AMD · CPU

AMD Ryzen 9 3900X — Benchmarks & Specs

12 cores24 threads105W TDP$499 MSRP2019

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

In PassMark CPU Mark it scores 32,491 points, per PassMark Software. Across all its cores it scores 18,682 points in Cinebench R23 multi, per CGDirector.

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.

Read the full comparison → RTX 3060 12GB vs Ryzen 9 3900X for Qwen2.5 14B: GPU or CPU in 2026?

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 listings. Data on this page draws on 9 synthetic benchmark results, compiled from CGDirector, GadgetVersus, NanoReview, PassMark Software, HWBOT; each table row links to its source. Read this page when shopping the Ryzen 9 3900X, comparing it against other processors in your build, or sizing it for a specific workload (synthetic benchmark scores).

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. A benchmark listed more than once is separate published results, shown as published rather than averaged.
Benchmark	Score	Source
PassMark CPU Mark	32,491 points	PassMark Software retrieved 2026-06-05
Cinebench R23 multi	18,682 points	CGDirector 2024-01-09
Geekbench 6 multi	10,470 points	NanoReview retrieved 2026-07-05
Geekbench 6 multi	9,259 points	GadgetVersus (aggregated from Geekbench Browser) retrieved 2026-08-22
PassMark CPU Mark single thread	2,702 points	PassMark Software retrieved 2026-08-24
Geekbench 6 single	1,699 points	NanoReview retrieved 2026-07-05
Geekbench 6 single	1,682 points	GadgetVersus (aggregated from Geekbench Browser) retrieved 2026-08-22
Cinebench R23 single	1,312 points	CGDirector 2024-01-09
Y-cruncher Pi 1B	88.55 seconds	HWBOT 2019-12-31

Products Featuring the Ryzen 9 3900X

AMD

Ryzen 9 3900X 12-core, 24-thread Unlocked Desktop processor with Wraith Prism LED Cooler

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AMD

Ryzen 9 3900X 12-core, 24-thread unlocked desktop processor with Wraith Prism LED Cooler (Renewed)

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Full Specifications

PCIe	Gen 4, 24 Lanes (CPU only)
Cores	12
TDP	105 W
Socket	AMD Socket AM4
Threads	24
Codename	Matisse
Process	7 nm
L3 cache	64 MB
Base clock	3.8 GHz
Memory support	DDR4
Boost clock	4.6 GHz
Integrated graphics	No

Ryzen 9 3900X — Frequently Asked Questions

What is the Ryzen 9 3900X best used for?

Ryzen 9 3900X is a 12-core processor. Gaming, streaming and mainstream productivity are the typical workloads.

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 drift from launch pricing over a product's life, so check the current listing before buying.

Where do the Ryzen 9 3900X benchmark numbers come from?

Each benchmark row on this page names its source (public benchmark databases such as TechPowerUp, PassMark, Geekbench and Cinebench, and community reports such as r/LocalLLaMA threads) and links to it, so every number can be checked against the original.

How many cores does the Ryzen 9 3900X have, and how does it benchmark?

Ryzen 9 3900X has 12 cores and 24 threads. Synthetic benchmark results (PassMark CPU Mark, Cinebench, Geekbench) are in the Synthetic Benchmarks section.

Where can I buy the Ryzen 9 3900X?

Amazon listings for the Ryzen 9 3900X are linked at the top of this page and in the Products Featuring the Ryzen 9 3900X section. SpecPicks earns a small affiliate commission on qualifying purchases, at no extra cost to the buyer.