AMD Ryzen 7 7840U vs AMD Ryzen 3 Pro 5450U

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We compared two laptop CPUs: AMD Ryzen 7 7840U with 8 cores 3.3GHz and AMD Ryzen 3 Pro 5450U with 4 cores 2.6GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 7 7840U 's Advantages

Released 2 years and 2 months late

Higher specification of memory (LPDDR5x-7500 vs LPDDR4-4266)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (3.3GHz vs 2.6GHz)

Larger L3 cache size (16MB vs 8MB)

More modern manufacturing process (4nm vs 7nm)

Lower TDP (15W vs 15W)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 7 7840U +48%

2401

AMD Ryzen 3 Pro 5450U

1618

Geekbench 6 Multi Core

AMD Ryzen 7 7840U +126%

10983

AMD Ryzen 3 Pro 5450U

4858

Blender

AMD Ryzen 7 7840U +515%

234

AMD Ryzen 3 Pro 5450U

38

Geekbench 5 Single Core

AMD Ryzen 7 7840U +47%

1907

AMD Ryzen 3 Pro 5450U

1294

Geekbench 5 Multi Core

AMD Ryzen 7 7840U +124%

10387

AMD Ryzen 3 Pro 5450U

4629

AMD Ryzen 7 7840U

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AMD Ryzen 3 Pro 5450U

General Parameters

May 2023

Release Date

Mar 2021

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Phoenix)

Core Architecture

Cezanne U

FP8

Socket

FP6

Radeon 780M

Integrated Graphics

Radeon RX Vega 6

Package

25 billions

Transistor Count

-

4 nm

Manufacturing Process

7 nm

FP8

Socket

FP6

15-30 W

Power Consumption

15 W

100°C

Peak Operating Temperature

105 °C

CPU Performance

8

Performance Cores

4

16

Performance Core Threads

8

3.3 GHz

Performance Core Base Frequency

2.6 GHz

5.1 GHz

Performance Core Turbo Frequency

4 GHz

8

Total Core Count

4

16

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

26x

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

8 MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR5-5600, LPDDR5x-7500

Memory Types

DDR4-3200, LPDDR4-4266

256 GB

Max Memory Size

32 GB

2

Max Memory Channels

2

-

Max Memory Bandwidth

51.2 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

1500 MHz

GPU Base Frequency

-

2700 MHz

GPU Max Dynamic Frequency

1600 MHz

768

Shader Units

384

48

Texture Units

24

32

Raster Operation Units

8

12

Execution Units

-

15 W

Power Consumption

15 W

7680x4320 - 60 Hz

Max Resolution

-

8.12 TFLOPS

Graphics Performance

-

Miscellaneous

AMD Ryzen 7 7840U

Official Website

AMD Ryzen 3 Pro 5450U

4.0

PCIe Version

3.0

20

PCIe Lanes

12

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