AMD Ryzen 7 7840H vs Intel Core i7 8557U

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We compared two laptop CPUs: AMD Ryzen 7 7840H with 8 cores 3.8GHz and Intel Core i7 8557U with 4 cores 1.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 7 7840H 's Advantages

Released 3 years and 6 months late

Better graphics card performance

Higher specification of memory (DDR5-5600 vs DDR4-2400)

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

Newer PCIe version (4 vs 3.0)

Higher base frequency (3.8GHz vs 1.7GHz)

Larger L3 cache size (16MB vs 8MB)

Intel Core i7 8557U 's Advantages

Lower TDP (15W vs 35W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 7 7840H +52%

1800

Intel Core i7 8557U

1180

Cinebench R23 Multi Core

AMD Ryzen 7 7840H +289%

17887

Intel Core i7 8557U

4595

Geekbench 6 Single Core

AMD Ryzen 7 7840H +196%

2625

Intel Core i7 8557U

884

Geekbench 6 Multi Core

AMD Ryzen 7 7840H +267%

11813

Intel Core i7 8557U

3216

Geekbench 5 Single Core

AMD Ryzen 7 7840H +85%

1909

Intel Core i7 8557U

1031

Geekbench 5 Multi Core

AMD Ryzen 7 7840H +192%

11494

Intel Core i7 8557U

3935

Passmark CPU Single Core

AMD Ryzen 7 7840H +57%

3947

Intel Core i7 8557U

2510

Passmark CPU Multi Core

AMD Ryzen 7 7840H +258%

28248

Intel Core i7 8557U

7875

AMD Ryzen 7 7840H

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Intel Core i7 8557U

General Parameters

Jan 2023

Release Date

Jul 2019

AMD

Manufacturer

Intel

Laptop

Type

Laptop

-

Instruction Set

x86-64

Phoenix

Core Architecture

Coffee Lake

-

Processor Number

i7-8557U

AMD Socket FP8

Socket

BGA-1528

Radeon 780M

Integrated Graphics

Iris Plus Graphics 645

Ryzen 7 (Zen 4 (Phoenix))

Generation

-

Package

25 billions

Transistor Count

-

4 nm

Manufacturing Process

14 nm

AMD Socket FP8

Socket

BGA-1528

35 W

Power Consumption

15 W

100 °C

Peak Operating Temperature

100 °C

TSMC

Foundry

-

178 mm²

Die Size

-

FP8, FP7, FP7r2

Package

-

CPU Performance

-

Performance Cores

4

-

Performance Core Threads

8

3.8 GHz

Performance Core Base Frequency

1.7 GHz

5.1 GHz

Performance Core Turbo Frequency

4.5 GHz

8

Total Core Count

4

16

Total Thread Count

8

100 MHz

Bus Frequency

-

38.0

Multiplier

17x

64 K per core

L1 Cache

32 K per core

1 MB per core

L2 Cache

256 K per core

16 MB shared

L3 Cache

8 MB shared

No

Unlocked Multiplier

No

1

SMP

-

Memory Parameters

DDR5-5600

Memory Types

DDR4-2400, LPDDR3-2133

256 GB

Max Memory Size

32 GB

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

37.5 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

300 MHz

2700 MHz

GPU Max Dynamic Frequency

1150 MHz

-

Shader Units

384

-

Texture Units

48

-

Raster Operation Units

6

12

Execution Units

48

-

Power Consumption

15 W

-

Max Resolution

4096x2304 - 60 Hz

10 TFLOPS

Graphics Performance

0.81 TFLOPS

Miscellaneous

AMD Ryzen 7 7840H

Official Website

Intel Core i7 8557U

4

PCIe Version

3.0

20

PCIe Lanes

16

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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