AMD Ryzen 7 7840H vs AMD Ryzen 7 3700U

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We compared two laptop CPUs: AMD Ryzen 7 7840H with 8 cores 3.8GHz and AMD Ryzen 7 3700U with 4 cores 2.3GHz . 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 4 years late

Better graphics card performance

Higher specification of memory (DDR5-5600 vs DDR4-2400)

Larger memory bandwidth (89.6GB/s vs 35.76GB/s)

Newer PCIe version (4 vs 3.0)

Higher base frequency (3.8GHz vs 2.3GHz)

Larger L3 cache size (16MB vs 4MB)

More modern manufacturing process (4nm vs 12nm)

AMD Ryzen 7 3700U 's Advantages

Lower TDP (12W vs 35W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 7 7840H +92%

1800

AMD Ryzen 7 3700U

937

Cinebench R23 Multi Core

AMD Ryzen 7 7840H +368%

17887

AMD Ryzen 7 3700U

3821

Geekbench 6 Single Core

AMD Ryzen 7 7840H +224%

2625

AMD Ryzen 7 3700U

809

Geekbench 6 Multi Core

AMD Ryzen 7 7840H +396%

11813

AMD Ryzen 7 3700U

2380

Blender

AMD Ryzen 7 7840H +337%

197

AMD Ryzen 7 3700U

45

Geekbench 5 Single Core

AMD Ryzen 7 7840H +121%

1909

AMD Ryzen 7 3700U

860

Geekbench 5 Multi Core

AMD Ryzen 7 7840H +317%

11494

AMD Ryzen 7 3700U

2751

Passmark CPU Single Core

AMD Ryzen 7 7840H +99%

3947

AMD Ryzen 7 3700U

1976

Passmark CPU Multi Core

AMD Ryzen 7 7840H +292%

28248

AMD Ryzen 7 3700U

7197

AMD Ryzen 7 7840H

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AMD Ryzen 7 3700U

General Parameters

Jan 2023

Release Date

Jan 2019

AMD

Manufacturer

AMD

Laptop

Type

Laptop

-

Instruction Set

x86-64

Phoenix

Core Architecture

Picasso

AMD Socket FP8

Socket

FP5

Radeon 780M

Integrated Graphics

Radeon Vega 10

Ryzen 7 (Zen 4 (Phoenix))

Generation

-

Package

25 billions

Transistor Count

4.9 billions

4 nm

Manufacturing Process

12 nm

AMD Socket FP8

Socket

FP5

35 W

Power Consumption

12-35 W

100 °C

Peak Operating Temperature

105 °C

TSMC

Foundry

-

178 mm²

Die Size

-

FP8, FP7, FP7r2

Package

-

CPU Performance

-

Performance Cores

4

-

Performance Core Threads

8

3.8 GHz

Performance Core Base Frequency

2.3 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

38.0

Multiplier

23x

64 K per core

L1 Cache

96 K per core

1 MB per core

L2 Cache

512 K per core

16 MB shared

L3 Cache

4 MB shared

No

Unlocked Multiplier

No

1

SMP

-

Memory Parameters

DDR5-5600

Memory Types

DDR4-2400

256 GB

Max Memory Size

32 GB

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

35.76 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

1400 MHz

-

Shader Units

640

-

Texture Units

40

-

Raster Operation Units

8

12

Execution Units

10

-

Power Consumption

10 W

-

Max Resolution

3840x2160 - 60 Hz

10 TFLOPS

Graphics Performance

1.664 TFLOPS

Miscellaneous

AMD Ryzen 7 7840H

Official Website

AMD Ryzen 7 3700U

4

PCIe Version

3.0

20

PCIe Lanes

12

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