AMD Ryzen 5 PRO 8645HS vs AMD Ryzen 9 7945HX3D

VS

AMD Ryzen 5 PRO 8645HS

AMD Ryzen 9 7945HX3D

We compared two laptop CPUs: AMD Ryzen 5 PRO 8645HS with 6 cores 4.3GHz and AMD Ryzen 9 7945HX3D with 16 cores 2.3GHz . 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 9 months late

Higher specification of memory (7500 vs 5200)

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

Higher base frequency (4.3GHz vs 2.3GHz)

More modern manufacturing process (4nm vs 5nm)

Lower TDP (54W vs 55W)

AMD Ryzen 9 7945HX3D 's Advantages

Newer PCIe version (5 vs 4)

Larger L3 cache size (128MB vs 16MB)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 5 PRO 8645HS

2478

AMD Ryzen 9 7945HX3D +12%

2783

Geekbench 6 Multi Core

AMD Ryzen 5 PRO 8645HS

10306

AMD Ryzen 9 7945HX3D +56%

16080

AMD Ryzen 5 PRO 8645HS

VS

AMD Ryzen 9 7945HX3D

General Parameters

Apr 2024

Release Date

Jul 2023

AMD

Manufacturer

AMD

Laptop

Type

Laptop

Hawk Point

Core Architecture

Dragon Range

AMD Socket FP7

Socket

AMD Socket FL1

Radeon 760M

Integrated Graphics

Radeon 610M

Ryzen 5 (Zen 4 (Hawk Point))

Generation

Ryzen 9 (Zen 4 (Dragon Range))

Package

25 billions

Transistor Count

17.84 billions

4 nm

Manufacturing Process

5 nm

35-54 W

Power Consumption

55 W

-

Peak Operating Temperature

89 °C

TSMC

Foundry

TSMC

178 mm²

Die Size

2x71 mm²

-

I/O Process Size

6 nm

-

I/O Die Size

122 mm²

CPU Performance

6

Performance Cores

-

12

Performance Core Threads

-

4.3 GHz

Performance Core Base Frequency

2.3 GHz

5 GHz

Performance Core Turbo Frequency

5.4 GHz

6

Total Core Count

16

12

Total Thread Count

32

100 MHz

Bus Frequency

100 MHz

43.0

Multiplier

23.0

64 KB per core

L1 Cache

64 KB per core

6 MB

L2 Cache

1 MB per core

16 MB

L3 Cache

128 MB shared

No

Unlocked Multiplier

Yes

1

SMP

1

Memory Parameters

DDR5-5600,LPDDR5x-7500

Memory Types

DDR5-5200

256 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

83.2 GB/s

Yes

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

true

2600 MHz

GPU Max Dynamic Frequency

2200 MHz

8

Execution Units

2

-

Graphics Performance

0.49 TFLOPS

AI Accelerator

AMD Ryzen™ AI

NPU

-

16 TOPS

Theoretical performance

-

Miscellaneous

AMD Ryzen 5 PRO 8645HS

Official Website

AMD Ryzen 9 7945HX3D

4

PCIe Version

5

20

PCIe Lanes

28

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