarks. Performance per dollar is our own calculation on top of that data.
1080p Gaming
Gaming score for the Ryzen 9 3900 isn’t rated yet. The productivity benchmarks below still apply.
Performance-per-euro rank among all CPUs with live pricing in Germany
Gaming value
—
Productivity value
#11
Benchmarks
Standardized productivity scores for this chip, each compared to the fastest CPU we track and linked to its source. Multi-core tracks heavy parallel work like rendering and encoding; single-core tracks everyday responsiveness.
Multi-core
Single-core
Where to buy the Ryzen 9 3900
Every in-stock retailer offer we track, cheapest first.
| Retailer | Availability | Price | Updated | Buy |
|---|---|---|---|---|
| ProshopOEM / tray | In stock Delivery 1-3 days | €165.00 + €4.99 shipping |
OEM / tray is the bare processor: no retail box and no cooler in the package, and the warranty is handled by the seller. The chip itself is the same.
The Ryzen 9 3900 starts from €165.00 as an OEM / tray chip across 1 retailer. Prices update daily from live stock. Prices include 19% VAT. Shipping is shown under each price, and offers are listed by price plus shipping.
Complete the build
The cheapest in-stock parts that actually fit the Ryzen 9 3900 — matched on socket and power delivery using the same rules as our PC Builder, priced live.

The most affordable AM4 board in stock that is wired to feed the Ryzen 9 3900 at full power. It takes DDR4 memory.
Contains affiliate links. Prices update regularly and may differ at the retailer.
Specifications
Cores & Clocks
- Cores / Threads
- 12 / 24
- Base clock
- 3.1 GHz
- Boost clock
- 4.3 GHz
- Architecture
- Zen 2
Cache & Process
- L3 cache
- 64 MB
- L2 cache
- 6 MB
- Process node
- TSMC N7
- Released
- 2019-09-30
Memory & Platform
- Socket
- AM4
- Memory channels
- 2
- Max memory
- 128 GB
- Memory support
- DDR4, 3200
- Chipsets
- "A300, X300, A320, B350, X370, B450, X470, A520, B550, X570"
- PCIe
- PCIe 4.0
- ECC support
- No
Power & Extras
- TDP
- 65W
- Max power
- 142W
- Integrated graphics
- None
The Ryzen 9 3900 pairs 12 cores with 64 MB of L3 cache on the TSMC N7 process. Compare the Ryzen 9 3900 against the full CPU lineup on the full processor rankings, or build a compatible system around it with the PC Builder.
Affiliate disclosure: Some links on this page are affiliate links — MaxMyBuild may earn a commission at no extra cost to you if you buy through them. As an Amazon Associate, MaxMyBuild earns from qualifying purchases. For Amazon, current price and availability are shown on the Amazon product page; product prices and availability are accurate as of the date and time of purchase and are subject to change. Prices shown for other retailers are approximate and may differ at checkout. “Search” links are non-affiliate and provided for convenience only.

