Intel Core i7 1355U vs Intel Core i5 1240U

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We compared two laptop CPUs: Intel Core i7 1355U with 10 cores 1.7GHz and Intel Core i5 1240U with 10 cores 1.1GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 1355U 's Advantages

Released 11 months late

Better graphics card performance

Higher specification of memory (LPDDR5-6400 vs LPDDR5-5200)

Larger memory bandwidth (89.6GB/s vs 76.8GB/s)

Higher base frequency (1.7GHz vs 1.1GHz)

Intel Core i5 1240U 's Advantages

Lower TDP (9W vs 12W)

Score

Benchmark

Geekbench 6 Single Core

Intel Core i7 1355U +7%

2379

Intel Core i5 1240U

2213

Geekbench 6 Multi Core

Intel Core i7 1355U +4%

7945

Intel Core i5 1240U

7583

Geekbench 5 Single Core

Intel Core i7 1355U +4%

1709

Intel Core i5 1240U

1639

Geekbench 5 Multi Core

Intel Core i7 1355U +31%

8398

Intel Core i5 1240U

6388

Passmark CPU Single Core

Intel Core i7 1355U +11%

3594

Intel Core i5 1240U

3223

Passmark CPU Multi Core

Intel Core i7 1355U +6%

15257

Intel Core i5 1240U

14269

Intel Core i7 1355U

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Intel Core i5 1240U

General Parameters

Jan 2023

Release Date

Feb 2022

Intel

Manufacturer

Intel

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Raptor Lake

Core Architecture

Alder Lake-U

i7-1355U

Processor Number

i5-1240U

BGA-1744

Socket

BGA-1781

Iris Xe Graphics (96EU)

Integrated Graphics

Iris Xe Graphics G7 (80EU)

Package

10 nm

Manufacturing Process

10 nm

BGA-1744

Socket

BGA-1781

12-15 W

Power Consumption

9 W

55 W

Max Turbo Power Consumption

-

100°C

Peak Operating Temperature

100 °C

CPU Performance

2

Performance Cores

2

4

Performance Core Threads

-

1.7 GHz

Performance Core Base Frequency

1.1 GHz

5 GHz

Performance Core Turbo Frequency

4.4 GHz

8

Efficiency Cores

8

Efficiency Core Threads

-

1.2 GHz

Efficiency Core Base Frequency

-

3.7 GHz

Efficiency Core Turbo Frequency

-

10

Total Core Count

10

12

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

17x

Multiplier

11x

80 K per core

L1 Cache

80 K per core

1280 K per core

L2 Cache

1280 K per core

12 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

Memory Parameters

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

Memory Types

LPDDR5-5200, LPDDR4x-4267

96 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

76.8 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

300 MHz

GPU Base Frequency

300 MHz

1300 MHz

GPU Max Dynamic Frequency

900 MHz

768

Shader Units

640

48

Texture Units

40

24

Raster Operation Units

20

96

Execution Units

80

15 W

Power Consumption

15 W

1.69 TFLOPS

Graphics Performance

1.41 TFLOPS

Miscellaneous

Intel Core i7 1355U

Official Website

Intel Core i5 1240U

4.0

PCIe Version

4.0

20

PCIe Lanes

14

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