Core Ultra 7 255H: CPU benchmarks and laptop guide

The Intel Core Ultra 7 255H is the Arrow Lake-H mainstream flagship, and at 87 matched models it is the second most represented CPU in the catalog. A 16-core design on a 3 nm-class process, it is the first chip in this tier the catalog scores above the recommended CPU requirement of every one of the 69 games it tracks. This guide covers where it sits among laptop CPUs, what it brings, and which laptops carry it.

Where the Core Ultra 7 255H sits in 2026

A catalog score of 91.4 places the chip 15th of 672 scored laptop CPUs — the top two percent. The neighborhood is flagship territory on both sides: the Ryzen 9 7845HX (93.4), Ryzen AI 9 HX 370 (92.4) and Ryzen 7 7745HX (91.5) above, the Ryzen AI 9 365 (90), Core i7-14700HX (89.8) and Ryzen 5 7645HX (88.2) below. Outranking HX-class desktop-replacement silicon from a 28 W envelope is the defining fact: the 255H delivers gaming-laptop processor grunt in a thin-and-light body.

What the chip brings

Arrow Lake-H pairs 16 cores with 16 threads on a 3 nm-class process, rated at 28 W in its H-class configuration: a 2 GHz base with up to 5.1 GHz boost on the performance cores. The integrated Arc Graphics 140T tile clocks to 2,250 MHz — enough for the display workload while discrete GPUs do the heavy lifting. GeekBench clocks the chip at 2,487 single-core and 13,219 multi-core — figures that bracket it with dedicated gaming flagships while drawing a fraction of their power.

Games: CPU-side readiness

As a processor, the chip clears the recommended CPU tier for all 69 cataloged games — Starfield, Helldivers 2, Baldur's Gate 3, Cyberpunk 2077, Elden Ring and Hogwarts Legacy included, the titles that most laptops still stagger on. There is no game in the catalog whose CPU requirement this chip fails to meet at the recommended level. The honest caveat: these verdicts measure the processor only — the actual experience depends on the laptop's GPU and RAM, and the roster spans both integrated-only ultrabooks and RTX-class gaming machines.

Laptops that carry it

The 87-model roster splits cleanly between gaming muscle and premium business. On the gaming side: MSI's Crosshair 16 HX AI and Raider 16 HX at $1,800, the Alienware 16X Aurora at $2,340, OMEN 16 Slim at $1,665 and ASUS TUF Gaming F16 at $1,440. On the portable side: ThinkPad T16 Gen 4 at $1,284, the ExpertBook B3/B5 line at $1,144, the Zenbook 14 OLED at $1,232 and the Vivobook S16 at $765. Roster medians read like a flagship spec sheet — best-CPU score 97.3, best-GPU 69.6, gaming index 89, modeling and CAD indices both 94, office comfort a perfect 100 — with mobility at 54, the price of all that performance.

Bottom line

The Core Ultra 7 255H is the processor a buyer picks once: top-two-percent rank, recommended-tier clearance for the entire game catalog, and a roster that runs from $765 vivobooks to $2,340 Alienware flagships, so the same silicon fits a spreadsheet machine and a gaming rig. The trade-off is portability — the fleet skews heavy. Buyers weighing the step down will find the catalog's compare pages against the Ultra 7 155H, Ultra 9 185H and the 258V LZ variants price each notch precisely.