Core i5-6600 vs Core Ultra X9 378H
The Core i5-6600 is quite a bit slower than the Core Ultra X9 378H on average across 100+ games. We cannot compare value as at least one CPU is out of stock.
FPS Comparison Across Popular Games
Predicted average FPS at 1080p, 1440p, and 4K, based on real game benchmarks.
Specs & Benchmark Comparison
Side-by-side specs, synthetic benchmarks, and key hardware differences.
Base Frequencyhelp
Core i5-6600 has a 65% higher base clock.
LGA1151
Sockethelp
Intel BGA 2540Skylake
Codenamehelp
Panther LakeDesktop
Segmenthelp
MobileUHD Graphics 530
Integrated GPUhelp
Arc B3902133 MHz (DDR3), 2133 MHz (DDR4)
RAMhelp
9600 MHz (LPDDR5X)Not Overclockable
Overclock Supporthelp
Not OverclockableFrequently Asked Questions
compare_arrowsWhich is better, Core i5-6600 or Core Ultra X9 378H?expand_more
The Core Ultra X9 378H. It's 90% faster than the Core i5-6600 on average across 100+ games, scoring 59/100 vs 31/100 in our gaming rating.
speedHow much faster is Core Ultra X9 378H than Core i5-6600?expand_more
90% 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 i5-6600 or Core Ultra X9 378H?expand_more
The Core Ultra X9 378H is faster at both resolutions. Toggle the resolution selector above to see per-game FPS.
paidIs the Core Ultra X9 378H worth buying in 2026?expand_more
It scores 59/100 in our gaming rating, faster than most CPUs on the market. Good buy if the price is right.
differenceWhat is the difference between Core i5-6600 and Core Ultra X9 378H?expand_more
Performance: Core i5-6600 scores 31/100, Core Ultra X9 378H scores 59/100. They also differ in core count, clock speeds, L3 cache, and power draw. Full breakdown in the specs section above.
compressWill the Core i5-6600 or Core Ultra X9 378H 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 i5-6600 or Core Ultra X9 378H?expand_more
The Core Ultra X9 378H is the stronger pick at 59/100. Compare your current CPU against it to see the exact FPS gain across 100+ games.
Popular Comparisons
i5-6600 vs Ryzen 7 7800X3Di5-6600 vs Ryzen 5 7600Xi5-6600 vs Ryzen 9 9950X3Di5-6600 vs Ryzen 7 7700Xi5-6600 vs Ryzen 9 9900Xi5-6600 vs Ryzen 7 9850X3Di5-6600 vs Ryzen 7 9700Xi5-6600 vs Ryzen 5 8500Gi5-6600 vs Ultra 7 265KFi5-6600 vs Ryzen 9 9900X3Di3-12100F vs i5-6600i5-6600 vs Ryzen 5 7500X3Di5-6600 vs Ryzen 7 9800X3Di5-4670 vs i5-6600i5-6600 vs Ryzen 5 3500Xi5-6600 vs Ryzen 5 5500i5-6600 vs Ultra 5 245Ki5-6600 vs Ultra 5 245KFi5-6600 vs Ryzen 5 5600i5-6600 vs Ryzen 3 4100i5-4590S vs i5-6600Ultra X9 378H vs Ryzen 7 7800X3DUltra X9 378H vs Ryzen 5 7600XUltra X9 378H vs Ryzen 9 9950X3DUltra X9 378H vs Ryzen 7 7700XUltra X9 378H vs Ryzen 9 9900XUltra X9 378H vs Ryzen 7 9850X3DUltra X9 378H vs Ryzen 7 9700XUltra X9 378H vs Ryzen 5 8500GUltra 7 265KF vs Ultra X9 378HUltra X9 378H vs Ryzen 9 9900X3Di3-12100F vs Ultra X9 378HUltra X9 378H vs Ryzen 5 7500X3DUltra X9 378H vs Ryzen 7 9800X3Di5-4670 vs Ultra X9 378HUltra X9 378H vs Ryzen 5 3500XUltra X9 378H vs Ryzen 5 5500Ultra 5 245K vs Ultra X9 378HUltra 5 245KF vs Ultra X9 378HUltra X9 378H vs Ryzen 5 5600Ultra X9 378H vs Ryzen 3 4100i5-4590S vs Ultra X9 378H