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

VS

AMD Ryzen 7 PRO 7840U

AMD Ryzen 5 PRO 8640U

We compared two laptop CPUs: AMD Ryzen 7 PRO 7840U with 8 cores 3.3GHz 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 PRO 7840U 's Advantages

Integrated graphics card

Higher specification of memory (7500 vs 5600)

AMD Ryzen 5 PRO 8640U 's Advantages

Released 10 months late

Newer PCIe version (4 vs 4.0)

Higher base frequency (3.5GHz vs 3.3GHz)

Lower TDP (28W vs 30W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 7 PRO 7840U +13%

1755

AMD Ryzen 5 PRO 8640U

1552

Geekbench 6 Single Core

AMD Ryzen 7 PRO 7840U

2394

AMD Ryzen 5 PRO 8640U +5%

2519

Geekbench 6 Multi Core

AMD Ryzen 7 PRO 7840U +6%

11027

AMD Ryzen 5 PRO 8640U

10308

AMD Ryzen 7 PRO 7840U

VS

AMD Ryzen 5 PRO 8640U

General Parameters

Jun 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

15-30 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

-

3.3 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

33

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

-

2700 MHz

GPU Max Dynamic Frequency

-

768

Shader Units

-

48

Texture Units

-

32

Raster Operation Units

-

12

Execution Units

-

15 W

Power Consumption

-

7680x4320 - 60 Hz

Max Resolution

-

4.15 TFLOPS

Graphics Performance

-

AI Accelerator

AMD Ryzen™ AI

NPU

-

10 TOPS

Theoretical performance

-

Miscellaneous

AMD Ryzen 7 PRO 7840U

Official Website

-

4.0

PCIe Version

4

20

PCIe Lanes

20

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