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Ryzen 7 2700X vs Ryzen 9 3900X — Specs & Performance Compared

Verdict: The Ryzen 9 3900X is ahead of the Ryzen 7 2700X on all 6 shared benchmarks on file, by 12% to 86%, including 74% in Cinebench R23 multi (18,682 vs 10,715).

Side-by-side CPU comparison of the Ryzen 7 2700X and the Ryzen 9 3900X. 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 2700XRyzen 9 3900X
cores 812
threads 1624
base clock ghz 3.73.8
boost clock ghz —4.6
tdp w 105105
l3 cache mb —64
process nm —7
socket —AMD 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 Gamers Nexus, GadgetVersus, CGDirector, Geekbench Browser, NanoReview, PassMark Software, numberworld.org 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 2700XRyzen 9 3900X
7-Zip Decompression (higher is better)
Source: Gamers Nexus		 89,000 MIPS—
Cinebench R23 multi (higher is better)
Source: GadgetVersus, CGDirector		 10,715 points18,682 points
Cinebench R23 single (higher is better)
Source: GadgetVersus, CGDirector		 1,110 points1,312 points
Geekbench 6 multi (higher is better)
Source: Geekbench Browser, GadgetVersus, NanoReview		 6,487 points9,259 points
Geekbench 6 single (higher is better)
Source: Geekbench Browser, GadgetVersus, NanoReview		 1,269 points1,682 points
PassMark CPU Mark (higher is better)
Source: PassMark Software		 17,434 points32,491 points
PassMark Single Thread (higher is better)
Source: PassMark Software		 —2,702 points
PassMark Single Thread Rating (higher is better)
Source: PassMark Software		 2,413 points2,702 points
Y-cruncher 1B (lower is better)
Source: numberworld.org		 78—
Y-cruncher Pi 1B (lower is better)
Source: HWBOT		 —89 seconds

Quick answers

Which is faster, the Ryzen 7 2700X or the Ryzen 9 3900X?

The Ryzen 9 3900X is ahead of the Ryzen 7 2700X on all 6 shared benchmarks on file, by 12% to 86%, including 74% in Cinebench R23 multi (18,682 vs 10,715).

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