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CPU Comparison: FPS, Specs & Value

Core i5-14400F vs Core i9-9940X

The Core i5-14400F is quite a bit faster than the Core i9-9940X on average across 100+ games and it's also a much better value for money, as it's $1,095.88 cheaper!

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CPU

$193.00View CPUAll CPUs

Up to 47% faster on average across 100+ games
Is 5 years and 4 months newer
Up to 608% cheaper – $193.00 vs $1,288.88
Up to 939% better value for money

CPU

$1,288.88View CPUAll CPUs

Up to 608% more expensive – $1,288.88 vs $193.00

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

Valorant2020

710FPS

607FPS

676FPS

559FPS

Grand Theft Auto V2013

Core i5-14400F

218FPS

Core i9-9940X

207FPS

League of Legends2009

Core i5-14400F

339FPS

Core i9-9940X

235FPS

Rust2018

Core i5-14400F

334FPS

Core i9-9940X

300FPS

Overwatch 22023

Core i5-14400F

551FPS

Core i9-9940X

524FPS

Dota 22013

Core i5-14400F

252FPS

Core i9-9940X

197FPS

Apex Legends2019

Core i5-14400F

378FPS

Core i9-9940X

366FPS

Specs & Benchmark Comparison

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

Scorehelp

Core i5-14400F

54%

Core i9-9940X

31%

Core i5-14400F ranks 23 points higher.

Coreshelp

Core i5-14400F

Core i9-9940X

Core i9-9940X has 4 more cores.

Threadshelp

Core i5-14400F

Core i9-9940X

Core i9-9940X has 12 more threads.

L3 Cachehelp

Core i5-14400F

20 MB

Core i9-9940X

19.25 MB

Core i5-14400F has 0.75 MB more L3 cache.

Base Frequencyhelp

Core i5-14400F

2.5 GHz

Core i9-9940X

3.3 GHz

Core i9-9940X has a 32% higher base clock.

Turbo Frequencyhelp

Core i5-14400F

4.7 GHz

Core i9-9940X

4.5 GHz

Core i5-14400F boosts 4% higher.

TDPhelp

Core i5-14400F

65W

Core i9-9940X

165W

Core i5-14400F draws 100W less power.

Pricehelp

Core i5-14400F

$193.00

Core i9-9940X

$1,288.88

Core i5-14400F is $1,095.88 cheaper.

Core i5-14400FCore i9-9940X

LGA1700

Sockethelp

LGA2066

Raptor Lake-R

Codenamehelp

Skylake-X

Desktop

Segmenthelp

Desktop

No Integrated Graphics

Integrated GPUhelp

No Integrated Graphics

3200 MHz (DDR4), 4800 MHz (DDR5)

RAMhelp

2666 MHz (DDR4)

Not Overclockable

Overclock Supporthelp

Overclockable

Frequently Asked Questions

compare_arrowsWhich is better, Core i5-14400F or Core i9-9940X?expand_more

The Core i5-14400F. It's 70% faster than the Core i9-9940X on average across 100+ games, scoring 56/100 vs 33/100 in our gaming rating.

speedHow much faster is Core i5-14400F than Core i9-9940X?expand_more

70% 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 i5-14400F or Core i9-9940X?expand_more

The Core i5-14400F is faster at both resolutions. Toggle the resolution selector above to see per-game FPS.

paidIs the Core i5-14400F worth buying in 2026?expand_more

It scores 56/100 in our gaming rating, faster than most CPUs on the market. Good buy if the price is right.

differenceWhat is the difference between Core i5-14400F and Core i9-9940X?expand_more

Performance: Core i5-14400F scores 56/100, Core i9-9940X scores 33/100. They also differ in core count, clock speeds, L3 cache, and power draw. Full breakdown in the specs section above.

compressWill the Core i5-14400F or Core i9-9940X 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 i5-14400F or Core i9-9940X?expand_more

The Core i5-14400F is the stronger pick at 56/100. Compare your current CPU against it to see the exact FPS gain across 100+ games.