AMD Ryzen 5 PRO 8645HS vs AMD Ryzen 9 7940HS

VS

AMD Ryzen 5 PRO 8645HS AMD Ryzen 9 7940HS

We compared two laptop CPUs: AMD Ryzen 5 PRO 8645HS with 6 cores 4.3GHz and AMD Ryzen 9 7940HS with 8 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 8645HS's Advantages

Released 1 years and 3 months late

Higher base frequency (4.3GHz vs 4.0GHz)

AMD Ryzen 9 7940HS's Advantages

Integrated graphics card

Higher specification of memory (LPDDR5x-7500 vs DDR5-5600)

Newer PCIe version (4.0 vs 4)

Lower TDP (35W vs 45W)

Score

AMD Ryzen 5 PRO 8645HS

VS

AMD Ryzen 9 7940HS

General Parameters

Apr 2024

Release Date

Jan 2023

AMD

Manufacturer

Amd

Laptop

Type

Laptop

-

Instruction Set

x86-64

Hawk Point

Core Architecture

Zen 4 (Phoenix)

AMD Socket FP7

Socket

FP8

Radeon 760M

Integrated Graphics

Radeon 780M

Ryzen 5 (Zen 4 (Hawk Point))

Generation

-

Package

25 billions

Transistor Count

25 billions

4 nm

Manufacturing Process

4 nm

AMD Socket FP7

Socket

FP8

45 W

Power Consumption

35-54 W

-

Peak Operating Temperature

100°C

TSMC

Foundry

-

178 mm²

Die Size

-

FP7, FP7r2

Package

-

CPU Performance

-

Performance Cores

8

-

Performance Core Threads

16

4.3 GHz

Performance Core Base Frequency

4.0 GHz

5 GHz

Performance Core Turbo Frequency

5.2 GHz

6

Total Core Count

8

12

Total Thread Count

16

100MHz

Bus Frequency

100MHz

43.0

Multiplier

40x

64 KB per core

L1 Cache

64K per core

1 MB per core

L2 Cache

1MB per core

16 MB shared

L3 Cache

16MB shared

No

Unlocked Multiplier

No

1

SMP

-

Memory Parameters

DDR5-5600

Memory Types

DDR5-5600, LPDDR5x-7500

-

Max Memory Size

256GB

2

Max Memory Channels

2

-

Max Memory Bandwidth

89.6 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

True

-

GPU Base Frequency

800 MHz

-

GPU Max Dynamic Frequency

2800 MHz

-

Shader Units

768

-

Texture Units

48

-

Raster Operation Units

32

-

Execution Units

12

-

Power Consumption

15 W

-

Max Resolution

7680x4320 - 60 Hz

-

Graphics Performance

8.12 TFLOPS

Miscellaneous

AMD Ryzen 5 PRO 8645HS

Official Website

AMD Ryzen 9 7940HS

4

PCIe Version

4.0

20

PCIe Lanes

20

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