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CPU Comparison: FPS, Specs & Value

Ryzen 9 3900X vs Core i5-11600K

The Ryzen 9 3900X is slower than the Core i5-11600K on average across 100+ games. We cannot compare value as at least one CPU is out of stock.

  • Up to 90% more expensive$499 vs $199.00
  • Up to 22% faster on average across 100+ games
  • Is 1 year and 9 months newer
  • Up to 90% cheaper$199.00 vs $499
  • Up to 133% better value for money

FPS Comparison Across Popular Games

Specs & Benchmark Comparison

Scorehelp

Core i5-11600K ranks 12 points higher.

Coreshelp

Ryzen 9 3900X has 6 more cores.

Threadshelp

Ryzen 9 3900X has 12 more threads.

L3 Cachehelp

Ryzen 9 3900X has 52 MB more L3 cache.

Base Frequencyhelp

Core i5-11600K has a 3% higher base clock.

Turbo Frequencyhelp

Core i5-11600K boosts 7% higher.

TDPhelp

Ryzen 9 3900X draws 20W less power.

AM4
Sockethelp
LGA1200
Matisse
Codenamehelp
Rocket Lake
Desktop
Segmenthelp
Desktop
No Integrated Graphics
Integrated GPUhelp
UHD Graphics 750
3200 MHz (DDR4)
RAMhelp
3200 MHz (DDR4)
Overclockable
Overclock Supporthelp
Overclockable

Frequently Asked Questions

compare_arrowsWhich is better, Ryzen 9 3900X or Core i5-11600K?expand_more
The Core i5-11600K. It's 31% faster than the Ryzen 9 3900X on average across 100+ games, scoring 51/100 vs 39/100 in our gaming rating.
speedHow much faster is Core i5-11600K than Ryzen 9 3900X?expand_more
31% 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, Ryzen 9 3900X or Core i5-11600K?expand_more
The Core i5-11600K is faster at both resolutions. Toggle the resolution selector above to see per-game FPS.
paidIs the Core i5-11600K worth buying in 2026?expand_more
It scores 51/100 in our gaming rating, faster than most CPUs on the market. Good buy if the price is right.
differenceWhat is the difference between Ryzen 9 3900X and Core i5-11600K?expand_more
Performance: Ryzen 9 3900X scores 39/100, Core i5-11600K scores 51/100. They also differ in core count, clock speeds, L3 cache, and power draw. Full breakdown in the specs section above.
compressWill the Ryzen 9 3900X or Core i5-11600K 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 Ryzen 9 3900X or Core i5-11600K?expand_more
The Core i5-11600K is the stronger pick at 51/100. Compare your current CPU against it to see the exact FPS gain across 100+ games.

Popular Comparisons

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