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CPU Comparison: FPS, Specs & Value

Core i5-9400F vs Ryzen 9 9900X

The Core i5-9400F is much slower than the Ryzen 9 9900X on average across 100+ games and it's also a slightly worse value for money, as it's only $157.10 cheaper!

  • Up to 103% faster on average across 100+ games
  • Is 5 years and 8 months newer
  • Available for $353.09

FPS Comparison Across Popular Games

Specs & Benchmark Comparison

Scorehelp

Ryzen 9 9900X ranks 48 points higher.

Coreshelp

Ryzen 9 9900X has 6 more cores.

Threadshelp

Ryzen 9 9900X has 18 more threads.

L3 Cachehelp

Ryzen 9 9900X has 55 MB more L3 cache.

Base Frequencyhelp

Ryzen 9 9900X has a 52% higher base clock.

Turbo Frequencyhelp

Ryzen 9 9900X boosts 37% higher.

TDPhelp

Core i5-9400F draws 55W less power.

Pricehelp

Core i5-9400F is $157.10 cheaper.

LGA1151
Sockethelp
AM5
Coffee Lake
Codenamehelp
Granite Ridge
Desktop
Segmenthelp
Desktop
No Integrated Graphics
Integrated GPUhelp
Radeon Graphics
2666 MHz (DDR4)
RAMhelp
5600 MHz (DDR5)
Not Overclockable
Overclock Supporthelp
Overclockable

Frequently Asked Questions

compare_arrowsWhich is better, Core i5-9400F or Ryzen 9 9900X?expand_more
The Ryzen 9 9900X. It's 160% faster than the Core i5-9400F on average across 100+ games, scoring 78/100 vs 30/100 in our gaming rating.
speedHow much faster is Ryzen 9 9900X than Core i5-9400F?expand_more
160% faster on average. The gap varies by game and resolution, check the per-game FPS comparison above.
aspect_ratioWhich is better for 1440p and 4K gaming, Core i5-9400F or Ryzen 9 9900X?expand_more
The Ryzen 9 9900X is faster at both resolutions. Toggle the resolution selector above to see per-game FPS.
paidIs the Ryzen 9 9900X worth buying in 2026?expand_more
It scores 78/100 in our gaming rating, faster than most CPUs on the market. Good buy if the price is right.
differenceWhat is the difference between Core i5-9400F and Ryzen 9 9900X?expand_more
Performance: Core i5-9400F scores 30/100, Ryzen 9 9900X scores 78/100. They also differ in core count, clock speeds, L3 cache, and power draw. Full breakdown in the specs section above.
compressWill the Core i5-9400F or Ryzen 9 9900X bottleneck my PC?expand_more
Depends on the rest of your build, especially your GPU. Swap the paired GPU in the FPS section above to see if it limits performance, or use our bottleneck calculator for a full analysis.
upgradeIs it worth upgrading to the Core i5-9400F or Ryzen 9 9900X?expand_more
The Ryzen 9 9900X is the stronger pick at 78/100. Compare your current CPU against it to see the exact FPS gain across 100+ games.

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