Intel Core Ultra 7 255HX vs Qualcomm Snapdragon X Elite X1E 78 100

VS

Intel Core Ultra 7 255HX

Qualcomm Snapdragon X Elite (X1E-78-100)

We compared two laptop CPUs: Intel Core Ultra 7 255HX with 20 cores 2.4GHz and Qualcomm Snapdragon X Elite X1E 78 100 with 12 cores 3.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core Ultra 7 255HX 's Advantages

Released 1 years and 3 months late

Newer PCIe version (5 vs 4.0)

More modern manufacturing process (3nm vs 4nm)

Qualcomm Snapdragon X Elite X1E 78 100 's Advantages

Higher specification of memory (8448 vs 6400)

Larger memory bandwidth (135GB/s vs 102.4GB/s)

Higher base frequency (3.4GHz vs 2.4GHz)

Larger L3 cache size (42MB vs 24MB)

Lower TDP (35W vs 55W)

Score

Intel Core Ultra 7 255HX

VS

Qualcomm Snapdragon X Elite X1E 78 100

General Parameters

Jan 2025

Release Date

Oct 2023

Intel

Manufacturer

Qualcomm

Laptop

Type

Laptop

-

Instruction Set

ARMv8

Arrow Lake

Core Architecture

Snapdragon X

-

Processor Number

X1E-78-100

Intel Socket 1851

Socket

Custom

Arc Xe-LPG

Integrated Graphics

Qualcomm Adreno X1

Ultra 7 (Arrow Lake)

Generation

-

Package

3 nm

Manufacturing Process

4 nm

17-55 W

Power Consumption

35 W

-

Max Turbo Power Consumption

45 W

100 °C

Peak Operating Temperature

-

Intel

Foundry

-

CPU Performance

8

Performance Cores

12

8

Performance Core Threads

12

2.4 GHz

Performance Core Base Frequency

3.4 GHz

5.2 GHz

Performance Core Turbo Frequency

-

12

Efficiency Cores

-

12

Efficiency Core Threads

-

1.8 GHz

Efficiency Core Base Frequency

-

4.5 GHz

Efficiency Core Turbo Frequency

-

20

Total Core Count

12

20

Total Thread Count

12

100 MHz

Bus Frequency

-

24

Multiplier

34x

112 KB per core

L1 Cache

-

23 MB

L2 Cache

-

24 MB shared

L3 Cache

42 MB

No

Unlocked Multiplier

No

1

SMP

-

Memory Parameters

DDR5-6400

Memory Types

LPDDR5x-8448

256 GB

Max Memory Size

64 GB

2

Max Memory Channels

8

102.4 GB/s

Max Memory Bandwidth

135 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

500 MHz

1900 MHz

GPU Max Dynamic Frequency

1200 MHz

-

Shader Units

1536

-

Texture Units

48

-

Raster Operation Units

6

64

Execution Units

6

-

Graphics Performance

3.8 TFLOPS

AI Accelerator

-

NPU

Qualcomm Hexagon NPU

-

Theoretical performance

45 TOPS

Miscellaneous

Official Website

Qualcomm Snapdragon X Elite X1E 78 100

5

PCIe Version

4.0

PCIe Lanes

-

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