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AMD Ryzen 5 7430U vs Ryzen 9 3900X — Specs & Performance Compared

Verdict: The AMD Ryzen 5 7430U leads on 3 of 6 shared benchmarks (11% in Geekbench 6 single); the Ryzen 9 3900X takes 3 (147% in Cinebench R23 multi).

Side-by-side CPU comparison of the AMD Ryzen 5 7430U and the Ryzen 9 3900X. Released 2023 (AMD Ryzen 5 7430U), 2019 (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

SpecAMD Ryzen 5 7430URyzen 9 3900X
cores 612
threads 1224
base clock ghz 2.33.8
boost clock ghz 4.34.6
tdp w 15105
l2 cache mb 3—
l3 cache mb 1664
process nm 77
socket FP6AMD 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 Notebookcheck, Laptophia, CGDirector, TopCPU, NanoReview, Geekbench Browser, Technical.city, CpuTronic and PassMark; 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.

BenchmarkAMD Ryzen 5 7430URyzen 9 3900X
7-Zip 18.03 multi (MIPS) (higher is better)
Source: Notebookcheck		 35,812 MIPS—
Blender 3.3 Classroom CPU (seconds, lower is better) (higher is better)
Source: Notebookcheck		 788—
Cinebench 2024 multi (higher is better)
Source: Laptophia, Notebookcheck		 400 points—
Cinebench 2024 single (higher is better)
Source: Laptophia, Notebookcheck		 79 points—
Cinebench R20 multi (higher is better)
Source: Notebookcheck		 2,827 points—
Cinebench R20 single (higher is better)
Source: Notebookcheck		 507 points—
Cinebench R23 multi (higher is better)
Source: CGDirector, TopCPU, Notebookcheck, Laptophia		 7,572 points18,682 points
Cinebench R23 single (higher is better)
Source: CGDirector, TopCPU, Notebookcheck, Laptophia		 1,314 points1,312 points
Geekbench 6 multi (higher is better)
Source: TopCPU, NanoReview, Geekbench Browser, Technical.city, Laptophia, CpuTronic, Notebookcheck		 6,553 points9,259 points
Geekbench 6 single (higher is better)
Source: TopCPU, NanoReview, Geekbench Browser, Technical.city, Laptophia, CpuTronic, Notebookcheck		 1,864 points1,682 points
PassMark CPU Mark (higher is better)
Source: PassMark		 15,449 pts32,491 points
PassMark CPU Mark single thread (higher is better)
Source: PassMark		 2,899 points—

Quick answers

Which is faster, the AMD Ryzen 5 7430U or the Ryzen 9 3900X?

The AMD Ryzen 5 7430U leads on 3 of 6 shared benchmarks (11% in Geekbench 6 single); the Ryzen 9 3900X takes 3 (147% in Cinebench R23 multi).

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