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CPU Comparison: FPS, Specs & Value

Celeron 3865U vs Ryzen 9 9900X

The Celeron 3865U is much slower than the Ryzen 9 9900X on average across 100+ games. We cannot compare value as at least one CPU is out of stock.

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CPU

View All CPUs

Up to 366% cheaper – $107 vs $352.49
Up to 2% better value for money

CPU

$352.49View CPUAll CPUs

Up to 356% faster on average across 100+ games
Is 7 years and 9 months newer
Up to 366% more expensive – $352.49 vs $107

FPS Comparison Across Popular Games

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

Resolution

Quality

Paired GPU

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League of Legends2009

Celeron 3865U

112FPS

Ryzen 9 9900X

457FPS

Grand Theft Auto V2013

Celeron 3865U

182FPS

Ryzen 9 9900X

227FPS

Valorant2020

Celeron 3865U

538FPS

Ryzen 9 9900X

843FPS

Fortnite2017

Celeron 3865U

332FPS

Ryzen 9 9900X

310FPS

Minecraft2011

Celeron 3865U

577FPS

Ryzen 9 9900X

883FPS

Overwatch 22023

530FPS

586FPS

337FPS

786FPS

Dota 22013

Celeron 3865U

169FPS

Ryzen 9 9900X

336FPS

Specs & Benchmark Comparison

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

Scorehelp

Celeron 3865U

Ryzen 9 9900X

77%

Ryzen 9 9900X ranks 72 points higher.

Coreshelp

Celeron 3865U

Ryzen 9 9900X

Ryzen 9 9900X has 10 more cores.

Threadshelp

Celeron 3865U

Ryzen 9 9900X

Ryzen 9 9900X has 22 more threads.

L3 Cachehelp

Celeron 3865U

2 MB

Ryzen 9 9900X

64 MB

Ryzen 9 9900X has 62 MB more L3 cache.

Base Frequencyhelp

Celeron 3865U

1.8 GHz

Ryzen 9 9900X

4.4 GHz

Ryzen 9 9900X has a 144% higher base clock.

Turbo Frequencyhelp

Celeron 3865U

Ryzen 9 9900X

5.6 GHz

TDPhelp

Celeron 3865U

15W

Ryzen 9 9900X

120W

Celeron 3865U draws 105W less power.

Pricehelp

Celeron 3865U

Ryzen 9 9900X

$352.49

Celeron 3865URyzen 9 9900X

Intel BGA 1356

Sockethelp

AM5

Kaby Lake-U

Codenamehelp

Granite Ridge

Mobile

Segmenthelp

Desktop

Intel HD Graphics 610

Integrated GPUhelp

Radeon Graphics

DDR3, 2133 MHz (DDR4)

RAMhelp

5600 MHz (DDR5)

Not Overclockable

Overclock Supporthelp

Overclockable

Frequently Asked Questions

compare_arrowsWhich is better, Celeron 3865U or Ryzen 9 9900X?expand_more

The Ryzen 9 9900X. It's 1440% faster than the Celeron 3865U on average across 100+ games, scoring 77/100 vs 5/100 in our gaming rating.

speedHow much faster is Ryzen 9 9900X than Celeron 3865U?expand_more

1440% 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, Celeron 3865U 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 77/100 in our gaming rating, faster than most CPUs on the market. Good buy if the price is right.

differenceWhat is the difference between Celeron 3865U and Ryzen 9 9900X?expand_more

Performance: Celeron 3865U scores 5/100, Ryzen 9 9900X scores 77/100. They also differ in core count, clock speeds, L3 cache, and power draw. Full breakdown in the specs section above.

compressWill the Celeron 3865U 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 Celeron 3865U or Ryzen 9 9900X?expand_more

The Ryzen 9 9900X is the stronger pick at 77/100. Compare your current CPU against it to see the exact FPS gain across 100+ games.