Intel Core Ultra 7 255HX vs Intel Core i5 8257U
CPU Specs Compare
General Parameters
Release Date
Jan 2025
Jul 2019
Manufacturer
Intel
Intel
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Arrow Lake
Coffee Lake
Processor Number
255HX
i5-8257U
Integrated Graphics
Arc Graphics (4-Cores)
Iris Plus Graphics 645
Generation
Ultra 7 (Arrow Lake)
-
Package
Manufacturing Process
3 nm
14 nm
Socket
FCBGA-2114
BGA-1528
Power Consumption
45-55 W
15 W
Max Turbo Power Consumption
160 W
-
Peak Operating Temperature
105 °C
100 °C
Foundry
Intel
-
Package
FC-LGA18V
-
CPU Performance
Performance Cores
8
4
Performance Core Threads
8
8
Performance Core Base Frequency
2.4 GHz
1.4 GHz
Performance Core Turbo Frequency
5.2 GHz
3.9 GHz
Efficiency Cores
12
-
Efficiency Core Threads
12
-
Efficiency Core Base Frequency
1.8 GHz
-
Efficiency Core Turbo Frequency
4.5 GHz
-
Total Core Count
20
4
Total Thread Count
20
8
Bus Frequency
100 MHz
-
Multiplier
24
14x
L1 Cache
112 K per core
32 K per core
L2 Cache
2 MB per core
256 K per core
L3 Cache
30 MB shared
6 MB shared
Unlocked Multiplier
Yes
No
SMP
1
-
Memory Parameters
Memory Types
DDR5-6400
DDR4-2400, LPDDR3-2133
Max Memory Size
192 GB
32 GB
Max Memory Channels
2
2
Max Memory Bandwidth
102.4 GB/s
37.5 GB/s
ECC Memory Support
Yes
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
300 MHz
GPU Max Dynamic Frequency
1850 MHz
1050 MHz
Shader Units
512
384
Texture Units
32
48
Raster Operation Units
16
6
Execution Units
64
48
Power Consumption
14
15 W
Max Resolution
-
4096x2304 - 60 Hz
Miscellaneous
📊 Benchmark
Cinebench R23
2,030
996
Cinebench R23
25,611
4,031
Geekbench 6
3,102
1,210
Geekbench 6
15,879
3,922
Cinebench 2024
132
-
Cinebench 2024
1,590
-
Geekbench 5
-
916
Geekbench 5
-
3,820