Home / CPU Comparison / Intel Core Ultra 5 235HX or Intel Core Ultra 7 251HX: What's better?

Intel Core Ultra 5 235HX

vs

Intel Core Ultra 7 251HX

CPU Comparison Result

Below are the results of a comparison of Intel Core Ultra 5 235HX and Intel Core Ultra 7 251HX processors based on key performance characteristics, as well as power consumption and much more.

Advantages

Intel Core Ultra 7 251HX

More Total Cores: 18 (14 vs 18)
Newer Launch Date: January 2026 (January 2025 vs January 2026)

Basic

Intel

Label Name

Intel

January 2025

Launch Date

January 2026

Laptop

Platform

Mobile

Core Ultra 5 235HX

Model Name

251HX

Arrow Lake

Code Name

Products formerly Arrow Lake

Intel

Foundry

Ultra 5 (Arrow Lake)

Generation

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

Intel Virtualization Technology (VT-x)

Yes

Intel Virtualization Technology for Directed I/O (VT-d)

Yes

Max Turbo Frequency

5.1 GHz

2.9 GHz

Performance-core Base Frequency

2.9 GHz

2.6 GHz

Efficient-core Base Frequency

2.5 GHz

4.5 GHz

Efficient-core Max Turbo Frequency

4.5 GHz

Instruction Set Extensions

Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2

5.1 GHz

Performance-core Max Turbo Frequency

5.1 GHz

Enhanced Intel SpeedStep Technology

Yes

Intel Hyper-Threading Technology

Intel Turbo Boost Max Technology 3.0

Intel Turbo Boost Technology

2.0

112 KB per core

L1 Cache

23 MB

L2 Cache

24 MB shared

L3 Cache

100 MHz

Bus Frequency

Cache

30 MB Intel® Smart Cache

Intel Socket 1851

CPU Socket

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

FCBGA2114

Multiplier

Unlocked Multiplier

Intel AES New Instructions

Yes

3 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.

TSMC N3B

17-55 W

TDP

Processor Base Power

55 W

Maximum Turbo Power

160 W

Minimum Assured Power

45 W

100 °C

Max. Operating Temperature

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

105 °C

PCI Express Version

PCI Express Revision is the supported version of the PCI Express standard. Peripheral Component Interconnect Express (or PCIe) is a high-speed serial computer expansion bus standard for attaching hardware devices to a computer. The different PCI Express versions support different data rates.

5.0 and 4.0

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.

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.

64-bit

Intel 64

Yes

Intel VT-x with Extended Page Tables (EPT)

Yes

PCI Express Configurations

PCI Express (PCIe) Configurations describe the available PCIe lane configurations that can be used to link to PCIe devices.

1x16+2x4, 2x8+2x4, 1x8+4x4

Memory Specifications

DDR5-6400

Memory Type

Up to DDR5 6400 MT/s

256 GB

Max Memory Size

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

Memory Channels

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

102.4 GB/s

Max Memory Bandwidth

Max Memory bandwidth is the maximum rate at which data can be read from or stored into a semiconductor memory by the processor (in GB/s).

Yes

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

GPU Name

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.

1800 MHz

GPU Max Dynamic Frequency

1.8 GHz

Graphics Base Frequency

Graphics Base frequency refers to the rated/guaranteed graphics render clock frequency in MHz.

300 MHz

Xe-cores

DirectX Support

DirectX* Support indicates support for a specific version of Microsoft’s collection of APIs (Application Programming Interfaces) for handling multimedia compute tasks.

Execution Units

Max Resolution (DP)

Max Resolution (DP) is the maximum resolution supported by the processor via the DP interface (24bits per pixel & 60Hz). System or device display resolution is dependent on multiple system design factors; actual resolution may be lower on your system.

7680 x 4320 @ 60Hz

Max Resolution (eDP - Integrated Flat Panel)

Max Resolution (Integrated Flat Panel) is the maximum resolution supported by the processor for a device with an integrated flat panel (24bits per pixel & 60Hz). System or device display resolution is dependent on multiple system design factors; actual resolution may be lower on your device.

3840 x 2400 @ 120Hz

Max Resolution (HDMI)

Max Resolution (HDMI) is the maximum resolution supported by the processor via the HDMI interface (24bits per pixel & 60Hz). System or device display resolution is dependent on multiple system design factors; actual resolution may be lower on your system.

4096 x 2304 @ 60Hz (HDMI 2.1 TMDS)
7680 x 4320 @ 60Hz (HDMI 2.1 FRL)

Number of Displays Supported

Graphics Output

Graphics Output defines the interfaces available to communicate with display devices.

eDP1.4b, DP 2.1 UHBR20, HDMI 2.1 FRL

OpenGL Support

OpenGL (Open Graphics Library) is a cross-language, multi-platform API (Application Programming Interface) for rendering 2D and 3D vector graphics.

4.5

OpenCL Support

OpenCL (Open Computing Language) is a multi-platform API (Application Programming Interface) for heterogeneous parallel programming.

Intel Quick Sync Video

Yes

AI Specifications

Intel Gaussian Neural Accelerator

3.5

NPU Name

Intel® AI Boost

Intel Deep Learning Boost (Intel DL Boost) on CPU

Yes

Interfaces and Ports

Intel Volume Management Device (VMD)

Yes

PCIe Lanes

Miscellaneous

Official Website

Intel Core Ultra 7 251HX

Intel Standard Manageability (ISM)

Yes

Execute Disable Bit

Execute Disable Bit is a hardware-based security feature that can reduce exposure to viruses and malicious-code attacks and prevent harmful software from executing and propagating on the server or network.

Yes

Intel Active Management Technology (AMT)

Intel High Definition Audio

Yes

Intel Boot Guard

Yes

Intel Control-Flow Enforcement Technology

Yes

Intel OS Guard

Yes