Home / CPU Comparison / Intel Core Ultra 7 155U or Intel Core Ultra 7 255H: What's better?

Intel Core Ultra 7 155U

vs

Intel Core Ultra 7 255H

CPU Comparison Result

Below are the results of a comparison of Intel Core Ultra 7 155U and Intel Core Ultra 7 255H processors based on key performance characteristics, as well as power consumption and much more.

Advantages

Intel Core Ultra 7 255H

More Total Cores: 16 (12 vs 16)
Higher Performance-core Max Turbo Frequency: 5.1 GHz (4.8 GHz vs 5.1 GHz)
Larger L3 Cache: 24 MB shared (12MB shared vs 24 MB shared)
Higher Technology: 3 nm (7 nm vs 3 nm)
Newer Launch Date: January 2025 (December 2023 vs January 2025)

Basic

Intel

Label Name

Intel

December 2023

Launch Date

January 2025

Laptop

Platform

Laptop

155U

Model Name

255H

Meteor Lake

Code Name

Arrow Lake

CPU Specifications

Total Cores

Cores is a hardware term that describes the number of independent central processing units in a single computing component (die or chip).

Total Threads

Performance-cores

Efficient-cores

2.0 GHz

Performance-core Base Frequency

2.0 GHz

1.6 GHz

Efficient-core Base Frequency

1.5 GHz

4.8 GHz

Performance-core Max Turbo Frequency

5.1 GHz

112K per core

L1 Cache

112 K per core

2MB per core

L2 Cache

2 MB per core

12MB shared

L3 Cache

24 MB shared

Bus Frequency

100 MHz

CPU Socket

The socket is the component that provides the mechanical and electrical connections between the processor and motherboard.

FCBGA-2049

Multiplier

Unlocked Multiplier

7 nm

Technology

Lithography refers to the semiconductor technology used to manufacture an integrated circuit, and is reported in nanometer (nm), indicative of the size of features built on the semiconductor.

3 nm

12-57 W

TDP

20-28 W

110°C

Max. Operating Temperature

Junction Temperature is the maximum temperature allowed at the processor die.

110 °C

PCIe Version

PCI Express is a high-speed serial computer expansion bus standard used for connecting high-speed components, replacing older standards such as AGP, PCI, and PCI-X. It has gone through multiple revisions and improvements since its initial release. PCIe 1.0 was first introduced in 2002, and in order to meet the growing demand for higher bandwidth, subsequent versions have been released over time.

5.0

Instruction Set

An instruction set architecture (ISA) defines the instructions a processor can execute. Common architectures include x86-64, ARM and RISC-V. The ISA determines software compatibility, while optional instruction extensions add specialized capabilities.

x86-64

Memory Specifications

LPDDR5-7467, LPDDR5x-7467, DDR5-5600

Memory Type

LPDDR5-8400,LPDDR5x-8400,DDR5-6400

96GB

Max Memory Size

Max memory size refers to the maximum memory capacity supported by the processor.

128 GB

Memory Channels

The number of memory channels refers to the bandwidth operation for real world application.

ECC Memory Support

ECC Memory Supported indicates processor support for Error-Correcting Code memory. ECC memory is a type of system memory that can detect and correct common kinds of internal data corruption. Note that ECC memory support requires both processor and chipset support.

GPU Specifications

Intel® Graphics

Integrated Graphics Model

An integrated GPU refers to the graphics core that is integrated into the CPU processor. Leveraging the processor's powerful computational capabilities and intelligent power efficiency management, it delivers outstanding graphics performance and a smooth application experience at a lower power consumption.

Intel® Arc™ 140T GPU

GPU Max Dynamic Frequency

2250 MHz