AMD Ryzen 9 5900HX vs AMD Ryzen 7 7840H

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We compared two laptop CPUs: AMD Ryzen 9 5900HX with 8 cores 3.3GHz and AMD Ryzen 7 7840H with 8 cores 3.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 5900HX 's Advantages

Higher specification of memory (LPDDR4-4266 vs DDR5-5600)

Lower TDP (35W vs 35W)

AMD Ryzen 7 7840H 's Advantages

Released 2 years late

Larger memory bandwidth (89.6GB/s vs 68.27GB/s)

Newer PCIe version (4 vs 3.0)

Higher base frequency (3.8GHz vs 3.3GHz)

More modern manufacturing process (4nm vs 7nm)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 5900HX

1484

AMD Ryzen 7 7840H +21%

1800

Cinebench R23 Multi Core

AMD Ryzen 9 5900HX

12809

AMD Ryzen 7 7840H +39%

17887

Geekbench 6 Single Core

AMD Ryzen 9 5900HX

1993

AMD Ryzen 7 7840H +31%

2625

Geekbench 6 Multi Core

AMD Ryzen 9 5900HX

9310

AMD Ryzen 7 7840H +26%

11813

Blender

AMD Ryzen 9 5900HX +9%

216

AMD Ryzen 7 7840H

197

Geekbench 5 Single Core

AMD Ryzen 9 5900HX

1511

AMD Ryzen 7 7840H +26%

1909

Geekbench 5 Multi Core

AMD Ryzen 9 5900HX

8303

AMD Ryzen 7 7840H +38%

11494

Passmark CPU Single Core

AMD Ryzen 9 5900HX

3183

AMD Ryzen 7 7840H +24%

3947

Passmark CPU Multi Core

AMD Ryzen 9 5900HX

22772

AMD Ryzen 7 7840H +24%

28248

AMD Ryzen 9 5900HX

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AMD Ryzen 7 7840H

General Parameters

Jan 2021

Release Date

Jan 2023

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

-

Cezanne

Core Architecture

Phoenix

FP6

Socket

AMD Socket FP8

Radeon RX Vega 8

Integrated Graphics

Radeon 780M

-

Generation

Ryzen 7 (Zen 4 (Phoenix))

Package

-

Transistor Count

25 billions

7 nm

Manufacturing Process

4 nm

FP6

Socket

AMD Socket FP8

35-54 W

Power Consumption

35 W

105 °C

Peak Operating Temperature

100 °C

-

Foundry

TSMC

-

Die Size

178 mm²

-

Package

FP8, FP7, FP7r2

CPU Performance

8

Performance Cores

-

16

Performance Core Threads

-

3.3 GHz

Performance Core Base Frequency

3.8 GHz

4.6 GHz

Performance Core Turbo Frequency

5.1 GHz

8

Total Core Count

8

16

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

38.0

64 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

1 MB per core

16 MB shared

L3 Cache

16 MB shared

Yes

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR4-3200, LPDDR4-4266

Memory Types

DDR5-5600

64 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

68.27 GB/s

Max Memory Bandwidth

89.6 GB/s

Yes

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

true

2100 MHz

GPU Max Dynamic Frequency

2700 MHz

512

Shader Units

-

32

Texture Units

-

8

Raster Operation Units

-

Execution Units

12

15 W

Power Consumption

-

Graphics Performance

10 TFLOPS

Miscellaneous

AMD Ryzen 9 5900HX

Official Website

AMD Ryzen 7 7840H

3.0

PCIe Version

4

16

PCIe Lanes

20

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