AMD Ryzen 3 5400U vs AMD Ryzen 5 8640HS

VS

AMD Ryzen 3 5400U

AMD Ryzen 5 8640HS

We compared two laptop CPUs: AMD Ryzen 3 5400U with 4 cores 2.6GHz and AMD Ryzen 5 8640HS with 6 cores 3.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 3 5400U 's Advantages

Lower TDP (25W vs 28W)

AMD Ryzen 5 8640HS 's Advantages

Released 2 years and 11 months late

Higher specification of memory (7500 vs 4266)

Larger memory bandwidth (89.6GB/s vs 51.2GB/s)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (3.5GHz vs 2.6GHz)

Larger L3 cache size (16MB vs 8MB)

More modern manufacturing process (4nm vs 7nm)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 3 5400U

1639

AMD Ryzen 5 8640HS +38%

2267

Geekbench 6 Multi Core

AMD Ryzen 3 5400U

4483

AMD Ryzen 5 8640HS +131%

10369

AMD Ryzen 3 5400U

VS

AMD Ryzen 5 8640HS

General Parameters

Jan 2021

Release Date

Dec 2023

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Cezanne

Core Architecture

Hawk Point

FP6

Socket

FP8

Radeon RX Vega 6

Integrated Graphics

Radeon 760M

-

Generation

Ryzen 5 (Zen 4 (Hawk Point))

Package

-

Transistor Count

25 billions

7 nm

Manufacturing Process

4 nm

10-25 W

Power Consumption

28 W

105 °C

Peak Operating Temperature

100°C

-

Foundry

TSMC

-

Die Size

178 mm²

CPU Performance

4

Performance Cores

6

8

Performance Core Threads

12

2.6 GHz

Performance Core Base Frequency

3.5 GHz

4 GHz

Performance Core Turbo Frequency

4.9 GHz

4

Total Core Count

6

8

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

26x

Multiplier

35x

64 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

1 MB per core

8 MB shared

L3 Cache

16 MB shared

No

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR4-3200, LPDDR4-4266

Memory Types

DDR5-5600, LPDDR5x-7500

32 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

51.2 GB/s

Max Memory Bandwidth

89.6 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

1500 MHz

1600 MHz

GPU Max Dynamic Frequency

2600 MHz

384

Shader Units

384

24

Texture Units

24

8

Raster Operation Units

16

-

Execution Units

6

15 W

Power Consumption

15 W

-

Max Resolution

7680x4320 - 60 Hz

-

Graphics Performance

4.06 TFLOPS

Miscellaneous

AMD Ryzen 3 5400U

Official Website

AMD Ryzen 5 8640HS

3.0

PCIe Version

4.0

12

PCIe Lanes

20

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