Skip to main content
Ryzen 9 3900X
AMD · CPU

Ryzen 9 3900X — Benchmarks & Specs

12 cores24 threads105W TDP$499 MSRP2019
Buy Ryzen 9 3900X on Amazon →

*Price sourced from Amazon.com. Price and availability subject to change.

Bottom line: how fast is the Ryzen 9 3900X?

In PassMark CPU Mark it scores 32,491 points, per PassMark Software.

Every figure above is a row in the tables below, and each row links out to the review or public benchmark database the number was taken from. SpecPicks aggregates published measurements; it does not report first-party benchmark runs.

The Ryzen 9 3900X is a processor released in 2019 from AMD. Key on-paper specs include 12 cores / 24 threads, boost clock of 4.6 GHz, 105W TDP. It launched with a $499 MSRP, though street prices typically diverge meaningfully from launch pricing — see the linked product cards below for current Amazon listings. Data on this page draws on 10 synthetic benchmark results, aggregated from public benchmark databases (TechPowerUp, PassMark, Geekbench, Cinebench) and the LocalLLaMA community. Read this page when shopping the Ryzen 9 3900X, comparing it against other processors in your build, or sizing it for a specific workload (gaming at 1080p/1440p/4K, productivity benchmarks, or local LLM inference).

Synthetic Benchmarks

Higher is better. Bars are scaled within each benchmark family (multi-thread, single-thread, etc.) so you can compare like-with-like at a glance.

Synthetic benchmark scores for the Ryzen 9 3900X — higher is better. Each row links to the public database the number was taken from.
Benchmark Relative Score Source
PassMark CPU Mark 32,491 points PassMark Software 2026-06-05
Cinebench R23 multi 18,682 points CGDirector 2024-01-09
Cinebench R23 multi 18,682 points CG Director 2024-01-09
Geekbench 6 multi 10,470 points Nanoreview 2025-02-01
Geekbench 6 multi 9,259 points GadgetVersus (Geekbench Browser aggregate) 2024-01-01
Geekbench 6 multi 9,259 points GadgetVersus 2026-08-21
Geekbench 6 multi 9,259 points Gadget Versus (Geekbench Browser aggregation, Windows) 2026-06-05
Geekbench 6 multi 9,259 points GadgetVersus (aggregated from Geekbench Browser) 2026-08-22
PassMark Single Thread Rating 2,702 points PassMark Software 2026-08-24
PassMark Single Thread 2,702 points PassMark Software 2026-08-23

Products Featuring the Ryzen 9 3900X

Full Specifications

pcieGen 4, 24 Lanes (CPU only)
cores12
tdp w105
socketAMD Socket AM4
threads24
codenameMatisse
process nm7
l3 cache mb64
base clock ghz3.8
memory supportDDR4
boost clock ghz4.6
integrated graphicsfalse

Ryzen 9 3900X — Frequently Asked Questions

What is the Ryzen 9 3900X best used for?
Ryzen 9 3900X is a 12-core processor. Use it for gaming + streaming and mainstream productivity. Check the synthetic benchmark scores below for at-a-glance comparison.
When was the Ryzen 9 3900X released, and what was its launch MSRP?
Ryzen 9 3900X launched in 2019 at a $499 MSRP. Street prices diverge from launch pricing over a product's lifetime — check the linked Amazon listings on this page for current availability.
Where do the benchmark numbers on this page come from?
Synthetic benchmarks are scraped from public databases (TechPowerUp, PassMark, Geekbench Browser, Cinebench leaderboards). AI inference numbers come from the LocalLLaMA community (Reddit threads, llama.cpp / Ollama discussion logs, and Phoronix when available). Every benchmark row carries an inline source citation — click through to verify the original number.
How does the Ryzen 9 3900X compare to its predecessor?
Compare Ryzen 9 3900X side-by-side against other processors on the Compare tool below. Synthetic benchmark scores let you place this SKU within its generation; the spec table shows the architectural and process-node differences from one generation to the next.
Where can I buy the Ryzen 9 3900X?
Amazon listings are linked at the top of this page (in the hero CTA) and in the "Products Featuring this Hardware" section below. SpecPicks earns a small affiliate commission on qualifying purchases.

Buying guides that rank the Ryzen 9 3900X's class

This page is the raw performance data. The guides below turn it into a ranked pick for a specific build.

Related CPUs

Editorial guides covering the Ryzen 9 3900X

In-depth SpecPicks reviews, build guides, and head-to-heads referencing this processor.

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

More buying guides from SpecPicks

Browse all buying guides →
Ryzen 9 3900X
Ryzen 9 3900X
$228.69
View on Amazon →