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Ryzen 7 9700X vs Ryzen 9 3900X

Full specification comparison between the AMD Ryzen 7 9700X (2024) and the AMD Ryzen 9 3900X (2019).

Winner

Ryzen 7 9700X

AMD Enthusiast

87 / perf index
  • ~50% faster on average
  • Higher boost clock (5.5 vs 4.6 GHz)
  • Has integrated graphics
  • Lower power draw (65 W vs 105 W)
  • Cheaper at launch ($359 vs $499)

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Ryzen 9 3900X

AMD Entry-level

58 / perf index
  • More cores (12 vs 8)
  • Larger L3 cache (64 MB vs 32 MB)

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Verdict: The Ryzen 7 9700X is roughly 50% faster than the Ryzen 9 3900X on average — a clear, noticeable performance advantage.

Note they use different platforms (AM5 vs AM4), so this is a motherboard decision too, not just a CPU swap.

At launch pricing, the Ryzen 7 9700X offers more performance per dollar, and the Ryzen 7 9700X is the more power-efficient chip.

Estimated performance

Ryzen 7 9700X
87
Ryzen 9 3900X
58

Estimated average 1080p gaming performance compiled from publicly available benchmark data. Individual games vary.

Specs side by side

SpecificationRyzen 7 9700XRyzen 9 3900X
FamilyZen 5Zen 2
SocketAM5AM4
Release year20242019
Est. gaming perf.
87
58
Est. multi-core perf.
51
43
Est. single-core perf.
91
57
Cores
8
12
Threads
16
24
Max boost clock
5.5 GHz
4.6 GHz
L3 cache
32 MB
64 MB
TDP (base)
65 W
105 W
Integrated graphicsRadeon GraphicsNone
Launch MSRP
$359
$499

Green bars mark the better value in each row (for power and price, lower wins).

Frequently asked questions

Is the Ryzen 7 9700X better than the Ryzen 9 3900X?

Yes — based on aggregated benchmark data, the Ryzen 7 9700X is about 50% faster than the Ryzen 9 3900X on average.

How much faster is the Ryzen 7 9700X than the Ryzen 9 3900X?

Roughly 50% on average in gaming workloads. The gap varies by title, resolution and settings.

Which processor is better value?

Comparing launch prices, the Ryzen 7 9700X delivers more performance per dollar. Check current street prices, as market pricing often shifts the value equation.

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