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

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

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

Main Differences

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)
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)

Score

VS

General Parameters

Oct 2023
Release Date
Jan 2025
Qualcomm
Manufacturer
Intel
Laptop
Type
Laptop
ARMv8
Instruction Set
-
Snapdragon X
Core Architecture
Arrow Lake
X1E-78-100
Processor Number
-
Custom
Socket
Intel Socket 1851
Qualcomm Adreno X1
Integrated Graphics
Arc Xe-LPG
-
Generation
Ultra 7 (Arrow Lake)

Package

4 nm
Manufacturing Process
3 nm
35 W
Power Consumption
17-55 W
45 W
Max Turbo Power Consumption
-
-
Peak Operating Temperature
100 °C
-
Foundry
Intel

CPU Performance

12
Performance Cores
8
12
Performance Core Threads
8
3.4 GHz
Performance Core Base Frequency
2.4 GHz
-
Performance Core Turbo Frequency
5.2 GHz
-
Efficiency Cores
12
-
Efficiency Core Threads
12
-
Efficiency Core Base Frequency
1.8 GHz
-
Efficiency Core Turbo Frequency
4.5 GHz
12
Total Core Count
20
12
Total Thread Count
20
-
Bus Frequency
100 MHz
34x
Multiplier
24
-
L1 Cache
112 KB per core
-
L2 Cache
23 MB
42 MB
L3 Cache
24 MB shared
No
Unlocked Multiplier
No
-
SMP
1

Memory Parameters

LPDDR5x-8448
Memory Types
DDR5-6400
64 GB
Max Memory Size
256 GB
8
Max Memory Channels
2
135 GB/s
Max Memory Bandwidth
102.4 GB/s
No
ECC Memory Support
Yes

Graphics Card Parameters

true
Integrated Graphics
true
500 MHz
GPU Base Frequency
-
1200 MHz
GPU Max Dynamic Frequency
1900 MHz
1536
Shader Units
-
48
Texture Units
-
6
Raster Operation Units
-
6
Execution Units
64
3.8 TFLOPS
Graphics Performance
-

AI Accelerator

Qualcomm Hexagon NPU
NPU
-
45 TOPS
Theoretical performance
-

Miscellaneous

4.0
PCIe Version
5
-
PCIe Lanes

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