AMD Ryzen 7 5800U vs AMD Ryzen 9 8940H

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We compared two laptop CPUs: AMD Ryzen 7 5800U with 8 cores 1.9GHz and AMD Ryzen 9 8940H with 8 cores 4.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 7 5800U 's Advantages

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

Lower TDP (10W vs 35W)

AMD Ryzen 9 8940H 's Advantages

Released 3 years late

Larger memory bandwidth (89.6GB/s vs 51.2GB/s)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (4.0GHz vs 1.9GHz)

More modern manufacturing process (4nm vs 7nm)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 7 5800U

1826

AMD Ryzen 9 8940H +37%

2512

Geekbench 6 Multi Core

AMD Ryzen 7 5800U

6437

AMD Ryzen 9 8940H +103%

13104

AMD Ryzen 7 5800U

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AMD Ryzen 9 8940H

General Parameters

Jan 2021

Release Date

Jan 2024

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Cezanne

Core Architecture

Zen 4 (Phoenix)

FP6

Socket

FP8

Radeon RX Vega 8

Integrated Graphics

Radeon 780M

Package

-

Transistor Count

25 billions

7 nm

Manufacturing Process

4 nm

FP6

Socket

FP8

10-25 W

Power Consumption

35-54 W

105 °C

Peak Operating Temperature

100°C

CPU Performance

8

Performance Cores

8

16

Performance Core Threads

16

1.9 GHz

Performance Core Base Frequency

4.0 GHz

4.4 GHz

Performance Core Turbo Frequency

5.2 GHz

8

Total Core Count

8

16

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

19x

Multiplier

40x

64 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

8 MB

16 MB shared

L3 Cache

16 MB

No

Unlocked Multiplier

No

Memory Parameters

DDR4-3200, LPDDR4-4266

Memory Types

DDR5-5600

32 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

51.2 GB/s

Max Memory Bandwidth

89.6 GB/s

No

ECC Memory Support

-

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

1500 MHz

2000 MHz

GPU Max Dynamic Frequency

2800 MHz

512

Shader Units

768

32

Texture Units

48

8

Raster Operation Units

32

-

Execution Units

12

15 W

Power Consumption

15 W

-

Max Resolution

7680x4320 - 60 Hz

-

Graphics Performance

8.12 TFLOPS

Miscellaneous

AMD Ryzen 7 5800U

Official Website

AMD Ryzen 9 8940H

3.0

PCIe Version

4.0

12

PCIe Lanes

20

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