Intel Core Ultra 7 255HX — Specifications and Blender benchmarks

Specifications Benchmarks Synonyms

Specifications

Technical data

CPU generation and family

Family
Intel Core Ultra Series 2
Name
Intel Core Ultra 7 255HX
Segment
Mobile

CPU Cores and Base Frequency

CPU Cores
20
CPU Threads
20
E-core Base Clock
1.8 GHz
Efficient Cores
12
Low Power Efficient-cores
0
Max. Boost Clock
5.2 GHz
P-core Base Clock
2.4 GHz
Performance Cores
8

Internal Graphics

GPU name
Intel Graphics
GPU Turbo
1850 MHz

Memory & PCIe

Max. Memory
256 GB
Memory channels
2
Memory type
Up to DDR5 6400 MT/s

Thermal Management

Maximum Turbo Power
160 W
Minimum Assured Power
45 W
TDP (PL1 / PBP, legacy combined label)
55 W

Technical details

L3-Cache
30 MB
Official specification sheet
https://cdrdv2-public.intel.com/851467/Intel-Core-Ultra-Series1-Series2-Series3-Comparison.pdf
Release date
Q1/2025
Socket
FCBGA2114

Positions in all rankings

Common positions Intel Core Ultra 7 255HX CPU in popular benchmarks, for comparison with other models.

No data

Benchmarks

Performance tests CPU

Published results: 6

Blender Cycles

Each row uses one Blender version, operating system and compute backend.

Test and settings	Intel Core Ultra 7 255HX
Blender 4.4.0 / CPU / Linux	390.476071 samples/min Submissions: 5
Blender 4.4.0 / CPU / Windows	393.445339 samples/min Submissions: 12
Blender 4.5.0 / CPU / Windows	396.987215 samples/min Submissions: 37
Blender 5.1.0 / CPU / Windows	423.52739 samples/min Submissions: 6
Blender 5.1.1 / CPU / Windows	388.979486 samples/min Submissions: 9
Blender 5.2.0 / CPU / Windows	380.474848 samples/min Submissions: 18

Individual system tests

Results were obtained on the reported systems. Test versions and settings remain separate; incomplete conditions do not support calculated model performance differences.

RandomX / XMRig 6.25.0 / 10M / 20 threads / windows

Result	Reported conditions
10096.940728 H/s	RandomX / XMRig 6.25.0 / 10M / 20 threads / windows System RAM: 32 GB OS: Windows NT 10.0 Motherboard: LENOVO / LNVNB161216 Duration: 990.399 s User-submitted run; tuning and power settings are incomplete.