AMD Ryzen 5 8640U vs AMD Ryzen 3 Pro 5450U

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We compared two laptop CPUs: AMD Ryzen 5 8640U with 6 cores 3.5GHz and AMD Ryzen 3 Pro 5450U with 4 cores 2.6GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 5 8640U 's Advantages

Released 2 years and 9 months late

Higher specification of memory (LPDDR5x-7500 vs LPDDR4-4266)

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)

Lower TDP (15W vs 15W)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 5 8640U +49%

2419

AMD Ryzen 3 Pro 5450U

1618

Geekbench 6 Multi Core

AMD Ryzen 5 8640U +113%

10350

AMD Ryzen 3 Pro 5450U

4858

AMD Ryzen 5 8640U

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AMD Ryzen 3 Pro 5450U

General Parameters

Dec 2023

Release Date

Mar 2021

Amd

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Hawk Point

Core Architecture

Cezanne U

FP7

Socket

FP6

Radeon 760M

Integrated Graphics

Radeon RX Vega 6

Ryzen 5 (Zen 4 (Hawk Point))

Generation

-

Package

25 billions

Transistor Count

-

4 nm

Manufacturing Process

7 nm

FP7

Socket

FP6

15-30 W

Power Consumption

15 W

100°C

Peak Operating Temperature

105 °C

TSMC

Foundry

-

178 mm²

Die Size

-

FP8, FP7, FP7r2

Package

-

CPU Performance

6

Performance Cores

4

12

Performance Core Threads

8

3.5 GHz

Performance Core Base Frequency

2.6 GHz

4.9 GHz

Performance Core Turbo Frequency

4 GHz

6

Total Core Count

4

12

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

35x

Multiplier

26x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

512 K per core

16 MB shared

L3 Cache

8 MB shared

No

Unlocked Multiplier

No

1

SMP

-

Memory Parameters

DDR5-5600, LPDDR5x-7500

Memory Types

DDR4-3200, LPDDR4-4266

256 GB

Max Memory Size

32 GB

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

51.2 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

1500 MHz

GPU Base Frequency

-

2600 MHz

GPU Max Dynamic Frequency

1600 MHz

384

Shader Units

384

24

Texture Units

24

16

Raster Operation Units

8

6

Execution Units

-

15 W

Power Consumption

15 W

4.06 TFLOPS

Graphics Performance

-

Miscellaneous

AMD Ryzen 5 8640U

Official Website

AMD Ryzen 3 Pro 5450U

4.0

PCIe Version

3.0

20

PCIe Lanes

12

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