AMD Ryzen 9 7945HX3D vs AMD Ryzen 3 8440U

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We compared two laptop CPUs: AMD Ryzen 9 7945HX3D with 16 cores 2.3GHz and AMD Ryzen 3 8440U with 4 cores 3.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 7945HX3D 's Advantages

Newer PCIe version (5 vs 4.0)

Larger L3 cache size (128MB vs 8MB)

AMD Ryzen 3 8440U '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 (3.0GHz vs 2.3GHz)

Lower TDP (15W vs 55W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7945HX3D +13%

1958

AMD Ryzen 3 8440U

1724

Cinebench R23 Multi Core

AMD Ryzen 9 7945HX3D +273%

33745

AMD Ryzen 3 8440U

9029

Geekbench 6 Single Core

AMD Ryzen 9 7945HX3D +19%

2783

AMD Ryzen 3 8440U

2333

Geekbench 6 Multi Core

AMD Ryzen 9 7945HX3D +145%

16080

AMD Ryzen 3 8440U

6557

AMD Ryzen 9 7945HX3D

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AMD Ryzen 3 8440U

General Parameters

Jul 2023

Release Date

Dec 2023

AMD

Manufacturer

Amd

Laptop

Type

Laptop

-

Instruction Set

x86-64

Dragon Range

Core Architecture

Zen 4 (Hawk Point)

AMD Socket FL1

Socket

FP7

Radeon 610M

Integrated Graphics

Radeon 740M

Ryzen 9 (Zen 4 (Dragon Range))

Generation

Ryzen 3 (Zen 4 (Hawk Point))

Package

17.84 billions

Transistor Count

20.9 billions

5 nm

Manufacturing Process

4 nm

AMD Socket FL1

Socket

FP7

55 W

Power Consumption

15-30 W

89 °C

Peak Operating Temperature

100°C

TSMC

Foundry

TSMC

2x71 mm²

Die Size

137 mm²

6 nm

I/O Process Size

-

122 mm²

I/O Die Size

-

µFC-BGAFL1

Package

FP7, FP7r2

CPU Performance

-

Performance Cores

4

-

Performance Core Threads

8

2.3 GHz

Performance Core Base Frequency

3.0 GHz

5.4 GHz

Performance Core Turbo Frequency

4.7 GHz

-

Efficiency Cores

3

-

Efficiency Core Threads

6

16

Total Core Count

4

32

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

23.0

Multiplier

30x

64 KB per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

1 MB per core

128 MB shared

L3 Cache

8 MB shared

Yes

Unlocked Multiplier

No

1

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

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

1500 MHz

2200 MHz

GPU Max Dynamic Frequency

2400 MHz

-

Shader Units

256

-

Texture Units

16

-

Raster Operation Units

8

2

Execution Units

4

-

Power Consumption

15 W

0.49 TFLOPS

Graphics Performance

2.56 TFLOPS

Miscellaneous

AMD Ryzen 9 7945HX3D

Official Website

AMD Ryzen 3 8440U

5

PCIe Version

4.0

28

PCIe Lanes

14

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