AMD Ryzen 5 7645HX vs AMD Ryzen Z1 Extreme

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We compared two laptop CPUs: AMD Ryzen 5 7645HX with 6 cores 4.0GHz and AMD Ryzen Z1 Extreme with 8 cores 3.3GHz . 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

Newer PCIe version (5.0 vs 4)

Higher base frequency (4.0GHz vs 3.3GHz)

Larger L3 cache size (32MB vs 16MB)

AMD Ryzen Z1 Extreme 's Advantages

Better graphics card performance

Higher specification of memory (DDR5-5600 vs DDR5-5200)

Larger memory bandwidth (89.6GB/s vs 83.2GB/s)

More modern manufacturing process (4nm vs 5nm)

Lower TDP (9W vs 45W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 5 7645HX +9%

1827

AMD Ryzen Z1 Extreme

1676

Cinebench R23 Multi Core

AMD Ryzen 5 7645HX +30%

14098

AMD Ryzen Z1 Extreme

10818

Geekbench 6 Single Core

AMD Ryzen 5 7645HX +20%

2720

AMD Ryzen Z1 Extreme

2264

Geekbench 6 Multi Core

AMD Ryzen 5 7645HX +12%

11906

AMD Ryzen Z1 Extreme

10616

Geekbench 5 Single Core

AMD Ryzen 5 7645HX +2%

1895

AMD Ryzen Z1 Extreme

1841

Geekbench 5 Multi Core

AMD Ryzen 5 7645HX +12%

11141

AMD Ryzen Z1 Extreme

9906

AMD Ryzen 5 7645HX

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AMD Ryzen Z1 Extreme

General Parameters

Jan 2023

Release Date

May 2023

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

-

Zen 4 (Dragon Range)

Core Architecture

Phoenix

FL1

Socket

AMD Socket FP8

Radeon 610M

Integrated Graphics

AMD Radeon 780M

-

Generation

Ryzen 7 (Zen 4 (Phoenix))

Package

-

Transistor Count

25 billions

5 nm

Manufacturing Process

4 nm

FL1

Socket

AMD Socket FP8

45-75 W

Power Consumption

9-30 W

100°C

Peak Operating Temperature

100°C

-

Foundry

TSMC

-

Die Size

178 mm²

-

Package

FP8

CPU Performance

6

Performance Cores

-

12

Performance Core Threads

-

4.0 GHz

Performance Core Base Frequency

3.3 GHz

5 GHz

Performance Core Turbo Frequency

5.1 GHz

6

Total Core Count

8

12

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

40x

Multiplier

33.0

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

1 MB per core

32 MB shared

L3 Cache

16 MB shared

Yes

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR5-5200

Memory Types

DDR5-5600

64 GB

Max Memory Size

-

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

89.6 GB/s

No

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

true

1500 MHz

GPU Base Frequency

1500 MHz

2200 MHz

GPU Max Dynamic Frequency

2700 MHz

128

Shader Units

768

8

Texture Units

-

4

Raster Operation Units

-

2

Execution Units

12

15 W

Power Consumption

-

0.49 TFLOPS

Graphics Performance

8.6 TFLOPS

Miscellaneous

AMD Ryzen 5 7645HX

Official Website

AMD Ryzen Z1 Extreme

5.0

PCIe Version

4

28

PCIe Lanes

20

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