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Intel Core Ultra 7 255U
Benchmarks & Specs

Name: Intel Core Ultra 7 255U
Brand: Intel
Rating: 2.3 (84 reviews)

Last updated: 2026-06-06

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

The Intel Core Ultra 7 255U is an interesting mobile processor. It is manufactured using an advanced 3nm process. This likely ensures very good energy efficiency. This is especially important for long battery life. The architecture is called Meteor Lake U Refresh. It certainly promises improved overall performance.

This chip has integrated graphics. It's called Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake). This allows everyday tasks to be performed smoothly. Lighter graphical applications are also no problem. The processor surprisingly offers us 12 MB of Level 2 Cache. This is quite remarkable for this class.

The maximum memory bandwidth is 134 GB/s. This contributes to the speedy operation. We see the Intel Core Ultra 7 255U as a strong option. It is well suited for slim laptops. It offers a solid mix of performance and efficiency. Surely, it will be able to convince many users.

Advanced 3nm manufacturing
Improved Meteor Lake U Refresh Architecture
Integrated Intel Iris Xe Graphics
Solid performance and high efficiency

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank 152 / 834
In segment Notebook

Multi-core performance

Rank 219 / 832
In segment Notebook

Geekbench 6 Single-Core
Single-core performance

4C / 8T · 4.50 GHz

2,410

16C / 22T · 4.80 GHz

2,407

12C / 14T · 5.20 GHz

2,406

14C / 20T · 4.80 GHz

2,404

6C / 12T · 4.90 GHz

2,402

Geekbench 6 Multi-Core
Multi-core performance

8C / 16T · 3.30 GHz

8,200

8C / 16T · 3.30 GHz

8,200

12C / 14T · 2.00 GHz

8,160

6C / 12T · 3.80 GHz

8,152

6C / 12T · 3.60 GHz

8,152

iGPU - FP32 Performance (Single-precision GFLOPS)

Intel Iris Xe Graphics 96 (Alder Lake)

2,146

Qualcomm Adreno X1

2,100

Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake)

2,084

Intel Iris Xe Graphics 96 (Tiger Lake)

2,070

Intel Iris Xe Graphics 96 (Tiger Lake)

2,070

AI performance (NPU)

8C / 8T · 0.66 GHz

15.8 TOPS

8C / 8T · 0.66 GHz

15.8 TOPS

12C / 14T · 2.00 GHz

13.0 TOPS

8C / 8T · 0.60 GHz

11.0 TOPS

10C / 10T · 0.60 GHz

11.0 TOPS

More benchmarks

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

FP32 SP (iGPU)
2,219 entries

AI performance (NPU)
218 entries

Specifications

At a glance

Property	Value
Family	Intel Core Ultra 7 (31)
CPU group	Intel Core Ultra 200U (4)
Architecture	Meteor Lake U Refresh
Technology	3 nm
Segment	Notebook
Socket	BGA 2049
Generation	2
Predecessor	Intel Core Ultra 7 155U Q4/2023
Successor

CPU Cores and Base Frequency

Property	Value
CPU Cores / Threads	12 / 14
Hyperthreading / SMT	✓
Core architecture	hybrid (big.LITTLE)
Core Cluster 1:	2x Redwood Cove 2.00 - 5.20 GHz
Core Cluster 2:	8x Crestmont 1.70 - 4.20 GHz
Core Cluster 3:	2x Crestmont 0.70 - 2.40 GHz
L2-Cache	12.00 MB
L3-Cache
Overclocking	No

Integrated graphics (iGPU)

Property	Value
GPU name	Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake)
GPU frequency	0.60 - 2.10 GHz
CUs / Shader	64 / 512
Raytracing	✓
Max. displays	4
Max. GPU Memory	32 GB
Technology	5 nm
Release date	Q4/2023

NPU AI performance

Property	Value
AI hardware	Intel® AI Boost
AI specifications	Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT)
NPU + CPU + iGPU

Memory & PCIe

Memory type	Memory bandwidth
LPDDR5X-8400 DDR5-6400	134.4 GB/s 102.4 GB/s
Property	Value
Max. Memory	128 GB
Memory channels	2
ECC	✗
PCIe	4.0 x 20
PCIe Bandwidth	39.4 GB/s

Thermal Management

Property	Value
TDP	15 W
TDP (PL2)	57 W
TDP up
TDP down	12 W
T. junction max.	105 °C

Technical details

Property	Value
Chip design	Chiplet
AES-NI	✓
Operating systems	Windows 11, Linux
Instruction set	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2, AVX2
Release date	Q1/2025
Release price
Documents	Technical data sheet

User Reviews

Your rating

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★★★★★