Intel Core Ultra 7 255HX vs Intel Core Ultra 5 115U
We compared two laptop CPUs: Intel Core Ultra 7 255HX with 20 cores 2.4GHz and Intel Core Ultra 5 115U with 8 cores 1.5GHz . 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 1 months late
Integrated graphics card
Higher specification of memory (6400 vs 5600)
Newer PCIe version (5.0 vs 4)
Higher base frequency (2.4GHz vs 1.5GHz)
Larger L3 cache size (30MB vs 10MB)
More modern manufacturing process (3nm vs 7nm)
Intel Core Ultra 5 115U 's Advantages
Larger memory bandwidth (120GB/s vs 102.4GB/s)
Lower TDP (15W vs 55W)
Score
Benchmark
Geekbench 6 Single Core
Intel Core Ultra 7 255HX
+91%
3102
Intel Core Ultra 5 115U
1616
Geekbench 6 Multi Core
Intel Core Ultra 7 255HX
+197%
15879
Intel Core Ultra 5 115U
5338
General Parameters
Jan 2025
Release Date
Dec 2023
Intel
Manufacturer
Intel
Laptop
Type
Laptop
x86-64
Instruction Set
-
Arrow Lake
Core Architecture
Meteor Lake
255HX
Processor Number
-
FCBGA-2114
Socket
Intel BGA 2049
Arc Graphics (4-Cores)
Integrated Graphics
Arc Xe-LPG 48EU
Ultra 7 (Arrow Lake)
Generation
Ultra 5 (Meteor Lake)
Package
3 nm
Manufacturing Process
7 nm
45-55 W
Power Consumption
15 W
160 W
Max Turbo Power Consumption
-
105 °C
Peak Operating Temperature
110°C
Intel
Foundry
Intel
CPU Performance
8
Performance Cores
2
8
Performance Core Threads
4
2.4 GHz
Performance Core Base Frequency
1.5 GHz
5.2 GHz
Performance Core Turbo Frequency
4.2 GHz
12
Efficiency Cores
6
12
Efficiency Core Threads
6
1.8 GHz
Efficiency Core Base Frequency
1000 MHz
4.5 GHz
Efficiency Core Turbo Frequency
3.5 GHz
20
Total Core Count
8
20
Total Thread Count
10
100 MHz
Bus Frequency
100 MHz
24
Multiplier
15.0
112 K per core
L1 Cache
112 KB per core
2 MB per core
L2 Cache
2 MB per core
30 MB shared
L3 Cache
10 MB shared
Yes
Unlocked Multiplier
No
1
SMP
1
Memory Parameters
DDR5-6400
Memory Types
DDR5
Depends on motherboard-5600
192 GB
Max Memory Size
-
2
Max Memory Channels
2
102.4 GB/s
Max Memory Bandwidth
120 GB/s
Yes
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
-
300 MHz
GPU Base Frequency
-
1850 MHz
GPU Max Dynamic Frequency
-
512
Shader Units
-
32
Texture Units
-
16
Raster Operation Units
-
64
Execution Units
-
14
Power Consumption
-
1.9 TFLOPS
Graphics Performance
-
Miscellaneous
5.0
PCIe Version
4
24
PCIe Lanes
12
