Intel Core i7 8665U vs Intel Core i7 1355U

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We compared two laptop CPUs: Intel Core i7 8665U with 4 cores 1.9GHz and Intel Core i7 1355U with 10 cores 1.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 8665U 's Advantages

Higher base frequency (1.9GHz vs 1.7GHz)

Intel Core i7 1355U 's Advantages

Released 3 years and 9 months late

Better graphics card performance

Higher specification of memory (LPDDR5-6400 vs DDR4-2400)

Larger memory bandwidth (89.6GB/s vs 37.5GB/s)

Newer PCIe version (4.0 vs 3.0)

Larger L3 cache size (12MB vs 8MB)

More modern manufacturing process (10nm vs 14nm)

Lower TDP (12W vs 15W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 8665U

1264

Intel Core i7 1355U +42%

1806

Cinebench R23 Multi Core

Intel Core i7 8665U

3779

Intel Core i7 1355U +146%

9334

Geekbench 6 Single Core

Intel Core i7 8665U

1484

Intel Core i7 1355U +60%

2379

Geekbench 6 Multi Core

Intel Core i7 8665U

3939

Intel Core i7 1355U +101%

7945

Blender

Intel Core i7 8665U

37

Intel Core i7 1355U +205%

113

Geekbench 5 Single Core

Intel Core i7 8665U

1056

Intel Core i7 1355U +61%

1709

Geekbench 5 Multi Core

Intel Core i7 8665U

3056

Intel Core i7 1355U +174%

8398

Passmark CPU Single Core

Intel Core i7 8665U

2192

Intel Core i7 1355U +63%

3594

Passmark CPU Multi Core

Intel Core i7 8665U

6232

Intel Core i7 1355U +144%

15257

Intel Core i7 8665U

VS

Intel Core i7 1355U

General Parameters

Apr 2019

Release Date

Jan 2023

Intel

Manufacturer

Intel

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Whiskey Lake

Core Architecture

Raptor Lake

i7-8665U

Processor Number

i7-1355U

BGA-1528

Socket

BGA-1744

UHD Graphics 620

Integrated Graphics

Iris Xe Graphics (96EU)

Package

14 nm

Manufacturing Process

10 nm

BGA-1528

Socket

BGA-1744

15 W

Power Consumption

12-15 W

-

Max Turbo Power Consumption

55 W

100 °C

Peak Operating Temperature

100°C

CPU Performance

4

Performance Cores

2

8

Performance Core Threads

4

1.9 GHz

Performance Core Base Frequency

1.7 GHz

4.8 GHz

Performance Core Turbo Frequency

5 GHz

-

Efficiency Cores

8

-

Efficiency Core Threads

8

-

Efficiency Core Base Frequency

1.2 GHz

-

Efficiency Core Turbo Frequency

3.7 GHz

4

Total Core Count

10

8

Total Thread Count

12

-

Bus Frequency

100 MHz

19x

Multiplier

17x

32 K per core

L1 Cache

80 K per core

256 K per core

L2 Cache

1280 K per core

8 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR4-2400, LPDDR3-2133

Memory Types

DDR5-5200, DDR4-3200, LPDDR5-6400, LPDDR5x-6400, LPDDR4x-4267

64 GB

Max Memory Size

96 GB

2

Max Memory Channels

2

37.5 GB/s

Max Memory Bandwidth

89.6 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

300 MHz

GPU Base Frequency

300 MHz

1150 MHz

GPU Max Dynamic Frequency

1300 MHz

192

Shader Units

768

24

Texture Units

48

3

Raster Operation Units

24

Execution Units

96

15 W

Power Consumption

15 W

4096x2304 - 60 Hz

Max Resolution

-

0.38 TFLOPS

Graphics Performance

1.69 TFLOPS

Miscellaneous

Intel Core i7 8665U

Official Website

Intel Core i7 1355U

3.0

PCIe Version

4.0

16

PCIe Lanes

20

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

-

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