Apple M4 Ultra vs AMD Ryzen 5 8645HS

VS

Apple M4 Ultra

AMD Ryzen 5 8645HS

We compared two laptop CPUs: Apple M4 Ultra with 32 cores 4.52GHz and AMD Ryzen 5 8645HS with 6 cores 4.3GHz . 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

Apple M4 Ultra +27%

2199

AMD Ryzen 5 8645HS

1724

Cinebench R23 Multi Core

Apple M4 Ultra +242%

44742

AMD Ryzen 5 8645HS

13058

Geekbench 6 Single Core

Apple M4 Ultra +65%

4065

AMD Ryzen 5 8645HS

2455

Geekbench 6 Multi Core

Apple M4 Ultra +219%

32892

AMD Ryzen 5 8645HS

10287

Apple M4 Ultra

VS

AMD Ryzen 5 8645HS

General Parameters

May 2025

Release Date

Dec 2023

Apple

Manufacturer

AMD

Laptop

Type

Laptop

ARMv9

Instruction Set

x86-64

Apple M4

Core Architecture

Zen 4 (Hawk Point)

Apple M-Socket

Socket

FP8

Apple M4 Ultra GPU (80-core)

Integrated Graphics

Radeon 760M

-

Generation

Ryzen 5 (Zen 4 (Hawk Point))

Package

-

Transistor Count

25 billions

3 nm

Manufacturing Process

4 nm

-

Power Consumption

35-54 W

100 °C

Peak Operating Temperature

100°C

-

Foundry

TSMC

-

Die Size

178 mm²

CPU Performance

24

Performance Cores

6

24

Performance Core Threads

12

4.52 GHz

Performance Core Base Frequency

4.3 GHz

-

Performance Core Turbo Frequency

5 GHz

8

Efficiency Cores

-

8

Efficiency Core Threads

-

2.89 GHz

Efficiency Core Base Frequency

-

32

Total Core Count

6

32

Total Thread Count

12

-

Bus Frequency

100 MHz

45

Multiplier

43x

-

L1 Cache

64 K per core

-

L2 Cache

1 MB per core

-

L3 Cache

16 MB shared

No

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

LPDDR5X-8533

Memory Types

DDR5-5600, LPDDR5x-7500

192 GB

Max Memory Size

256 GB

8

Max Memory Channels

2

-

Max Memory Bandwidth

89.6 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

500 MHz

GPU Base Frequency

800 MHz

1800 MHz

GPU Max Dynamic Frequency

2600 MHz

10240

Shader Units

512

640

Texture Units

32

320

Raster Operation Units

16

1280

Execution Units

8

120

Power Consumption

15 W

36.9 TFLOPS

Graphics Performance

2.66 TFLOPS

Miscellaneous

-

Official Website

AMD Ryzen 5 8645HS official page

-

PCIe Version

4.0

-

PCIe Lanes

20

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