AMD Ryzen 5 8540U vs AMD Ryzen 9 7945HX3D

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We compared two laptop CPUs: AMD Ryzen 5 8540U with 6 cores 3.2GHz and AMD Ryzen 9 7945HX3D with 16 cores 2.3GHz . 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

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 2.3GHz)

Lower TDP (15W vs 55W)

AMD Ryzen 9 7945HX3D 's Advantages

Newer PCIe version (5 vs 4.0)

Larger L3 cache size (128MB vs 16MB)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 5 8540U

1814

AMD Ryzen 9 7945HX3D +7%

1958

Cinebench R23 Multi Core

AMD Ryzen 5 8540U

10508

AMD Ryzen 9 7945HX3D +221%

33745

Geekbench 6 Single Core

AMD Ryzen 5 8540U

2390

AMD Ryzen 9 7945HX3D +16%

2783

Geekbench 6 Multi Core

AMD Ryzen 5 8540U

8172

AMD Ryzen 9 7945HX3D +96%

16080

AMD Ryzen 5 8540U

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AMD Ryzen 9 7945HX3D

General Parameters

Dec 2023

Release Date

Jul 2023

Amd

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

-

Hawk Point

Core Architecture

Dragon Range

FP7

Socket

AMD Socket FL1

Radeon 740M

Integrated Graphics

Radeon 610M

Ryzen 5 (Zen 4 (Hawk Point))

Generation

Ryzen 9 (Zen 4 (Dragon Range))

Package

20.9 billions

Transistor Count

17.84 billions

4 nm

Manufacturing Process

5 nm

FP7

Socket

AMD Socket FL1

15-30 W

Power Consumption

55 W

100°C

Peak Operating Temperature

89 °C

TSMC

Foundry

TSMC

137 mm²

Die Size

2x71 mm²

-

I/O Process Size

6 nm

-

I/O Die Size

122 mm²

FP7, FP7r2

Package

µFC-BGAFL1

CPU Performance

6

Performance Cores

-

12

Performance Core Threads

-

3.2 GHz

Performance Core Base Frequency

2.3 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

23.0

64 K per core

L1 Cache

64 KB per core

1 MB per core

L2 Cache

1 MB per core

16 MB shared

L3 Cache

128 MB shared

No

Unlocked Multiplier

Yes

1

SMP

1

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

Yes

Graphics Card Parameters

true

Integrated Graphics

true

1500 MHz

GPU Base Frequency

-

2800 MHz

GPU Max Dynamic Frequency

2200 MHz

256

Shader Units

-

16

Texture Units

-

8

Raster Operation Units

-

4

Execution Units

2

15 W

Power Consumption

-

2.56 TFLOPS

Graphics Performance

0.49 TFLOPS

Miscellaneous

AMD Ryzen 5 8540U

Official Website

AMD Ryzen 9 7945HX3D

4.0

PCIe Version

5

14

PCIe Lanes

28

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