Intel Core i7 8559U vs Intel Core Ultra 7 255H
We compared two laptop CPUs: Intel Core i7 8559U with 4 cores 2.7GHz and Intel Core Ultra 7 255H with 16 cores 2.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i7 8559U 's Advantages
Higher base frequency (2.7GHz vs 2.0GHz)
Intel Core Ultra 7 255H 's Advantages
Released 6 years and 9 months late
Higher specification of memory (8400 vs 2400)
Larger L3 cache size (24MB vs 8MB)
More modern manufacturing process (3nm vs 14nm)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i7 8559U
1416
Intel Core Ultra 7 255H
+99%
2823
Geekbench 6 Multi Core
Intel Core i7 8559U
4869
Intel Core Ultra 7 255H
+221%
15662
General Parameters
Apr 2018
Release Date
Jan 2025
Intel
Manufacturer
Intel
Laptop
Type
Laptop
-
Instruction Set
x86-64
Kaby Lake-R
Core Architecture
Arrow Lake
-
Processor Number
255H
Intel BGA 1356
Socket
FCBGA-2049
Iris Pro Plus
Integrated Graphics
Arc Graphics 140T
Core i7 (Kaby Lake-U Refresh)
Generation
-
Package
14 nm
Manufacturing Process
3 nm
28 W
Power Consumption
20-28 W
-
Max Turbo Power Consumption
115 W
72 °C
Peak Operating Temperature
110 °C
Intel
Foundry
-
123 mm²
Die Size
-
CPU Performance
-
Performance Cores
6
-
Performance Core Threads
6
2.7 GHz
Performance Core Base Frequency
2.0 GHz
4.5 GHz
Performance Core Turbo Frequency
5.1 GHz
-
Efficiency Cores
10
-
Efficiency Core Threads
10
-
Efficiency Core Base Frequency
1.5 GHz
-
Efficiency Core Turbo Frequency
4.4 GHz
4
Total Core Count
16
8
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
27.0
Multiplier
20
64 KB per core
L1 Cache
112 K per core
256 KB per core
L2 Cache
2 MB per core
8 MB shared
L3 Cache
24 MB shared
No
Unlocked Multiplier
No
1
SMP
-
Memory Parameters
DDR4-2400, LPDDR3-2133
Memory Types
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
32 GB
Max Memory Size
128 GB
2
Max Memory Channels
2
37.5 GB/s
Max Memory Bandwidth
-
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
300 MHz
GPU Base Frequency
-
1200 MHz
GPU Max Dynamic Frequency
2250 MHz
