Core Ultra 7 255HX – laptop processor produced by Intel for socket FCBGA-2114 that has 20 cores and 20 threads. The base clock frequency of the CPU is 2400 MHz, but due to Turbo Boost technology, it can perform up to 5200 MHz. The size of the L3 cache is 30 MB. Please note that this chip has integrated graphics Arc Graphics (4-Cores).
Intel Core Ultra 7 255HX
Cores:
20
L3 cache:
30MB (shared)
TDP:
45-55 W (max. boost up to 160 W)
Transistor size:
3 nm
Review
Single-Core Performance
87%
Multi-Core Performance
67%
Power Efficiency
76%
Integrated Graphics
51%
Quick Comparisons Final Score
76%
Test in Benchmarks
Performance test of Intel Core Ultra 7 255HX in benchmarks
Cinebench
Reputable cross-platform benchmark for high-performance processors
Cinebench R23 (Single-Core)
2101
Cinebench R23 (Single-Core)
26622
Cinebench 2024 (Single)
130
Cinebench 2024 (Multi)
1694
Cinebench Scores –
GeekBench v6
The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
2989
Geekbench 6 (Multi-Core)
15924
File compression
1140 MB/sec
Clang compilation
149.8 Klines/sec
HTML 5 Browser
312.2 pages/sec
PDF Renderer
423.9 Mpixels/sec
Text processing
335.6 pages/sec
Background blur
64.1 images/sec
Photo processing
111.8 images/sec
Ray tracing
31.1 Mpixels/sec
PassMark
Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
4595
Passmark CPU (Multi-Core)
49240
Integer math
129.3 GOps/sec
Floating point math
164.3 GOps/sec
Find prime numbers
407M Primes/sec
Random string sorting
64.1M Strings/sec
Data encryption
40.4 GBytes/sec
Data compression
527.5 MBytes/sec
Physics
3014 Frames/sec
Extended instructions
42.4B Matrices/sec
Blender
3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
391.12
Performance Per Watt
Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt
30.8 PPW
Geekbench 6 Multi / Watt
289.5 PPW
Passmark CPU Mark / Watt
895.3 PPW
Blender / Watt
7.11 PPW
Specifications
Core Ultra 7 255HX technical specifications
General
Vendor
Intel
Released
January 6, 2025
Type
Laptop
Instruction Set
x86-64
Codename
Arrow Lake
Integrated GPU
Arc Graphics (4-Cores)
CPU
Performance Cores
P-Cores
8
P-Threads
8
Base Frequency (P)
2.4 GHz
Efficient Cores
E-Cores
12
E-Threads
12
Base Frequency (E)
1.8 GHz
Total
Total Cores
20
Total Threads
20
Multiplier
24x
L1 Cache
192K (per core)
L2 Cache
2MB (per core)
Unlocked Multiplier
Yes
Package
Transistors
Fabrication Process
3 nm
TDP (PL1)
45-55 W (configurable)
Max. Boost TDP (PL2)
160 W
Socket
FCBGA-2114
Peak Temperature
105°C
iGPU
Integrated Graphics
51
GPU Base Clock
300 MHz
GPU Boost Clock
1850 MHz
Shading Units
512
TMUs
32
ROPs
16
Execution Units
64
TGP
14 W
iGPU FLOPS
1.9
Memory Support
Memory Types
– DDR5-6400
Max. Memory Size
256 GB
Memory Channels
2
Max. Memory Bandwidth
ECC Support
Yes
Misc
Official Site
Intel Core Ultra 7 255HX official page
PCI Express Version
5.0
PCI Express Lanes
24
Technologies
– Compute: ABM, ADX, AI Boost 3.0, AVX-VNNI, BMI1, BMI2, CLMUL, DLBoost 3.0, F16C, IPU 6.0, SHA – Performance: CFET, EIST, Speed Shift, TBMT 3.0, TBT 2.0, Thread Director – Virtualization: VT-d, VT-x, VT-x EPT – Security: MBEC, RDRAND, TDT, TXT, XD bit, vPro