AMD Ryzen 5 3450U vs AMD Ryzen 9 7940HX

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We compared two laptop CPUs: AMD Ryzen 5 3450U with 4 cores 2.1GHz and AMD Ryzen 9 7940HX with 16 cores 2.4GHz . 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

Better graphics card performance

Lower TDP (12W vs 55W)

AMD Ryzen 9 7940HX 's Advantages

Released 4 years late

Higher specification of memory (DDR5-5200 vs DDR4-2400)

Larger memory bandwidth (83.2GB/s vs 38.4GB/s)

Newer PCIe version (5.0 vs 3.0)

Higher base frequency (2.4GHz vs 2.1GHz)

Larger L3 cache size (64MB vs 4MB)

More modern manufacturing process (5nm vs 12nm)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 5 3450U

886

AMD Ryzen 9 7940HX +112%

1882

Cinebench R23 Multi Core

AMD Ryzen 5 3450U

3181

AMD Ryzen 9 7940HX +946%

33284

Geekbench 6 Single Core

AMD Ryzen 5 3450U

961

AMD Ryzen 9 7940HX +179%

2688

Geekbench 6 Multi Core

AMD Ryzen 5 3450U

2403

AMD Ryzen 9 7940HX +551%

15655

AMD Ryzen 5 3450U

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AMD Ryzen 9 7940HX

General Parameters

Jan 2020

Release Date

Jan 2024

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen+

Core Architecture

Zen 4 (Dragon Range)

FP5

Socket

AMD Socket FL1

Radeon Vega 8

Integrated Graphics

Radeon 610M

Package

-

Transistor Count

13.14 billions

12 nm

Manufacturing Process

5 nm

FP5

Socket

AMD Socket FL1

12-35 W

Power Consumption

55 W

105 °C

Peak Operating Temperature

100°C

CPU Performance

4

Performance Cores

16

8

Performance Core Threads

32

2.1 GHz

Performance Core Base Frequency

2.4 GHz

3.5 GHz

Performance Core Turbo Frequency

5.2 GHz

4

Total Core Count

16

8

Total Thread Count

32

100 MHz

Bus Frequency

100 MHz

21x

Multiplier

24

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

64 MB

No

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2400

Memory Types

DDR5-5200

32 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

38.4 GB/s

Max Memory Bandwidth

83.2 GB/s

Graphics Card Parameters

true

Integrated Graphics

true

300 MHz

GPU Base Frequency

400 MHz

2400 MHz

GPU Max Dynamic Frequency

2200 MHz

512

Shader Units

128

32

Texture Units

8

Raster Operation Units

4

8

Execution Units

2

65 W

Power Consumption

15 W

3840x2160 - 60 Hz

Max Resolution

-

1.13 TFLOPS

Graphics Performance

0.563 TFLOPS

Miscellaneous

AMD Ryzen 5 3450U

Official Website

3.0

PCIe Version

5.0

12

PCIe Lanes

28

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