Intel

Intel Core Ultra 7 255HX

Expert rating8.8 / 10

Brand:: Intel
Form Factor:: Laptop
CPU Socket:: BGA 2114 (BGA, soldered)
Core/Thread Count:: 20C/20T
TDP:: 55W
iGPU:: Intel Graphics (Xe-LPG, reduced EU count)
CPU Series:: Core Ultra

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Manufacturer: Intel Last updated: 2026-10-10

Intel Core Ultra 7 255HX Review

Intel Core Ultra 7 255HX 20-core 20-thread laptop (hx-series desktop-class) processor, 2.4GHz base / 5.0GHz boost, 55W TDP, Arrow Lake-HX, BGA 2114 (BGA, soldered) socket

The Intel Core Ultra 7 255HX is a desktop-class performance chip in a mobile package for high-end gaming and creator laptops. Built on Intel's Arrow Lake-HX architecture, it pairs 20 cores and 20 threads with a 2.4GHz base clock that boosts up to 5.0GHz, an on-die NPU rated at 13 TOPS (NPU 3), and Intel Graphics (Xe-LPG, reduced EU count) graphics, all within a 55W envelope.

Performance and Architecture

With 20 cores and 20 threads, the Intel Core Ultra 7 255HX is built on Intel's Arrow Lake-HX generation. Its 2.4GHz base clock boosts to 5.0GHz, and its Intel Graphics (Xe-LPG, reduced EU count) integrated graphics and 13 TOPS (NPU 3) NPU support on-device AI features alongside everyday computing and light content creation.

Measured results

Cinebench scores

Cinebench 2024, Multi-Core Median of 2 independently published results.	1,730 1,700.5 to 1,759
Cinebench 2024, Single-Core Median of 2 independently published results.	131 130.1 to 131

Measured results

Geekbench scores

Geekbench 6, Multi-Core Median of 2 independently published results.	17,673 17,370 to 17,976
Geekbench 6, Single-Core Median of 2 independently published results.	2,946 2,940 to 2,951

Platform and Efficiency

The Intel Core Ultra 7 255HX uses the BGA 2114 (BGA, soldered) platform in a 55W envelope, positioning it as high-end gaming and creator laptops. Its NPU brings Copilot+ style on-device AI acceleration to supported workloads.

Comparison to Alternatives

Within the Core Ultra lineup in this catalog, the Intel Core Ultra 7 255HX sits in the 7-series tier alongside other Arrow Lake-HX parts, differentiated mainly by clock speed, core count, and TDP. Against AMD's Ryzen AI Mobile processors in this catalog, Intel's Core Ultra competes on NPU throughput, integrated graphics, and platform efficiency, while against Intel's own prior-generation Core i mobile parts in this catalog it adds the on-die NPU and improved efficiency cores.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating8.8 / 10

The Intel Core Ultra 7 255HX brings desktop-class core counts to a mobile package, suited to high-end gaming and creator laptops that can handle the higher TDP.

Best for

High-end gaming laptops
Mobile content creation
Desktop-replacement workstations

Not for

Thin-and-light laptops
Battery-life-focused use
Fanless designs

Specifications

What these specs mean

Identity

Codename	Arrow Lake
Release Year	2025

Segment and platform

Market Segment	Laptop
Microarchitecture	Arrow Lake-HX
Socket	BGA 2114 (BGA, soldered)
Process Node	3 nm

Core configuration

Total Cores	20
Performance Cores	8
Efficiency Cores	12
Total Threads	20
SMT Enabled	No

Clock speeds

P-Core Base Clock	2.4 GHz
P-Core Boost Clock	5.2 GHz

Cache

L3 Cache	30 MB

Power and thermal

Base Power	55 W
Max Turbo Power	160 W

Memory

Memory Type	DDR5

Graphics and AI

Integrated Graphics	Yes
NPU Peak TOPS	13 TOPS (NPU 3)

Form Factor	Laptop
TDP	55 W
iGPU	Intel Graphics (Xe-LPG, reduced EU count)

FAQs

What are the key specifications of the Intel Core Ultra 7 255HX?

The Intel Core Ultra 7 255HX has 20 cores and 20 threads, a 2.4 GHz base and 5.2 GHz boost clock, 30 MB of L3 cache and a 55 W TDP. Integrated graphics: Intel Graphics (Xe-LPG, reduced EU count). Socket: BGA 2114 (BGA, soldered).

Will the Intel Core Ultra 7 255HX work with my current setup?

The Intel Core Ultra 7 255HX lists Socket is BGA 2114 (BGA, soldered). Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the Intel Core Ultra 7 255HX best suited to?

Best suited to: High-end gaming laptops; Mobile content creation; Desktop-replacement workstations.

What are the drawbacks of the Intel Core Ultra 7 255HX?

Not the best fit for: Thin-and-light laptops; Battery-life-focused use; Fanless designs.