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Intel Core Ultra 7 255HX

Intel · Released Jan 1, 2025

Intel Core Ultra 7 255HX

Arrow Lake is the codename for Core Ultra Series 2 processors designed by Intel, released on October 24, 2024. It follows on from Meteor Lake which saw Intel move from monolithic silicon to a disaggregated multi-chip module design. Meteor Lake was limited to a mobile release while Arrow Lake includes both socketable desktop processors and mainstream and enthusiast mobile processors. Core Ultra 200H and 200HX series mobile processors followed in early 2025. Arrow Lake desktop CPUs integrated Thunderbolt 4 and USB4 support in the CPU, which allowed it to not be limited by PCIe 3.0 speeds and use simple re-timers instead. The chipset has the same maximum five integrated USB 3.2 2×2, and is Thunderbolt 5 ready if a discrete board is used. The integrated GPU added HDMI 2.1 FRL 48 Gbit/s and variable refresh rate (VRR) support. CU-DIMM DDR5 memory support was added and is needed for optimal performance.

Description and image from Wikipedia (CC BY-SA 4.0)

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Specifications

Identity
Processor Number
255HX
Segment
Mobile
Product Collection
Intel® Core™ Ultra Processors (Series 2)
Codename
Arrow Lake
Socket
FCBGA2114
Launch
Q1'25
Performance
Total Cores
20
Performance Cores
8
Efficient Cores
12
Total Threads
20
Max Turbo
5.2 GHz
P-Core Max Turbo
5.2 GHz
E-Core Max Turbo
4.5 GHz
P-Core Base
2.4 GHz
E-Core Base
1.8 GHz
Cache
30 MB Intel® Smart Cache
L2 Cache
36 MB
Memory
Max Memory
256 GB
Memory Types
Up to DDR5 6400 MT/s
Memory Channels
2
ECC Support
No
Integrated GPU
Integrated Graphics
Intel® Graphics
iGPU Base
300 MHz
iGPU Max
1.85 GHz
Power
Base Power
55 W
Max Turbo Power
160 W

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Catalog data from Intel ARK and AMD spec pages. Microarchitecture context from Wikipedia (CC BY-SA 4.0). Prices observed from Canadian retailers and refreshed daily. Current price = most recent observation per listing within the last 7 days.

Last refreshed: May 21, 2026, 9:22 p.m.