AMD Ryzen 5 3450U vs AMD Ryzen 9 7940HS

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

Main Differences

AMD Ryzen 5 3450U 's Advantages

Lower TDP (12W vs 35W)

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)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 5 3450U

886

AMD Ryzen 9 7940HS +106%

1832

Cinebench R23 Multi Core

AMD Ryzen 5 3450U

3181

AMD Ryzen 9 7940HS +452%

17585

Geekbench 6 Single Core

AMD Ryzen 5 3450U

961

AMD Ryzen 9 7940HS +163%

2534

Geekbench 6 Multi Core

AMD Ryzen 5 3450U

2403

AMD Ryzen 9 7940HS +434%

12852

Blender

AMD Ryzen 5 3450U

33

AMD Ryzen 9 7940HS +754%

282

Geekbench 5 Single Core

AMD Ryzen 5 3450U

768

AMD Ryzen 9 7940HS +161%

2010

Geekbench 5 Multi Core

AMD Ryzen 5 3450U

2495

AMD Ryzen 9 7940HS +396%

12376

Passmark CPU Single Core

AMD Ryzen 5 3450U

1914

AMD Ryzen 9 7940HS +104%

3910

Passmark CPU Multi Core

AMD Ryzen 5 3450U

6726

AMD Ryzen 9 7940HS +354%

30545

AMD Ryzen 5 3450U

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AMD Ryzen 9 7940HS

General Parameters

Jan 2020

Release Date

Jan 2023

AMD

Manufacturer

Amd

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen+

Core Architecture

Zen 4 (Phoenix)

FP5

Socket

FP8

Radeon Vega 8

Integrated Graphics

Radeon 780M

Package

-

Transistor Count

25 billions

12 nm

Manufacturing Process

4 nm

FP5

Socket

FP8

12-35 W

Power Consumption

35-54 W

105 °C

Peak Operating Temperature

100°C

CPU Performance

4

Performance Cores

8

Performance Core Threads

16

2.1 GHz

Performance Core Base Frequency

4.0 GHz

3.5 GHz

Performance Core Turbo Frequency

5.2 GHz

4

Total Core Count

8

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

21x

Multiplier

40x

64 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

1 MB per core

4 MB shared

L3 Cache

16 MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR4-2400

Memory Types

DDR5-5600, LPDDR5x-7500

32 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

38.4 GB/s

Max Memory Bandwidth

89.6 GB/s

-

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

300 MHz

GPU Base Frequency

800 MHz

2400 MHz

GPU Max Dynamic Frequency

2800 MHz

512

Shader Units

768

32

Texture Units

48

8

Raster Operation Units

32

8

Execution Units

12

65 W

Power Consumption

15 W

3840x2160 - 60 Hz

Max Resolution

7680x4320 - 60 Hz

1.13 TFLOPS

Graphics Performance

8.12 TFLOPS

Miscellaneous

AMD Ryzen 5 3450U

Official Website

AMD Ryzen 9 7940HS

3.0

PCIe Version

4.0

12

PCIe Lanes

20

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