AMD Ryzen 9 7940HX vs AMD Ryzen 5 8540U

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We compared two laptop CPUs: AMD Ryzen 9 7940HX with 16 cores 2.4GHz and AMD Ryzen 5 8540U with 6 cores 3.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 7940HX 's Advantages

Newer PCIe version (5.0 vs 4.0)

Larger L3 cache size (64MB vs 16MB)

AMD Ryzen 5 8540U 's Advantages

Better graphics card performance

Higher specification of memory (LPDDR5x-7500 vs DDR5-5200)

Larger memory bandwidth (89.6GB/s vs 83.2GB/s)

Higher base frequency (3.2GHz vs 2.4GHz)

Lower TDP (15W vs 55W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7940HX +3%

1882

AMD Ryzen 5 8540U

1814

Cinebench R23 Multi Core

AMD Ryzen 9 7940HX +216%

33284

AMD Ryzen 5 8540U

10508

Geekbench 6 Single Core

AMD Ryzen 9 7940HX +12%

2688

AMD Ryzen 5 8540U

2390

Geekbench 6 Multi Core

AMD Ryzen 9 7940HX +91%

15655

AMD Ryzen 5 8540U

8172

AMD Ryzen 9 7940HX

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AMD Ryzen 5 8540U

General Parameters

Jan 2024

Release Date

Dec 2023

AMD

Manufacturer

Amd

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Dragon Range)

Core Architecture

Hawk Point

AMD Socket FL1

Socket

FP7

Radeon 610M

Integrated Graphics

Radeon 740M

-

Generation

Ryzen 5 (Zen 4 (Hawk Point))

Package

13.14 billions

Transistor Count

20.9 billions

5 nm

Manufacturing Process

4 nm

AMD Socket FL1

Socket

FP7

55 W

Power Consumption

15-30 W

100°C

Peak Operating Temperature

100°C

-

Foundry

TSMC

-

Die Size

137 mm²

-

Package

FP7, FP7r2

CPU Performance

16

Performance Cores

6

32

Performance Core Threads

12

2.4 GHz

Performance Core Base Frequency

3.2 GHz

5.2 GHz

Performance Core Turbo Frequency

4.9 GHz

-

Efficiency Cores

4

-

Efficiency Core Threads

8

16

Total Core Count

6

32

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

24

Multiplier

32x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

1 MB per core

64 MB

L3 Cache

16 MB shared

Yes

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR5-5200

Memory Types

DDR5-5600, LPDDR5x-7500

64 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

89.6 GB/s

-

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

400 MHz

GPU Base Frequency

1500 MHz

2200 MHz

GPU Max Dynamic Frequency

2800 MHz

128

Shader Units

256

8

Texture Units

16

4

Raster Operation Units

8

2

Execution Units

4

15 W

Power Consumption

15 W

0.563 TFLOPS

Graphics Performance

2.56 TFLOPS

Miscellaneous

Official Website

AMD Ryzen 5 8540U

5.0

PCIe Version

4.0

28

PCIe Lanes

14

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