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

VS

AMD Ryzen 5 8645HS

AMD Ryzen 9 Pro 7940HS

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

Released 6 months late

Higher base frequency (4.3GHz vs 4.0GHz)

AMD Ryzen 9 Pro 7940HS 's Advantages

Better graphics card performance

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 5 8645HS

2455

AMD Ryzen 9 Pro 7940HS +5%

2582

Geekbench 6 Multi Core

AMD Ryzen 5 8645HS

10287

AMD Ryzen 9 Pro 7940HS +10%

11415

AMD Ryzen 5 8645HS

VS

AMD Ryzen 9 Pro 7940HS

General Parameters

Dec 2023

Release Date

Jun 2023

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Hawk Point)

Core Architecture

Zen 4 (Phoenix)

FP8

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

35-54 W

Power Consumption

35-54 W

100°C

Peak Operating Temperature

100°C

TSMC

Foundry

-

178 mm²

Die Size

-

CPU Performance

6

Performance Cores

8

12

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

100 MHz

Bus Frequency

100 MHz

43x

Multiplier

40

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

8 MB

16 MB shared

L3 Cache

16 MB

No

Unlocked Multiplier

No

1

SMP

-

Memory Parameters

DDR5-5600, LPDDR5x-7500

Memory Types

DDR5-5600, LPDDR5x-7500

256 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

89.6 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

800 MHz

GPU Base Frequency

800 MHz

2600 MHz

GPU Max Dynamic Frequency

2800 MHz

512

Shader Units

768

32

Texture Units

48

16

Raster Operation Units

32

8

Execution Units

12

15 W

Power Consumption

15

-

Max Resolution

7680x4320 - 60 Hz

2.66 TFLOPS

Graphics Performance

8.12 TFLOPS

AI Accelerator

-

NPU

AMD Ryzen™ AI

-

Theoretical performance

10 TOPS

Miscellaneous

AMD Ryzen 5 8645HS official page

Official Website

AMD Ryzen 9 Pro 7940HS

4.0

PCIe Version

4.0

20

PCIe Lanes

20

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