Core Ultra 7 255HX: CPU benchmarks and laptop guide

The Intel Core Ultra 7 255HX is Arrow Lake-HX's main muscle for 2025 gaming laptops — a 20-core desktop-class processor built on a 3 nm process. The catalog matches it to 26 models, and it meets the recommended CPU requirement in 58 of the 69 games the site tracks. This guide covers where the chip sits among laptop CPUs, what it brings to a portable, and which laptops carry it.

Where the Core Ultra 7 255HX sits in 2026

A catalog score of 70.4 places the chip 82nd of 741 scored laptop CPUs — the top ninth of a table that spans two decades of silicon. The neighborhood blends new flagships and surprise veterans: the Ryzen 9 9850HX (71.5), Ryzen 7 5800U (71.1) and Ryzen 9 8940HX (70.9) just above, the Ryzen 5 6600U (70.1), Ryzen 5 7535U (70) and Core i7-1165G7 (70) just below. Holding its own against current Ryzen 9 HX silicon is the honest read — upper-tier throughput with an Ultra 7 badge and an Ultra 7 price.

What the chip brings

Arrow Lake-HX is a 20-core, 20-thread design on a 3 nm-class process, rated at 55 W in its HX-class configuration: a 2.4 GHz base clock and up to 5.2 GHz boost, with no hyper-threading — the generation relies on raw core count and cache instead. The integrated Intel Arc Graphics 140T covers display duties on configs without discrete graphics. Memory support and cache details were not captured for this chip, so the table above sticks to what the catalog verifiably holds: a PassMark overall score of 48,541.

Games: CPU-side readiness

Measured purely as a processor, the chip clears the recommended CPU tier for 58 of 69 cataloged games — from Alan Wake 2, Black Myth Wukong, Returnal, Ghost of Tsushima and Counter-Strike 2 through Resident Evil 4 Remake, Forza Horizon 5 and the esports staples down to the lightest entries. The remaining 11 sit at the minimum tier rather than below it: Starfield, Helldivers 2, Cyberpunk 2077, Elden Ring, Baldur's Gate 3, Fortnite and their peers list the chip above their minimum but below their recommended CPU requirement. No tracked game asks for more than this. These verdicts are CPU-only — whether a game actually plays depends on the laptop's GPU and RAM, and on this roster both are usually strong.

Laptops that carry it

The 26-model roster is gaming hardware across 2025–2026: the Alienware 16X Aurora at $2,340 tops the list, MSI's Crosshair 16 HX AI, Raider 16 HX and HP's HyperX Omen 15 sit at $1,800, and a dense $1,440 tier covers the ASUS TUF Gaming F16, ROG Strix G16, ROG Strix SCAR 16, four Acer Predator Helios variants and the MSI Stealth 18 HX AI. Roster medians describe the fleet honestly: office comfort at a perfect 100, a gaming index of 94.5, engineering and modeling at 97, photo and design at 94 and a best-CPU score at the 100 ceiling — while mobility at 41 and portability at 20.5 say these are performance machines first and travelers second.

Bottom line

The Core Ultra 7 255HX suits a buyer who wants near-flagship processing in a current-generation gaming laptop: recommended-tier CPU readiness for 58 of 69 tracked games, minimum-tier or better for all of them, and a roster that pairs it with serious graphics from $1,440 to $2,340. The trade-off is the usual one — chassis size and weight — but for a desk-first machine that also compiles, renders or models, the roster's task-index medians sit near the top of the catalog. Judge individual value by the GPU in each listing; the CPU will not be the limiting factor.