Intel Core Ultra 7 255HX vs Intel Core i7 8705G

VS

Intel Core Ultra 7 255HX

Intel Core i7 8705G

We compared two laptop CPUs: Intel Core Ultra 7 255HX with 20 cores 2.4GHz 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 255HX 's Advantages

Released 7 years late

Integrated graphics card

Higher specification of memory (6400 vs 2400)

Larger memory bandwidth (102.4GB/s vs 37.5GB/s)

Newer PCIe version (5 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 2.4GHz)

Score

Intel Core Ultra 7 255HX

VS

Intel Core i7 8705G

General Parameters

Jan 2025

Release Date

Jan 2018

Intel

Manufacturer

Intel

Laptop

Type

Laptop

-

Instruction Set

x86-64

Arrow Lake

Core Architecture

Kaby Lake G

-

Processor Number

i7-8705G

Intel Socket 1851

Socket

BGA-2270

Arc Xe-LPG

Integrated Graphics

-

Ultra 7 (Arrow Lake)

Generation

-

Package

3 nm

Manufacturing Process

14 nm

17-55 W

Power Consumption

0 W

100 °C

Peak Operating Temperature

100 °C

Intel

Foundry

-

CPU Performance

8

Performance Cores

4

8

Performance Core Threads

8

2.4 GHz

Performance Core Base Frequency

3.1 GHz

5.2 GHz

Performance Core Turbo Frequency

4.1 GHz

12

Efficiency Cores

-

12

Efficiency Core Threads

-

1.8 GHz

Efficiency Core Base Frequency

-

4.5 GHz

Efficiency Core Turbo Frequency

-

20

Total Core Count

4

20

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

24

Multiplier

31x

112 KB per core

L1 Cache

64 K per core

23 MB

L2 Cache

256 K per core

24 MB shared

L3 Cache

8 MB shared

No

Unlocked Multiplier

No

1

SMP

-

Memory Parameters

DDR5-6400

Memory Types

DDR4-2400

256 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

102.4 GB/s

Max Memory Bandwidth

37.5 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

-

1900 MHz

GPU Max Dynamic Frequency

-

64

Execution Units

-

Miscellaneous

Official Website

Intel Core i7 8705G

5

PCIe Version

3.0

PCIe Lanes

8

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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