AMD Ryzen 9 7940HS vs AMD Ryzen 5 PRO 8640U

VS

AMD Ryzen 9 7940HS

AMD Ryzen 5 PRO 8640U

We compared two laptop CPUs: AMD Ryzen 9 7940HS with 8 cores 4.0GHz and AMD Ryzen 5 PRO 8640U 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 9 7940HS 's Advantages

Integrated graphics card

Higher specification of memory (7500 vs 5600)

Higher base frequency (4.0GHz vs 3.5GHz)

AMD Ryzen 5 PRO 8640U 's Advantages

Released 1 years late

Newer PCIe version (4 vs 4.0)

Lower TDP (28W vs 54W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7940HS +16%

1804

AMD Ryzen 5 PRO 8640U

1552

Cinebench R23 Multi Core

AMD Ryzen 9 7940HS +48%

15820

AMD Ryzen 5 PRO 8640U

10675

Geekbench 6 Single Core

AMD Ryzen 9 7940HS

2534

AMD Ryzen 5 PRO 8640U

2519

Geekbench 6 Multi Core

AMD Ryzen 9 7940HS +24%

12852

AMD Ryzen 5 PRO 8640U

10308

AMD Ryzen 9 7940HS

VS

AMD Ryzen 5 PRO 8640U

General Parameters

Apr 2023

Release Date

Apr 2024

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

-

Zen 4 (Phoenix)

Core Architecture

Hawk Point

FP8

Socket

AMD Socket FP7

Radeon 780M

Integrated Graphics

Radeon 760M

-

Generation

Ryzen 5 (Zen 4 (Hawk Point))

Package

25 billions

Transistor Count

25 billions

4 nm

Manufacturing Process

4 nm

35-54 W

Power Consumption

28 W

100°C

Peak Operating Temperature

-

Foundry

TSMC

-

Die Size

178 mm²

CPU Performance

8

Performance Cores

-

16

Performance Core Threads

-

4.0 GHz

Performance Core Base Frequency

3.5 GHz

5.2 GHz

Performance Core Turbo Frequency

4.9 GHz

8

Total Core Count

6

16

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

40x

Multiplier

35.0

64 K per core

L1 Cache

64 KB per core

8 MB

L2 Cache

1 MB per core

16 MB

L3 Cache

16 MB shared

No

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR5-5600, LPDDR5x-7500

Memory Types

DDR5-5600

256 GB

Max Memory Size

-

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

-

No

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

-

800 MHz

GPU Base Frequency

-

2800 MHz

GPU Max Dynamic Frequency

-

768

Shader Units

-

48

Texture Units

-

32

Raster Operation Units

-

12

Execution Units

-

15

Power Consumption

-

7680x4320 - 60 Hz

Max Resolution

-

8.12 TFLOPS

Graphics Performance

-

AI Accelerator

AMD Ryzen™ AI

NPU

-

10 TOPS

Theoretical performance

-

Miscellaneous

AMD Ryzen 9 7940HS

Official Website

-

4.0

PCIe Version

4

20

PCIe Lanes

20

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