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

VS

AMD Ryzen 5 7645HX

AMD Ryzen 5 PRO 8640HS

We compared two laptop CPUs: AMD Ryzen 5 7645HX with 6 cores 4.0GHz and AMD Ryzen 5 PRO 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 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)

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)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 5 7645HX +11%

2720

AMD Ryzen 5 PRO 8640HS

2432

Geekbench 6 Multi Core

AMD Ryzen 5 7645HX +22%

11906

AMD Ryzen 5 PRO 8640HS

9739

AMD Ryzen 5 7645HX

VS

AMD Ryzen 5 PRO 8640HS

General Parameters

Jan 2023

Release Date

Apr 2024

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

-

Zen 4 (Dragon Range)

Core Architecture

Hawk Point

FL1

Socket

AMD Socket FP7

Radeon 610M

Integrated Graphics

Radeon 760M

-

Generation

Ryzen 5 (Zen 4 (Hawk Point))

Package

-

Transistor Count

25 billions

5 nm

Manufacturing Process

4 nm

45-75 W

Power Consumption

20-30 W

100°C

Peak Operating Temperature

-

Foundry

TSMC

-

Die Size

178 mm²

CPU Performance

6

Performance Cores

6

12

Performance Core Threads

12

4.0 GHz

Performance Core Base Frequency

3.5 GHz

5 GHz

Performance Core Turbo Frequency

4.9 GHz

6

Total Core Count

6

12

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

40x

Multiplier

35.0

64 K per core

L1 Cache

64 KB per core

1 MB per core

L2 Cache

6 MB

32 MB shared

L3 Cache

16 MB

Yes

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR5-5200

Memory Types

DDR5-5600,LPDDR5x-7500

64 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

89.6 GB/s

No

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

true

1500 MHz

GPU Base Frequency

MHz

2200 MHz

GPU Max Dynamic Frequency

2600 MHz

128

Shader Units

-

8

Texture Units

-

4

Raster Operation Units

-

2

Execution Units

8

15 W

Power Consumption

-

0.49 TFLOPS

Graphics Performance

-

AI Accelerator

-

NPU

AMD Ryzen™ AI

-

Theoretical performance

16 TOPS

Miscellaneous

AMD Ryzen 5 7645HX

Official Website

AMD Ryzen 5 PRO 8640HS

5.0

PCIe Version

4

28

PCIe Lanes

20

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