Intel Core Ultra 7 255H vs Intel Core i7 8705G
We compared two laptop CPUs: Intel Core Ultra 7 255H with 16 cores 2.0GHz and Intel Core i7 8705G with 4 cores 3.1GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core Ultra 7 255H 's Advantages
Released 7 years late
Integrated graphics card
Higher specification of memory (8400 vs 2400)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (24MB vs 8MB)
More modern manufacturing process (3nm vs 14nm)
Intel Core i7 8705G 's Advantages
Higher base frequency (3.1GHz vs 2.0GHz)
Score
Benchmark
Cinebench R23 Single Core
Intel Core Ultra 7 255H
+81%
2029
Intel Core i7 8705G
1116
Cinebench R23 Multi Core
Intel Core Ultra 7 255H
+318%
20521
Intel Core i7 8705G
4907
Geekbench 6 Single Core
Intel Core Ultra 7 255H
+155%
2823
Intel Core i7 8705G
1106
Geekbench 6 Multi Core
Intel Core Ultra 7 255H
+405%
15662
Intel Core i7 8705G
3101
General Parameters
Jan 2025
Release Date
Jan 2018
Intel
Manufacturer
Intel
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Arrow Lake
Core Architecture
Kaby Lake G
255H
Processor Number
i7-8705G
FCBGA-2049
Socket
BGA-2270
Arc Graphics 140T
Integrated Graphics
-
Package
3 nm
Manufacturing Process
14 nm
20-28 W
Power Consumption
0 W
115 W
Max Turbo Power Consumption
-
110 °C
Peak Operating Temperature
100 °C
CPU Performance
6
Performance Cores
4
6
Performance Core Threads
8
2.0 GHz
Performance Core Base Frequency
3.1 GHz
5.1 GHz
Performance Core Turbo Frequency
4.1 GHz
10
Efficiency Cores
-
10
Efficiency Core Threads
-
1.5 GHz
Efficiency Core Base Frequency
-
4.4 GHz
Efficiency Core Turbo Frequency
-
16
Total Core Count
4
16
Total Thread Count
8
100 MHz
Bus Frequency
100 MHz
20
Multiplier
31x
112 K per core
L1 Cache
64 K per core
2 MB per core
L2 Cache
256 K per core
24 MB shared
L3 Cache
8 MB shared
No
Unlocked Multiplier
No
Memory Parameters
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
Memory Types
DDR4-2400
128 GB
Max Memory Size
64 GB
2
Max Memory Channels
2
-
Max Memory Bandwidth
37.5 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
-
2250 MHz
GPU Max Dynamic Frequency
-
Miscellaneous
5.0
PCIe Version
3.0
28
PCIe Lanes
8
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2
