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CPU Comparison: FPS, Specs & Value

Core i5-9400 vs Ryzen 7 7800X3D

The Core i5-9400 is much slower than the Ryzen 7 7800X3D on average across 100+ games and it's also a slightly worse value for money, as it's only $175.54 cheaper!

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CPU

$198.95View CPUAll CPUs

CPU

$374.49View CPUAll CPUs

Up to 113% faster on average across 100+ games
Is 4 years and 3 months newer
Available for $374.49

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

216FPS

478FPS

533FPS

804FPS

Overwatch 22023

Core i5-9400

520FPS

Ryzen 7 7800X3D

592FPS

Dota 22013

Core i5-9400

190FPS

Ryzen 7 7800X3D

353FPS

Grand Theft Auto V2013

Core i5-9400

204FPS

Ryzen 7 7800X3D

228FPS

Valorant2020

Core i5-9400

591FPS

Ryzen 7 7800X3D

868FPS

Escape From Tarkov2017

Core i5-9400

220FPS

Ryzen 7 7800X3D

279FPS

World of Warcraft2004

Core i5-9400

203FPS

Ryzen 7 7800X3D

265FPS

Specs & Benchmark Comparison

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

Scorehelp

Core i5-9400

29%

Ryzen 7 7800X3D

82%

Ryzen 7 7800X3D ranks 53 points higher.

Coreshelp

Core i5-9400

Ryzen 7 7800X3D

Ryzen 7 7800X3D has 2 more cores.

Threadshelp

Core i5-9400

Ryzen 7 7800X3D

Ryzen 7 7800X3D has 10 more threads.

L3 Cachehelp

Core i5-9400

9 MB

Ryzen 7 7800X3D

96 MB

Ryzen 7 7800X3D has 87 MB more L3 cache.

Base Frequencyhelp

Core i5-9400

2.9 GHz

Ryzen 7 7800X3D

4.2 GHz

Ryzen 7 7800X3D has a 45% higher base clock.

Turbo Frequencyhelp

Core i5-9400

4.1 GHz

Ryzen 7 7800X3D

5 GHz

Ryzen 7 7800X3D boosts 22% higher.

TDPhelp

Core i5-9400

65W

Ryzen 7 7800X3D

120W

Core i5-9400 draws 55W less power.

Pricehelp

Core i5-9400

$198.95

Ryzen 7 7800X3D

$374.49

Core i5-9400 is $175.54 cheaper.

Core i5-9400Ryzen 7 7800X3D

LGA1151

Sockethelp

AM5

Coffee Lake

Codenamehelp

Raphael

Desktop

Segmenthelp

Desktop

UHD 630

Integrated GPUhelp

Radeon Graphics

2666 MHz (DDR4)

RAMhelp

5200 MHz (DDR5)

Not Overclockable

Overclock Supporthelp

Not Overclockable

Frequently Asked Questions

compare_arrowsWhich is better, Core i5-9400 or Ryzen 7 7800X3D?expand_more

The Ryzen 7 7800X3D. It's 183% faster than the Core i5-9400 on average across 100+ games, scoring 82/100 vs 29/100 in our gaming rating.

speedHow much faster is Ryzen 7 7800X3D than Core i5-9400?expand_more

183% 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 7 7800X3D?expand_more

The Ryzen 7 7800X3D is faster at both resolutions. Toggle the resolution selector above to see per-game FPS.

paidIs the Ryzen 7 7800X3D worth buying in 2026?expand_more

It scores 82/100 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 7 7800X3D?expand_more

Performance: Core i5-9400 scores 29/100, Ryzen 7 7800X3D scores 82/100. 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 7 7800X3D 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 7 7800X3D?expand_more

The Ryzen 7 7800X3D is the stronger pick at 82/100. Compare your current CPU against it to see the exact FPS gain across 100+ games.