AMD Ryzen 9 7945HX3D vs AMD Ryzen 5 PRO 8640HS

VS

AMD Ryzen 9 7945HX3D

AMD Ryzen 5 PRO 8640HS

We compared two laptop CPUs: AMD Ryzen 9 7945HX3D with 16 cores 2.3GHz 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 9 7945HX3D 's Advantages

Newer PCIe version (5 vs 4)

Larger L3 cache size (128MB vs 16MB)

AMD Ryzen 5 PRO 8640HS 's Advantages

Released 9 months late

Higher specification of memory (7500 vs 5200)

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

Higher base frequency (3.5GHz vs 2.3GHz)

More modern manufacturing process (4nm vs 5nm)

Lower TDP (30W vs 55W)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 9 7945HX3D +14%

2783

AMD Ryzen 5 PRO 8640HS

2432

Geekbench 6 Multi Core

AMD Ryzen 9 7945HX3D +65%

16080

AMD Ryzen 5 PRO 8640HS

9739

AMD Ryzen 9 7945HX3D

VS

AMD Ryzen 5 PRO 8640HS

General Parameters

Jul 2023

Release Date

Apr 2024

AMD

Manufacturer

AMD

Laptop

Type

Laptop

Dragon Range

Core Architecture

Hawk Point

AMD Socket FL1

Socket

AMD Socket FP7

Radeon 610M

Integrated Graphics

Radeon 760M

Ryzen 9 (Zen 4 (Dragon Range))

Generation

Ryzen 5 (Zen 4 (Hawk Point))

Package

17.84 billions

Transistor Count

25 billions

5 nm

Manufacturing Process

4 nm

55 W

Power Consumption

20-30 W

89 °C

Peak Operating Temperature

-

TSMC

Foundry

TSMC

2x71 mm²

Die Size

178 mm²

6 nm

I/O Process Size

-

122 mm²

I/O Die Size

-

CPU Performance

-

Performance Cores

6

-

Performance Core Threads

12

2.3 GHz

Performance Core Base Frequency

3.5 GHz

5.4 GHz

Performance Core Turbo Frequency

4.9 GHz

16

Total Core Count

6

32

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

23.0

Multiplier

35.0

64 KB per core

L1 Cache

64 KB per core

1 MB per core

L2 Cache

6 MB

128 MB shared

L3 Cache

16 MB

Yes

Unlocked Multiplier

No

1

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

Yes

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

MHz

2200 MHz

GPU Max Dynamic Frequency

2600 MHz

2

Execution Units

8

0.49 TFLOPS

Graphics Performance

-

AI Accelerator

-

NPU

AMD Ryzen™ AI

-

Theoretical performance

16 TOPS

Miscellaneous

AMD Ryzen 9 7945HX3D

Official Website

AMD Ryzen 5 PRO 8640HS

5

PCIe Version

4

28

PCIe Lanes

20

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