AMD Ryzen 5 7645HX vs AMD Ryzen 7 4700U

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We compared two laptop CPUs: AMD Ryzen 5 7645HX with 6 cores 4.0GHz 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 5 7645HX 's Advantages

Released 3 years late

Larger memory bandwidth (83.2GB/s vs 68.27GB/s)

Newer PCIe version (5.0 vs 3.0)

Higher base frequency (4.0GHz vs 2.0GHz)

Larger L3 cache size (32MB vs 8MB)

More modern manufacturing process (5nm vs 7nm)

AMD Ryzen 7 4700U 's Advantages

Better graphics card performance

Higher specification of memory (LPDDR4-4266 vs DDR5-5200)

Lower TDP (10W vs 45W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 5 7645HX +50%

1827

AMD Ryzen 7 4700U

1217

Cinebench R23 Multi Core

AMD Ryzen 5 7645HX +91%

14098

AMD Ryzen 7 4700U

7376

Geekbench 6 Single Core

AMD Ryzen 5 7645HX +79%

2720

AMD Ryzen 7 4700U

1512

Geekbench 6 Multi Core

AMD Ryzen 5 7645HX +110%

11906

AMD Ryzen 7 4700U

5648

Geekbench 5 Single Core

AMD Ryzen 5 7645HX +68%

1895

AMD Ryzen 7 4700U

1125

Geekbench 5 Multi Core

AMD Ryzen 5 7645HX +127%

11141

AMD Ryzen 7 4700U

4903

AMD Ryzen 5 7645HX

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AMD Ryzen 7 4700U

General Parameters

Jan 2023

Release Date

Jan 2020

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Dragon Range)

Core Architecture

Zen 2

FL1

Socket

FP6

Radeon 610M

Integrated Graphics

Radeon Vega 7

Package

5 nm

Manufacturing Process

7 nm

FL1

Socket

FP6

45-75 W

Power Consumption

10-25 W

100°C

Peak Operating Temperature

105 °C

CPU Performance

6

Performance Cores

8

12

Performance Core Threads

8

4.0 GHz

Performance Core Base Frequency

2.0 GHz

5 GHz

Performance Core Turbo Frequency

4.1 GHz

6

Total Core Count

8

12

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

40x

Multiplier

20x

64 K per core

L1 Cache

32 K per core

1 MB per core

L2 Cache

512 K per core

32 MB shared

L3 Cache

8 MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR5-5200

Memory Types

DDR4-3200, LPDDR4-4266

64 GB

Max Memory Size

32 GB

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

68.27 GB/s

No

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

true

1500 MHz

GPU Base Frequency

300 MHz

2200 MHz

GPU Max Dynamic Frequency

1600 MHz

128

Shader Units

448

8

Texture Units

28

4

Raster Operation Units

7

2

Execution Units

-

15 W

Power Consumption

10-45 W

0.49 TFLOPS

Graphics Performance

1.108 TFLOPS

Miscellaneous

AMD Ryzen 5 7645HX

Official Website

AMD Ryzen 7 4700U

5.0

PCIe Version

3.0

28

PCIe Lanes

16

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