Intel Core i7 8557U vs AMD Ryzen 5 7645HX

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We compared two laptop CPUs: Intel Core i7 8557U with 4 cores 1.7GHz and AMD Ryzen 5 7645HX with 6 cores 4.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 8557U 's Advantages

Better graphics card performance

Lower TDP (15W vs 45W)

AMD Ryzen 5 7645HX 's Advantages

Released 3 years and 6 months late

Higher specification of memory (DDR5-5200 vs DDR4-2400)

Larger memory bandwidth (83.2GB/s vs 37.5GB/s)

Newer PCIe version (5.0 vs 3.0)

Higher base frequency (4.0GHz vs 1.7GHz)

Larger L3 cache size (32MB vs 8MB)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 8557U

1180

AMD Ryzen 5 7645HX +54%

1827

Cinebench R23 Multi Core

Intel Core i7 8557U

4595

AMD Ryzen 5 7645HX +206%

14098

Geekbench 6 Single Core

Intel Core i7 8557U

884

AMD Ryzen 5 7645HX +207%

2720

Geekbench 6 Multi Core

Intel Core i7 8557U

3216

AMD Ryzen 5 7645HX +270%

11906

Geekbench 5 Single Core

Intel Core i7 8557U

1031

AMD Ryzen 5 7645HX +83%

1895

Geekbench 5 Multi Core

Intel Core i7 8557U

3935

AMD Ryzen 5 7645HX +183%

11141

Intel Core i7 8557U

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AMD Ryzen 5 7645HX

General Parameters

Jul 2019

Release Date

Jan 2023

Intel

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Zen 4 (Dragon Range)

i7-8557U

Processor Number

-

BGA-1528

Socket

FL1

Iris Plus Graphics 645

Integrated Graphics

Radeon 610M

Package

14 nm

Manufacturing Process

5 nm

BGA-1528

Socket

FL1

15 W

Power Consumption

45-75 W

100 °C

Peak Operating Temperature

100°C

CPU Performance

4

Performance Cores

6

8

Performance Core Threads

12

1.7 GHz

Performance Core Base Frequency

4.0 GHz

4.5 GHz

Performance Core Turbo Frequency

5 GHz

4

Total Core Count

6

8

Total Thread Count

12

-

Bus Frequency

100 MHz

17x

Multiplier

40x

32 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

1 MB per core

8 MB shared

L3 Cache

32 MB shared

No

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2400, LPDDR3-2133

Memory Types

DDR5-5200

32 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

37.5 GB/s

Max Memory Bandwidth

83.2 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

300 MHz

GPU Base Frequency

1500 MHz

1150 MHz

GPU Max Dynamic Frequency

2200 MHz

384

Shader Units

128

48

Texture Units

8

6

Raster Operation Units

4

48

Execution Units

2

15 W

Power Consumption

15 W

4096x2304 - 60 Hz

Max Resolution

-

0.81 TFLOPS

Graphics Performance

0.49 TFLOPS

Miscellaneous

Intel Core i7 8557U

Official Website

AMD Ryzen 5 7645HX

3.0

PCIe Version

5.0

16

PCIe Lanes

28

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

-

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