AMD Ryzen 7 7840H vs AMD Ryzen 7 4700U

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We compared two laptop CPUs: AMD Ryzen 7 7840H with 8 cores 3.8GHz and AMD Ryzen 7 4700U with 8 cores 2.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 7 7840H 's Advantages

Released 3 years late

Better graphics card performance

Larger memory bandwidth (89.6GB/s vs 68.27GB/s)

Newer PCIe version (4 vs 3.0)

Higher base frequency (3.8GHz vs 2.0GHz)

Larger L3 cache size (16MB vs 8MB)

More modern manufacturing process (4nm vs 7nm)

AMD Ryzen 7 4700U 's Advantages

Higher specification of memory (LPDDR4-4266 vs DDR5-5600)

Lower TDP (10W vs 35W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 7 7840H +47%

1800

AMD Ryzen 7 4700U

1217

Cinebench R23 Multi Core

AMD Ryzen 7 7840H +142%

17887

AMD Ryzen 7 4700U

7376

Geekbench 6 Single Core

AMD Ryzen 7 7840H +73%

2625

AMD Ryzen 7 4700U

1512

Geekbench 6 Multi Core

AMD Ryzen 7 7840H +109%

11813

AMD Ryzen 7 4700U

5648

Blender

AMD Ryzen 7 7840H +103%

197

AMD Ryzen 7 4700U

97

Geekbench 5 Single Core

AMD Ryzen 7 7840H +69%

1909

AMD Ryzen 7 4700U

1125

Geekbench 5 Multi Core

AMD Ryzen 7 7840H +134%

11494

AMD Ryzen 7 4700U

4903

Passmark CPU Single Core

AMD Ryzen 7 7840H +57%

3947

AMD Ryzen 7 4700U

2510

Passmark CPU Multi Core

AMD Ryzen 7 7840H +111%

28248

AMD Ryzen 7 4700U

13373

AMD Ryzen 7 7840H

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AMD Ryzen 7 4700U

General Parameters

Jan 2023

Release Date

Jan 2020

AMD

Manufacturer

AMD

Laptop

Type

Laptop

-

Instruction Set

x86-64

Phoenix

Core Architecture

Zen 2

AMD Socket FP8

Socket

FP6

Radeon 780M

Integrated Graphics

Radeon Vega 7

Ryzen 7 (Zen 4 (Phoenix))

Generation

-

Package

25 billions

Transistor Count

-

4 nm

Manufacturing Process

7 nm

AMD Socket FP8

Socket

FP6

35 W

Power Consumption

10-25 W

100 °C

Peak Operating Temperature

105 °C

TSMC

Foundry

-

178 mm²

Die Size

-

FP8, FP7, FP7r2

Package

-

CPU Performance

-

Performance Cores

8

-

Performance Core Threads

8

3.8 GHz

Performance Core Base Frequency

2.0 GHz

5.1 GHz

Performance Core Turbo Frequency

4.1 GHz

8

Total Core Count

8

16

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

38.0

Multiplier

20x

64 K per core

L1 Cache

32 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

1

SMP

-

Memory Parameters

DDR5-5600

Memory Types

DDR4-3200, LPDDR4-4266

256 GB

Max Memory Size

32 GB

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

68.27 GB/s

Yes

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

300 MHz

2700 MHz

GPU Max Dynamic Frequency

1600 MHz

-

Shader Units

448

-

Texture Units

28

-

Raster Operation Units

7

12

Execution Units

-

Power Consumption

10-45 W

10 TFLOPS

Graphics Performance

1.108 TFLOPS

Miscellaneous

AMD Ryzen 7 7840H

Official Website

AMD Ryzen 7 4700U

4

PCIe Version

3.0

20

PCIe Lanes

16

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