AMD Ryzen 5 PRO 8645HS vs AMD Ryzen 7 8840U

VS

AMD Ryzen 5 PRO 8645HS

AMD Ryzen 7 8840U

We compared two laptop CPUs: AMD Ryzen 5 PRO 8645HS with 6 cores 4.3GHz and AMD Ryzen 7 8840U with 8 cores 3.3GHz . 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

Higher base frequency (4.3GHz vs 3.3GHz)

AMD Ryzen 7 8840U 's Advantages

Higher specification of memory (7500 vs 7500)

Newer PCIe version (4.0 vs 4)

Lower TDP (30W vs 54W)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 5 PRO 8645HS

2478

AMD Ryzen 7 8840U

2468

Geekbench 6 Multi Core

AMD Ryzen 5 PRO 8645HS

10306

AMD Ryzen 7 8840U +11%

11498

AMD Ryzen 5 PRO 8645HS

VS

AMD Ryzen 7 8840U

General Parameters

Apr 2024

Release Date

Dec 2023

AMD

Manufacturer

AMD

Laptop

Type

Laptop

-

Instruction Set

x86-64

Hawk Point

Core Architecture

Zen 4 (Hawk Point)

AMD Socket FP7

Socket

FP8

Radeon 760M

Integrated Graphics

Radeon 780M

Ryzen 5 (Zen 4 (Hawk Point))

Generation

Ryzen 7 (Zen 4 (Hawk Point))

Package

25 billions

Transistor Count

25 billions

4 nm

Manufacturing Process

4 nm

35-54 W

Power Consumption

15-30 W

-

Peak Operating Temperature

100°C

TSMC

Foundry

TSMC

178 mm²

Die Size

178 mm²

CPU Performance

6

Performance Cores

8

12

Performance Core Threads

16

4.3 GHz

Performance Core Base Frequency

3.3 GHz

5 GHz

Performance Core Turbo Frequency

5.1 GHz

6

Total Core Count

8

12

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

43.0

Multiplier

33x

64 KB per core

L1 Cache

64 K per core

6 MB

L2 Cache

1 MB per core

16 MB

L3 Cache

16 MB shared

No

Unlocked Multiplier

No

1

SMP

1

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

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

1500 MHz

2600 MHz

GPU Max Dynamic Frequency

2700 MHz

-

Shader Units

768

-

Texture Units

48

-

Raster Operation Units

32

8

Execution Units

12

-

Power Consumption

15 W

-

Max Resolution

7680x4320 - 60 Hz

-

Graphics Performance

8.12 TFLOPS

AI Accelerator

AMD Ryzen™ AI

NPU

-

16 TOPS

Theoretical performance

-

Miscellaneous

AMD Ryzen 5 PRO 8645HS

Official Website

AMD Ryzen 7 8840U

4

PCIe Version

4.0

20

PCIe Lanes

20

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