AMD Ryzen 5 PRO 8640HS vs AMD Ryzen 5 7645HX

VS

AMD Ryzen 5 PRO 8640HS

AMD Ryzen 5 7645HX

We compared two laptop CPUs: AMD Ryzen 5 PRO 8640HS with 6 cores 3.5GHz 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

AMD Ryzen 5 PRO 8640HS 's Advantages

Released 1 years and 3 months late

Higher specification of memory (7500 vs 5200)

Larger memory bandwidth (89.6GB/s vs 83.2GB/s)

More modern manufacturing process (4nm vs 5nm)

Lower TDP (30W vs 75W)

AMD Ryzen 5 7645HX 's Advantages

Newer PCIe version (5.0 vs 4)

Higher base frequency (4.0GHz vs 3.5GHz)

Larger L3 cache size (32MB vs 16MB)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 5 PRO 8640HS

2432

AMD Ryzen 5 7645HX +11%

2720

Geekbench 6 Multi Core

AMD Ryzen 5 PRO 8640HS

9739

AMD Ryzen 5 7645HX +22%

11906

AMD Ryzen 5 PRO 8640HS

VS

AMD Ryzen 5 7645HX

General Parameters

Apr 2024

Release Date

Jan 2023

AMD

Manufacturer

AMD

Laptop

Type

Laptop

-

Instruction Set

x86-64

Hawk Point

Core Architecture

Zen 4 (Dragon Range)

AMD Socket FP7

Socket

FL1

Radeon 760M

Integrated Graphics

Radeon 610M

Ryzen 5 (Zen 4 (Hawk Point))

Generation

-

Package

25 billions

Transistor Count

-

4 nm

Manufacturing Process

5 nm

20-30 W

Power Consumption

45-75 W

-

Peak Operating Temperature

100°C

TSMC

Foundry

-

178 mm²

Die Size

-

CPU Performance

6

Performance Cores

6

12

Performance Core Threads

12

3.5 GHz

Performance Core Base Frequency

4.0 GHz

4.9 GHz

Performance Core Turbo Frequency

5 GHz

6

Total Core Count

6

12

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

35.0

Multiplier

40x

64 KB per core

L1 Cache

64 K per core

6 MB

L2 Cache

1 MB per core

16 MB

L3 Cache

32 MB shared

No

Unlocked Multiplier

Yes

1

SMP

-

Memory Parameters

DDR5-5600,LPDDR5x-7500

Memory Types

DDR5-5200

256 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

83.2 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

MHz

GPU Base Frequency

1500 MHz

2600 MHz

GPU Max Dynamic Frequency

2200 MHz

-

Shader Units

128

-

Texture Units

8

-

Raster Operation Units

4

8

Execution Units

2

-

Power Consumption

15 W

-

Graphics Performance

0.49 TFLOPS

AI Accelerator

AMD Ryzen™ AI

NPU

-

16 TOPS

Theoretical performance

-

Miscellaneous

AMD Ryzen 5 PRO 8640HS

Official Website

AMD Ryzen 5 7645HX

4

PCIe Version

5.0

20

PCIe Lanes

28

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