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CPU Comparison: FPS, Specs & Value

Core i5-9400 vs Ryzen 9 9900X

The Core i5-9400 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 $153.54 cheaper!

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CPU

$198.95View CPUAll CPUs

CPU

$352.49View CPUAll CPUs

Up to 104% faster on average across 100+ games
Is 5 years and 11 months newer
Available for $352.49

FPS Comparison Across Popular Games

Predicted average FPS at 1080p, 1440p, and 4K, based on real game benchmarks.

Resolution

Quality

Paired GPU

View Compare All GPUs

Select GPU

League of Legends2009

Core i5-9400

217FPS

Ryzen 9 9900X

457FPS

Grand Theft Auto V2013

Core i5-9400

204FPS

Ryzen 9 9900X

227FPS

Overwatch 22023

520FPS

586FPS

533FPS

785FPS

Valorant2020

Core i5-9400

591FPS

Ryzen 9 9900X

843FPS

Apex Legends2019

Core i5-9400

365FPS

Ryzen 9 9900X

398FPS

World of Warcraft2004

Core i5-9400

203FPS

Ryzen 9 9900X

261FPS

Dota 22013

Core i5-9400

190FPS

Ryzen 9 9900X

336FPS

Specs & Benchmark Comparison

Side-by-side specs, synthetic benchmarks, and key hardware differences.

Scorehelp

Core i5-9400

29%

Ryzen 9 9900X

78%

Ryzen 9 9900X ranks 49 points higher.

Coreshelp

Core i5-9400

Ryzen 9 9900X

Ryzen 9 9900X has 6 more cores.

Threadshelp

Core i5-9400

Ryzen 9 9900X

Ryzen 9 9900X has 18 more threads.

L3 Cachehelp

Core i5-9400

9 MB

Ryzen 9 9900X

64 MB

Ryzen 9 9900X has 55 MB more L3 cache.

Base Frequencyhelp

Core i5-9400

2.9 GHz

Ryzen 9 9900X

4.4 GHz

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

Turbo Frequencyhelp

Core i5-9400

4.1 GHz

Ryzen 9 9900X

5.6 GHz

Ryzen 9 9900X boosts 37% higher.

TDPhelp

Core i5-9400

65W

Ryzen 9 9900X

120W

Core i5-9400 draws 55W less power.

Pricehelp

Core i5-9400

$198.95

Ryzen 9 9900X

$352.49

Core i5-9400 is $153.54 cheaper.

Core i5-9400Ryzen 9 9900X

LGA1151

Sockethelp

AM5

Coffee Lake

Codenamehelp

Granite Ridge

Desktop

Segmenthelp

Desktop

UHD 630

Integrated GPUhelp

Radeon Graphics

2666 MHz (DDR4)

RAMhelp

5600 MHz (DDR5)

Not Overclockable

Overclock Supporthelp

Overclockable

Frequently Asked Questions

compare_arrowsWhich is better, Core i5-9400 or Ryzen 9 9900X?expand_more

The Ryzen 9 9900X. It's 169% faster than the Core i5-9400 on average across 100+ games, scoring 78/100 vs 29/100 in our gaming rating.

speedHow much faster is Ryzen 9 9900X than Core i5-9400?expand_more

169% 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 i5-9400 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 i5-9400 and Ryzen 9 9900X?expand_more

Performance: Core i5-9400 scores 29/100, 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 i5-9400 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 i5-9400 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.