AMD Ryzen 9 7940HX vs Intel Core i7 8557U

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We compared two laptop CPUs: AMD Ryzen 9 7940HX with 16 cores 2.4GHz 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 9 7940HX's Advantages

Released 4 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 (2.4GHz vs 1.7GHz)

Larger L3 cache size (64MB vs 8MB)

Intel Core i7 8557U's Advantages

Better graphics card performance

Lower TDP (15W vs 55W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7940HX +59%

1882

Intel Core i7 8557U

1180

Cinebench R23 Multi Core

AMD Ryzen 9 7940HX +624%

33284

Intel Core i7 8557U

4595

Geekbench 6 Single Core

AMD Ryzen 9 7940HX +204%

2688

Intel Core i7 8557U

884

Geekbench 6 Multi Core

AMD Ryzen 9 7940HX +386%

15655

Intel Core i7 8557U

3216

AMD Ryzen 9 7940HX

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Intel Core i7 8557U

General Parameters

Jan 2024

Release Date

Jul 2019

AMD

Manufacturer

Intel

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Dragon Range)

Core Architecture

Coffee Lake

-

Processor Number

i7-8557U

AMD Socket FL1

Socket

BGA-1528

Radeon 610M

Integrated Graphics

Iris Plus Graphics 645

Package

13.14 billions

Transistor Count

-

5 nm

Manufacturing Process

14 nm

AMD Socket FL1

Socket

BGA-1528

55 W

Power Consumption

15 W

100°C

Peak Operating Temperature

100 °C

CPU Performance

16

Performance Cores

4

32

Performance Core Threads

8

2.4 GHz

Performance Core Base Frequency

1.7 GHz

5.2 GHz

Performance Core Turbo Frequency

4.5 GHz

16

Total Core Count

4

32

Total Thread Count

8

100MHz

Bus Frequency

-

24

Multiplier

17x

64K per core

L1 Cache

32K per core

1MB per core

L2 Cache

256K per core

64MB

L3 Cache

8MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR5-5200

Memory Types

DDR4-2400, LPDDR3-2133

64GB

Max Memory Size

32GB

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

37.5 GB/s

-

ECC Memory Support

No

Graphics Card Parameters

True

Integrated Graphics

True

400 MHz

GPU Base Frequency

300 MHz

2200 MHz

GPU Max Dynamic Frequency

1150 MHz

128

Shader Units

384

8

Texture Units

48

4

Raster Operation Units

6

2

Execution Units

48

15 W

Power Consumption

15 W

-

Max Resolution

4096x2304 - 60 Hz

0.563 TFLOPS

Graphics Performance

0.81 TFLOPS

Miscellaneous

Official Website

Intel Core i7 8557U

5.0

PCIe Version

3.0

28

PCIe Lanes

16

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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