Intel Core Ultra 7 255U

Cores: 12
L3 cache: 12MB (shared)
TDP: 12-15 W (max. boost up to 57 W)
Transistor size: 3 nm

Core Ultra 7 255U - laptop processor produced by Intel for socket FCBGA-2049 that has 12 cores and 14 threads. The base clock frequency of the CPU is 2000 MHz, but due to Turbo Boost technology, it can perform up to 5200 MHz. The size of the L3 cache is 12 MB. Please note that this chip has integrated graphics Arc Graphics (4-Cores).

Review

Single-Core Performance

69

Multi-Core Performance

30

Power Efficiency

77

Integrated Graphics

52

NanoReview Final Score

54

Compare Intel Core Ultra 7 255U with other CPUs

Cinebench

Reputable cross-platform benchmark for high-performance processors

Cinebench 2024 (Single)

107

Cinebench 2024 (Multi)

515

Submit your benchmark results

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps

Geekbench 6 (Single-Core)

2450

Geekbench 6 (Multi-Core)

10058

File compression	999.4 MB/sec
Clang compilation	75.6 Klines/sec
HTML 5 Browser	267.7 pages/sec
PDF Renderer	334.8 Mpixels/sec
Text processing	240.5 pages/sec
Background blur	46.6 images/sec
Photo processing	80.8 images/sec
Ray tracing	12 Mpixels/sec

Sources: GeekBench [1]

PassMark

Synthetic test that focuses on raw computational performance for low-level functions

Passmark CPU (Single-Core)

3648

Passmark CPU (Multi-Core)

17874

Integer math	65.3 GOps/sec
Floating point math	45.7 GOps/sec
Find prime numbers	63M Primes/sec
Random string sorting	21.3M Strings/sec
Data encryption	12.4 GBytes/sec
Data compression	196.1 MBytes/sec
Physics	1137 Frames/sec
Extended instructions	10.8B Matrices/sec

Sources: PassMark [3] – 649 samples

Performance Per Watt

Shows the score you get per each watt of PL1 TDP

Cinebench 2024 / Watt	34.3 PPW
Geekbench 6 Multi / Watt	670.5 PPW
Passmark CPU Mark / Watt	1191.6 PPW

These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

General

Vendor	Intel
Released	January 6, 2025
Type	Laptop
Instruction Set	x86-64
Codename	Arrow Lake
Model number	255U
Integrated GPU	Arc Graphics (4-Cores)

Intel CPU rating - 120th place

CPU

Performance Cores
P-Cores	2
P-Threads	4
Base Frequency (P)	2.0 GHz
Turbo Boost Frequency (P)	5.2 GHz

Efficient Cores
E-Cores	10
E-Threads	10
Base Frequency (E)	1.7 GHz
Turbo Boost Frequency (E)	4.2 GHz

Total
Total Cores	12
Total Threads	14
Bus Frequency	100 MHz
Multiplier	20x
L1 Cache	112K (per core)
L2 Cache	2MB (per core)
L3 Cache	12MB (shared)
Unlocked Multiplier	No

Package

Fabrication Process	3 nm
TDP (PL1)	12-15 W (configurable)
Max. Boost TDP (PL2)	57 W
Socket	FCBGA-2049
Peak Temperature	110°C

Laptop processors ranking - 159th place

iGPU

Integrated Graphics	Arc Graphics (4-Cores)
GPU Base Clock	300 MHz
GPU Boost Clock	2100 MHz
Shading Units	512
TMUs	32
ROPs	16
Execution Units	64
TGP	14 W

iGPU FLOPS

2.2 TFLOPS

See also: Intel Arc iGPU (4-Cores) – integrated graphics of Intel Core Ultra 7 255U

Memory Support

Memory Types	- LPDDR5-8400 - LPDDR5x-8400 - DDR5-6400
Max. Memory Size	128 GB
Memory Channels	2
ECC Support	No

Misc

Official Site	Intel Core Ultra 7 255U official page
PCI Express Version	4.0
PCI Express Lanes	20

Competitors

1. Intel Core Ultra 7 255U vs Intel Core Ultra 7 155U

2. Intel Core Ultra 7 255U vs Intel Core Ultra 7 255H

3. Intel Core Ultra 7 255U vs Intel Core Ultra 7 265U

4. Intel Core Ultra 7 255U vs Intel Core 7 150U

5. Intel Core Ultra 7 255U vs Intel Core Ultra 7 165U

6. Intel Core Ultra 7 255U vs Intel Core i7 1355U

Compare other CPUs (460+)