Apple M4 Ultra vs AMD Ryzen 5 PRO 8645HS

VS

Apple M4 Ultra

AMD Ryzen 5 PRO 8645HS

We compared two laptop CPUs: Apple M4 Ultra with 32 cores 4.52GHz and AMD Ryzen 5 PRO 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 1 months late

Higher specification of memory (8533 vs 7500)

Higher base frequency (4.52GHz vs 4.3GHz)

More modern manufacturing process (3nm vs 4nm)

Score

Benchmark

Geekbench 6 Single Core

Apple M4 Ultra +64%

4065

AMD Ryzen 5 PRO 8645HS

2478

Geekbench 6 Multi Core

Apple M4 Ultra +219%

32892

AMD Ryzen 5 PRO 8645HS

10306

Apple M4 Ultra

VS

AMD Ryzen 5 PRO 8645HS

General Parameters

May 2025

Release Date

Apr 2024

Apple

Manufacturer

AMD

Laptop

Type

Laptop

ARMv9

Instruction Set

-

Apple M4

Core Architecture

Hawk Point

Apple M-Socket

Socket

AMD Socket FP7

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

-

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

43.0

-

L1 Cache

64 KB per core

-

L2 Cache

6 MB

-

L3 Cache

16 MB

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

Yes

Graphics Card Parameters

true

Integrated Graphics

true

500 MHz

GPU Base Frequency

-

1800 MHz

GPU Max Dynamic Frequency

2600 MHz

10240

Shader Units

-

640

Texture Units

-

320

Raster Operation Units

-

1280

Execution Units

8

120

Power Consumption

-

36.9 TFLOPS

Graphics Performance

-

AI Accelerator

-

NPU

AMD Ryzen™ AI

-

Theoretical performance

16 TOPS

Miscellaneous

-

Official Website

AMD Ryzen 5 PRO 8645HS

-

PCIe Version

4

-

PCIe Lanes

20

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