Core Ultra 7 255U vs Pentium E5400
The Core Ultra 7 255U is slightly slower than the Pentium E5400 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
Pentium E5400 has a 35% higher base clock.
FCBGA2049
Sockethelp
LGA775Arrow Lake-U
Codenamehelp
WolfdaleMobile
Segmenthelp
DesktopIntel Graphics
Integrated GPUhelp
On certain motherboards (Chipset feature)6400 MHz (DDR5), 8400 MHz (LPDDR5X)
RAMhelp
DDR1, DDR2, DDR3Not Overclockable
Overclock Supporthelp
Not OverclockableFrequently Asked Questions
compare_arrowsWhich is better, Core Ultra 7 255U or Pentium E5400?expand_more
The Pentium E5400. It's 229% faster than the Core Ultra 7 255U on average across 100+ games, scoring 46/100 vs 14/100 in our gaming rating.
speedHow much faster is Pentium E5400 than Core Ultra 7 255U?expand_more
229% 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 Ultra 7 255U or Pentium E5400?expand_more
The Pentium E5400 is faster at both resolutions. Toggle the resolution selector above to see per-game FPS.
paidIs the Pentium E5400 worth buying in 2026?expand_more
It scores 46/100 in our gaming rating, faster than most CPUs on the market. Good buy if the price is right.
differenceWhat is the difference between Core Ultra 7 255U and Pentium E5400?expand_more
Performance: Core Ultra 7 255U scores 14/100, Pentium E5400 scores 46/100. They also differ in core count, clock speeds, L3 cache, and power draw. Full breakdown in the specs section above.
compressWill the Core Ultra 7 255U or Pentium E5400 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 Ultra 7 255U or Pentium E5400?expand_more
The Pentium E5400 is the stronger pick at 46/100. Compare your current CPU against it to see the exact FPS gain across 100+ games.
Popular Comparisons
Ultra 7 255U vs Ryzen 7 7800X3DUltra 7 255U vs Ryzen 9 9950X3DUltra 7 255U vs Ryzen 7 7700XUltra 7 255U vs Ryzen 9 9900XUltra 7 255U vs Ryzen 7 9850X3DUltra 7 255U vs Ryzen 7 9700XUltra 7 255U vs Ryzen 5 8500GUltra 7 255U vs Ultra 7 265KFUltra 7 255U vs Ryzen 9 9900X3Di3-12100F vs Ultra 7 255UUltra 7 255U vs Ryzen 5 7500FUltra 7 255U vs Ryzen 5 7500X3DCeleron G1610 vs Ultra 7 255UAthlon II X2 240 vs Ultra 7 255UUltra 7 255U vs Ryzen 7 9800X3DUltra 5 245K vs Ultra 7 255UUltra 5 245KF vs Ultra 7 255UPentium E5400 vs Ryzen 7 7800X3DPentium E5400 vs Ryzen 9 9950X3DPentium E5400 vs Ryzen 7 7700XPentium E5400 vs Ryzen 9 9900XPentium E5400 vs Ryzen 7 9850X3DPentium E5400 vs Ryzen 7 9700XPentium E5400 vs Ryzen 5 8500GUltra 7 265KF vs Pentium E5400Pentium E5400 vs Ryzen 9 9900X3Di3-12100F vs Pentium E5400Pentium E5400 vs Ryzen 5 7500FPentium E5400 vs Ryzen 5 7500X3DCeleron G1610 vs Pentium E5400Athlon II X2 240 vs Pentium E5400Pentium E5400 vs Ryzen 7 9800X3DUltra 5 245K vs Pentium E5400Ultra 5 245KF vs Pentium E5400