Core i9-13900KS vs Core i9-13900K

CPU Head-to-Head · FPS & Value Comparison

Core i9-13900KS vs Core i9-13900K: Gaming Performance Comparison in 1080p Ultra

In gaming, the Core i9-13900KS delivers approximately +1% higher frame rates compared to the Core i9-13900K in 1080p Ultra. For budget-conscious buyers, the Core i9-13900K currently offers +87.5% better value, available at a $290 price difference.

Core i9-13900KS Advantages

Up to 1% faster in gaming benchmarks on average – 202 vs 200 FPS

Is newer – 2023-01-12 vs 2022-10-20

Core i9-13900K Advantages

Up to 87.5% better value for money – $1.63 vs $3.05/FPS

Costs only 53% of the price – $325 vs $615 (47% cheaper)

Consumes up to 17% less energy – 125W vs 150W

Performance Analytics

Average FPS across 21 games · all benchmarks use the same test suite

1080p Low

Full HD — min settings

AVG FPS
Core i9-13900KS
202fps(100%)
Core i9-13900K
200fps(99%)
WinnerCore i9-13900KS
+1% faster
General Explanation of Benchmark Percentages

When you see two FPS numbers, there are two common but different ways to show the difference:

"X% of the performance"

This compares the slower card to the faster card.

Formula: (Core i9-13900K FPS ÷ Core i9-13900KS FPS) × 100
Example: (200 ÷ 202) × 100 = 99%
"X% faster"

This shows how much more the faster card performs compared to the slower one.

Formula: ((Core i9-13900KS FPS - Core i9-13900K FPS) ÷ Core i9-13900K FPS) × 100
Example: ((202 - 200) ÷ 200) × 100 = 1%
Why Someone Might Get Confused:

You naturally think: "If Core i9-13900K is only 99% as fast, then Core i9-13900KS should be 1% faster" — but that's incorrect.

The "1% faster" is measured against the slower card, not against the faster one. So both numbers (99% of and 1% faster) are mathematically correct at the same time.

Efficiency Coefficient 1080p Ultra (Higher = Better Value)

Performance delivered per currency unit: FPS/$

Core i9-13900KS
0.328 Value53% Efficiency
Core i9-13900K
0.615 Value100% Efficiency