AMD Ryzen 9 5900H vs AMD Ryzen 5 3450U

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We compared two laptop CPUs: AMD Ryzen 9 5900H with 8 cores 3.3GHz 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 5900H 's Advantages

Released 1 years and 3 months late

Higher specification of memory (LPDDR4-4266 vs DDR4-2400)

Larger memory bandwidth (68.27GB/s vs 38.4GB/s)

Higher base frequency (3.3GHz vs 2.1GHz)

Larger L3 cache size (16MB vs 4MB)

More modern manufacturing process (7nm vs 12nm)

AMD Ryzen 5 3450U 's Advantages

Lower TDP (12W vs 45W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 5900H +65%

1466

AMD Ryzen 5 3450U

886

Cinebench R23 Multi Core

AMD Ryzen 9 5900H +302%

12815

AMD Ryzen 5 3450U

3181

Geekbench 6 Single Core

AMD Ryzen 9 5900H +111%

2034

AMD Ryzen 5 3450U

961

Geekbench 6 Multi Core

AMD Ryzen 9 5900H +206%

7376

AMD Ryzen 5 3450U

2403

Geekbench 5 Single Core

AMD Ryzen 9 5900H +98%

1528

AMD Ryzen 5 3450U

768

Geekbench 5 Multi Core

AMD Ryzen 9 5900H +252%

8790

AMD Ryzen 5 3450U

2495

Passmark CPU Single Core

AMD Ryzen 9 5900H +72%

3308

AMD Ryzen 5 3450U

1914

Passmark CPU Multi Core

AMD Ryzen 9 5900H +208%

20753

AMD Ryzen 5 3450U

6726

AMD Ryzen 9 5900H

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AMD Ryzen 5 3450U

General Parameters

Apr 2021

Release Date

Jan 2020

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Cezanne

Core Architecture

Zen+

FP6

Socket

FP5

Radeon RX Vega 8

Integrated Graphics

Radeon Vega 8

Package

7 nm

Manufacturing Process

12 nm

FP6

Socket

FP5

45 W

Power Consumption

12-35 W

105 °C

Peak Operating Temperature

105 °C

CPU Performance

8

Performance Cores

4

16

Performance Core Threads

8

3.3 GHz

Performance Core Base Frequency

2.1 GHz

4.6 GHz

Performance Core Turbo Frequency

3.5 GHz

8

Total Core Count

4

16

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

21x

64 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

512 K per core

16 MB shared

L3 Cache

4 MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR4-3200, LPDDR4-4266

Memory Types

DDR4-2400

64 GB

Max Memory Size

32 GB

2

Max Memory Channels

2

68.27 GB/s

Max Memory Bandwidth

38.4 GB/s

Yes

ECC Memory Support

-

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

300 MHz

1750 MHz

GPU Max Dynamic Frequency

2400 MHz

512

Shader Units

512

32

Texture Units

32

8

Raster Operation Units

8

-

Execution Units

8

15 W

Power Consumption

65 W

-

Max Resolution

3840x2160 - 60 Hz

-

Graphics Performance

1.13 TFLOPS

Miscellaneous

-

Official Website

AMD Ryzen 5 3450U

3.0

PCIe Version

3.0

16

PCIe Lanes

12

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