AMD Ryzen 9 4900H vs AMD Ryzen 5 PRO 8640U

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We compared two laptop CPUs: AMD Ryzen 9 4900H 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 9 4900H 's Advantages

Integrated graphics card

Higher specification of memory (LPDDR4X-4266 vs DDR5-5600)

AMD Ryzen 5 PRO 8640U 's Advantages

Released 4 years and 1 months late

Newer PCIe version (4 vs 3.0)

Higher base frequency (3.5GHz vs 3.3GHz)

Larger L3 cache size (16MB vs 8MB)

More modern manufacturing process (4nm vs 7nm)

Lower TDP (28W vs 35W)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 9 4900H

1678

AMD Ryzen 5 PRO 8640U +50%

2519

Geekbench 6 Multi Core

AMD Ryzen 9 4900H

6103

AMD Ryzen 5 PRO 8640U +68%

10308

AMD Ryzen 9 4900H

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AMD Ryzen 5 PRO 8640U

General Parameters

Mar 2020

Release Date

Apr 2024

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

-

Zen 2

Core Architecture

Hawk Point

FP6

Socket

AMD Socket FP7

Radeon Vega 8

Integrated Graphics

Radeon 760M

-

Generation

Ryzen 5 (Zen 4 (Hawk Point))

Package

-

Transistor Count

25 billions

7 nm

Manufacturing Process

4 nm

FP6

Socket

AMD Socket FP7

35-54 W

Power Consumption

28 W

105 °C

Peak Operating Temperature

-

Foundry

TSMC

-

Die Size

178 mm²

-

Package

FP7, FP7r2

CPU Performance

8

Performance Cores

-

16

Performance Core Threads

-

3.3 GHz

Performance Core Base Frequency

3.5 GHz

4.4 GHz

Performance Core Turbo Frequency

4.9 GHz

8

Total Core Count

6

16

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

35.0

-

L1 Cache

64 KB per core

512 K per core

L2 Cache

1 MB per core

8 MB shared

L3 Cache

16 MB shared

No

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR4-3200, LPDDR4X-4266

Memory Types

DDR5-5600

64 GB

Max Memory Size

-

4

Max Memory Channels

2

68.27 GB/s

Max Memory Bandwidth

-

Yes

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

-

1750 MHz

GPU Max Dynamic Frequency

-

512

Shader Units

-

32

Texture Units

-

8

Raster Operation Units

-

15 W

Power Consumption

-

Miscellaneous

AMD Ryzen 9 4900H

Official Website

-

3.0

PCIe Version

4

16

PCIe Lanes

20

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