AMD Ryzen 9 7940HS vs AMD Ryzen 5 3450U

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We compared two laptop CPUs: AMD Ryzen 9 7940HS with 8 cores 4.0GHz and AMD Ryzen 5 3450U with 4 cores 2.1GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 7940HS 's Advantages

Released 3 years late

Better graphics card performance

Higher specification of memory (LPDDR5x-7500 vs DDR4-2400)

Larger memory bandwidth (89.6GB/s vs 38.4GB/s)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (4.0GHz vs 2.1GHz)

Larger L3 cache size (16MB vs 4MB)

AMD Ryzen 5 3450U 's Advantages

Lower TDP (12W vs 35W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7940HS +106%

1832

AMD Ryzen 5 3450U

886

Cinebench R23 Multi Core

AMD Ryzen 9 7940HS +452%

17585

AMD Ryzen 5 3450U

3181

Geekbench 6 Single Core

AMD Ryzen 9 7940HS +163%

2534

AMD Ryzen 5 3450U

961

Geekbench 6 Multi Core

AMD Ryzen 9 7940HS +434%

12852

AMD Ryzen 5 3450U

2403

Blender

AMD Ryzen 9 7940HS +754%

282

AMD Ryzen 5 3450U

33

Geekbench 5 Single Core

AMD Ryzen 9 7940HS +161%

2010

AMD Ryzen 5 3450U

768

Geekbench 5 Multi Core

AMD Ryzen 9 7940HS +396%

12376

AMD Ryzen 5 3450U

2495

Passmark CPU Single Core

AMD Ryzen 9 7940HS +104%

3910

AMD Ryzen 5 3450U

1914

Passmark CPU Multi Core

AMD Ryzen 9 7940HS +354%

30545

AMD Ryzen 5 3450U

6726

AMD Ryzen 9 7940HS

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AMD Ryzen 5 3450U

General Parameters

Jan 2023

Release Date

Jan 2020

Amd

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Phoenix)

Core Architecture

Zen+

FP8

Socket

FP5

Radeon 780M

Integrated Graphics

Radeon Vega 8

Package

25 billions

Transistor Count

-

4 nm

Manufacturing Process

12 nm

FP8

Socket

FP5

35-54 W

Power Consumption

12-35 W

100°C

Peak Operating Temperature

105 °C

CPU Performance

8

Performance Cores

4

16

Performance Core Threads

8

4.0 GHz

Performance Core Base Frequency

2.1 GHz

5.2 GHz

Performance Core Turbo Frequency

3.5 GHz

8

Total Core Count

4

16

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

40x

Multiplier

21x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

512 K per core

16 MB shared

L3 Cache

4 MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR5-5600, LPDDR5x-7500

Memory Types

DDR4-2400

256 GB

Max Memory Size

32 GB

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

38.4 GB/s

No

ECC Memory Support

-

Graphics Card Parameters

true

Integrated Graphics

true

800 MHz

GPU Base Frequency

300 MHz

2800 MHz

GPU Max Dynamic Frequency

2400 MHz

768

Shader Units

512

48

Texture Units

32

Raster Operation Units

8

12

Execution Units

8

15 W

Power Consumption

65 W

7680x4320 - 60 Hz

Max Resolution

3840x2160 - 60 Hz

8.12 TFLOPS

Graphics Performance

1.13 TFLOPS

Miscellaneous

AMD Ryzen 9 7940HS

Official Website

AMD Ryzen 5 3450U

4.0

PCIe Version

3.0

20

PCIe Lanes

12

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