AMD Ryzen 5 8540U vs AMD Ryzen 9 7945HX

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We compared two laptop CPUs: AMD Ryzen 5 8540U with 6 cores 3.2GHz and AMD Ryzen 9 7945HX with 16 cores 2.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 5 8540U 's Advantages

Released 11 months late

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 2.5GHz)

More modern manufacturing process (4nm vs 5nm)

Lower TDP (15W vs 55W)

AMD Ryzen 9 7945HX 's Advantages

Newer PCIe version (5.0 vs 4.0)

Larger L3 cache size (64MB vs 16MB)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 5 8540U

1814

AMD Ryzen 9 7945HX +8%

1963

Cinebench R23 Multi Core

AMD Ryzen 5 8540U

10508

AMD Ryzen 9 7945HX +229%

34581

Geekbench 6 Single Core

AMD Ryzen 5 8540U

2390

AMD Ryzen 9 7945HX +21%

2906

Geekbench 6 Multi Core

AMD Ryzen 5 8540U

8172

AMD Ryzen 9 7945HX +137%

19413

AMD Ryzen 5 8540U

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AMD Ryzen 9 7945HX

General Parameters

Dec 2023

Release Date

Jan 2023

Amd

Manufacturer

Amd

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Hawk Point

Core Architecture

Zen 4 (Dragon Range)

FP7

Socket

FL1

Radeon 740M

Integrated Graphics

Radeon 610M

Ryzen 5 (Zen 4 (Hawk Point))

Generation

-

Package

20.9 billions

Transistor Count

13.1 billions

4 nm

Manufacturing Process

5 nm

FP7

Socket

FL1

15-30 W

Power Consumption

55-75 W

100°C

Peak Operating Temperature

100°C

TSMC

Foundry

-

137 mm²

Die Size

-

FP7, FP7r2

Package

-

CPU Performance

6

Performance Cores

16

12

Performance Core Threads

32

3.2 GHz

Performance Core Base Frequency

2.5 GHz

4.9 GHz

Performance Core Turbo Frequency

5.4 GHz

4

Efficiency Cores

-

8

Efficiency Core Threads

-

6

Total Core Count

16

12

Total Thread Count

32

100 MHz

Bus Frequency

100 MHz

32x

Multiplier

25x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

1 MB per core

16 MB shared

L3 Cache

64 MB shared

No

Unlocked Multiplier

Yes

1

SMP

-

Memory Parameters

DDR5-5600, LPDDR5x-7500

Memory Types

DDR5-5200

256 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

83.2 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

1500 MHz

GPU Base Frequency

1500 MHz

2800 MHz

GPU Max Dynamic Frequency

2200 MHz

256

Shader Units

128

16

Texture Units

8

Raster Operation Units

4

Execution Units

2

15 W

Power Consumption

15 W

2.56 TFLOPS

Graphics Performance

0.49 TFLOPS

Miscellaneous

AMD Ryzen 5 8540U

Official Website

AMD Ryzen 9 7945HX

4.0

PCIe Version

5.0

14

PCIe Lanes

28

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