AMD Ryzen 7 7840H vs AMD Ryzen 5 PRO 8640U

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We compared two laptop CPUs: AMD Ryzen 7 7840H with 8 cores 3.8GHz 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 7 7840H 's Advantages

Integrated graphics card

Higher base frequency (3.8GHz vs 3.5GHz)

AMD Ryzen 5 PRO 8640U 's Advantages

Released 1 years and 3 months late

Lower TDP (28W vs 35W)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 7 7840H +4%

2625

AMD Ryzen 5 PRO 8640U

2519

Geekbench 6 Multi Core

AMD Ryzen 7 7840H +14%

11813

AMD Ryzen 5 PRO 8640U

10308

AMD Ryzen 7 7840H

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AMD Ryzen 5 PRO 8640U

General Parameters

Jan 2023

Release Date

Apr 2024

AMD

Manufacturer

AMD

Laptop

Type

Laptop

Phoenix

Core Architecture

Hawk Point

AMD Socket FP8

Socket

AMD Socket FP7

Radeon 780M

Integrated Graphics

Radeon 760M

Ryzen 7 (Zen 4 (Phoenix))

Generation

Ryzen 5 (Zen 4 (Hawk Point))

Package

25 billions

Transistor Count

25 billions

4 nm

Manufacturing Process

4 nm

AMD Socket FP8

Socket

AMD Socket FP7

35 W

Power Consumption

28 W

100 °C

Peak Operating Temperature

-

TSMC

Foundry

TSMC

178 mm²

Die Size

178 mm²

FP8, FP7, FP7r2

Package

FP7, FP7r2

CPU Performance

3.8 GHz

Performance Core Base Frequency

3.5 GHz

5.1 GHz

Performance Core Turbo Frequency

4.9 GHz

8

Total Core Count

6

16

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

38.0

Multiplier

35.0

64 K per core

L1 Cache

64 KB per core

1 MB per core

L2 Cache

1 MB per core

16 MB shared

L3 Cache

16 MB shared

No

Unlocked Multiplier

No

1

SMP

1

Memory Parameters

DDR5-5600

Memory Types

DDR5-5600

256 GB

Max Memory Size

-

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

-

Yes

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

-

2700 MHz

GPU Max Dynamic Frequency

-

12

Execution Units

-

10 TFLOPS

Graphics Performance

-

Miscellaneous

AMD Ryzen 7 7840H

Official Website

-

4

PCIe Version

4

20

PCIe Lanes

20

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