Intel Core Ultra 7 255HX specifications and performance

Intel Core Ultra 7 255HX is a 20 cores and 20 threads CPU processor produced by Intel. Intel Core Ultra 7 255HX was released on 2025-01-06, the fabrication process is 3nm (nanometer), the CPU codename is Arrow Lake, the instruction set architecture is x86-64, and the CPU's integrated graphics (iGPU) is Graphics.

Basic Information

Vendor / Supplier Intel
Short name intel ultra 7 255hx
Release date 2025-01-06
CPU code name Arrow Lake
Fabrication process 3nm (nanometer)
Instruction set architecture x86-64
Market Laptop
Integrated Graphics (iGPU) Graphics

CPU core specifications

Total number of cores 20 cores
Total number of threads 20 threads
Number of performance cores 8 cores
Number of performance core threads 8 threads
Performance core base frequency / main frequency 2.4GHz
Performance core maximum turbo frequency 5.2GHz
Number of energy efficiency cores 12 cores
Number of energy-efficient core threads 12 threads
Energy efficiency core basic frequency / main frequency 1.8GHz
Energy efficiency core maximum turbo frequency 4.5GHz

CPU cache and frequency

Bus frequency 100MHz
L1 Cache 112 KB
L2 Cache 2 MB
L3 Cache 30 MB
Unlock multiplier

Memory specifications

Maximum supported memory 192GB
Memory frequency support
  • - DDR5-6400MHz
Maximum number of memory channels 2
Maximum memory bandwidth
ECC support Yes

Package specifications

CPU Socket FCBGA-2114
Default thermal design power / TDP PL1 45W
Maximum Turbo Power Consumption / TDP PL2 160W
Maximum temperature 105°C
PCIe interface PCIe 5.0
PCIe lane count 24

Integrated Graphics specifications

Integrated Graphics (iGPU) Intel Graphics
Base frequency
Maximum acceleration frequency 1850MHz
Number of execution units
Stream Processors / Shading Units
Texture Units / TMUs
Raster Operations Units / ROPs
Total Graphics Power / TGP
FP32 computing performance
0

Cinebench R23 performance test

Single core performance score
2031
Multi-core performance score
24802

PassMark performance test

Single core performance score
Multi-core performance score
Integer math
Floating point math
Find prime numbers
Random string sorting
Data encryption
Data compression
Physics simulation
Extended instruction test

GeekBench v6 performance test

Single core performance
3103
Multi-core performance
15894
File compression
clang compilation
HTML5 browsing
PDF rendering
Text processing
Background blur
Photo processing
Ray tracing