AMD Ryzen 5 8645HS vs Apple M4 Ultra

VS

AMD Ryzen 5 8645HS

Apple M4 Ultra

We compared two laptop CPUs: AMD Ryzen 5 8645HS with 6 cores 4.3GHz and Apple M4 Ultra with 32 cores 4.52GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Apple M4 Ultra 's Advantages

Released 1 years and 5 months late

Better graphics card performance

Higher specification of memory (8533 vs 7500)

Higher base frequency (4.52GHz vs 4.3GHz)

More modern manufacturing process (3nm vs 4nm)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 5 8645HS

1724

Apple M4 Ultra +27%

2199

Cinebench R23 Multi Core

AMD Ryzen 5 8645HS

13058

Apple M4 Ultra +242%

44742

Geekbench 6 Single Core

AMD Ryzen 5 8645HS

2455

Apple M4 Ultra +65%

4065

Geekbench 6 Multi Core

AMD Ryzen 5 8645HS

10287

Apple M4 Ultra +219%

32892

AMD Ryzen 5 8645HS

VS

Apple M4 Ultra

General Parameters

Dec 2023

Release Date

May 2025

AMD

Manufacturer

Apple

Laptop

Type

Laptop

x86-64

Instruction Set

ARMv9

Zen 4 (Hawk Point)

Core Architecture

Apple M4

FP8

Socket

Apple M-Socket

Radeon 760M

Integrated Graphics

Apple M4 Ultra GPU (80-core)

Ryzen 5 (Zen 4 (Hawk Point))

Generation

-

Package

25 billions

Transistor Count

-

4 nm

Manufacturing Process

3 nm

35-54 W

Power Consumption

-

100°C

Peak Operating Temperature

100 °C

TSMC

Foundry

-

178 mm²

Die Size

-

CPU Performance

6

Performance Cores

24

12

Performance Core Threads

24

4.3 GHz

Performance Core Base Frequency

4.52 GHz

5 GHz

Performance Core Turbo Frequency

-

Efficiency Cores

8

-

Efficiency Core Threads

8

-

Efficiency Core Base Frequency

2.89 GHz

6

Total Core Count

32

12

Total Thread Count

32

100 MHz

Bus Frequency

-

43x

Multiplier

45

64 K per core

L1 Cache

-

1 MB per core

L2 Cache

-

16 MB shared

L3 Cache

-

No

Unlocked Multiplier

No

1

SMP

-

Memory Parameters

DDR5-5600, LPDDR5x-7500

Memory Types

LPDDR5X-8533

256 GB

Max Memory Size

192 GB

2

Max Memory Channels

8

89.6 GB/s

Max Memory Bandwidth

-

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

800 MHz

GPU Base Frequency

500 MHz

2600 MHz

GPU Max Dynamic Frequency

1800 MHz

512

Shader Units

10240

32

Texture Units

640

16

Raster Operation Units

320

8

Execution Units

1280

15 W

Power Consumption

120

2.66 TFLOPS

Graphics Performance

36.9 TFLOPS

Miscellaneous

AMD Ryzen 5 8645HS official page

Official Website

-

4.0

PCIe Version

-

20

PCIe Lanes

-

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