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Ryzen 7 5800XT vs Ryzen 9 3900X — Specs & Performance Compared

Verdict: The Ryzen 7 5800XT leads on 3 of 4 shared benchmarks (31% in Geekbench 6 single); the Ryzen 9 3900X takes 1 (16% in PassMark CPU Mark).

Side-by-side CPU comparison of the Ryzen 7 5800XT and the Ryzen 9 3900X. Released 2024 (Ryzen 7 5800XT), 2019 (Ryzen 9 3900X). MSRP range: $249 · $499. Specs, synthetic benchmarks, AI inference tok/s, and Amazon availability below; each column header links to that part's benchmark page.

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

Where to buy

A listing for each part; the current price and stock are on the retailer's page.

Specs side-by-side

SpecRyzen 7 5800XTRyzen 9 3900X
cores 812
threads 1624
base clock ghz 3.83.8
boost clock ghz 4.84.6
tdp w 105105
l3 cache mb 3264
process nm 77
socket AMD Socket AM4AMD Socket AM4

Synthetic benchmarks

Each row says whether a higher or a lower number is better (ranks and times are lower-is-better). Scores come from CGDirector, GadgetVersus, NanoReview, TopCPU.net, PassMark Software and HWBOT; each row links its sources, and where they differ the cell shows their median. Empty cells mean we don't yet have that benchmark on file for the SKU.

BenchmarkRyzen 7 5800XTRyzen 9 3900X
Cinebench R23 multi (higher is better)
Source: CGDirector		 —18,682 points
Cinebench R23 single (higher is better)
Source: CGDirector		 —1,312 points
Geekbench 6 multi (higher is better)
Source: GadgetVersus, NanoReview, TopCPU.net		 9,519 points9,259 points
Geekbench 6 single (higher is better)
Source: GadgetVersus, NanoReview, TopCPU.net		 2,205 points1,682 points
PassMark CPU Mark (higher is better)
Source: PassMark Software		 28,041 points32,491 points
PassMark Single Thread (higher is better)
Source: PassMark Software		 3,534 points2,702 points
PassMark Single Thread Rating (higher is better)
Source: PassMark Software		 —2,702 points
PassMark Single-Thread (higher is better)
Source: PassMark Software		 3,534 points—
Y-cruncher Pi 1B (lower is better)
Source: HWBOT		 —89 seconds

Quick answers

Which is faster, the Ryzen 7 5800XT or the Ryzen 9 3900X?

The Ryzen 7 5800XT leads on 3 of 4 shared benchmarks (31% in Geekbench 6 single); the Ryzen 9 3900X takes 1 (16% in PassMark CPU Mark).

What did the Ryzen 7 5800XT and the Ryzen 9 3900X cost at launch?

The Ryzen 7 5800XT launched at a $249 MSRP and the Ryzen 9 3900X at $499. Street prices drift from launch pricing; the Where to buy section links current listings.

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