AMD Ryzen 9 4900H vs AMD Ryzen AI Max 390

VS

AMD Ryzen 9 4900H

AMD Ryzen AI Max 390

We compared two laptop CPUs: AMD Ryzen 9 4900H with 8 cores 3.3GHz and AMD Ryzen AI Max 390 with 12 cores 2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 4900H 's Advantages

Higher base frequency (3.3GHz vs 2GHz)

AMD Ryzen AI Max 390 's Advantages

Released 4 years and 10 months late

Higher specification of memory (8000 vs 4266)

Larger memory bandwidth (128GB/s vs 68.27GB/s)

Newer PCIe version (4 vs 3.0)

Larger L3 cache size (64MB vs 8MB)

More modern manufacturing process (4nm vs 7nm)

Score

AMD Ryzen 9 4900H

VS

AMD Ryzen AI Max 390

General Parameters

Mar 2020

Release Date

Jan 2025

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 2

Core Architecture

Strix Halo

FP6

Socket

AMD Socket FP8

Radeon Vega 8

Integrated Graphics

40CU(Unknown)

-

Generation

Zen 5

Package

-

Transistor Count

7 nm

Manufacturing Process

4 nm

35-54 W

Power Consumption

15-54 W

-

Max Turbo Power Consumption

W

105 °C

Peak Operating Temperature

100°C

-

Foundry

TSMC

-

I/O Process Size

6 nm

CPU Performance

8

Performance Cores

12

16

Performance Core Threads

24

3.3 GHz

Performance Core Base Frequency

2 GHz

4.4 GHz

Performance Core Turbo Frequency

5.1 GHz

-

Efficiency Cores

0

-

Efficiency Core Threads

-

Efficiency Core Base Frequency

0 MHz

-

Efficiency Core Turbo Frequency

0 GHz

8

Total Core Count

12

16

Total Thread Count

24

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

20.0

-

L1 Cache

80 KB per core

512 K per core

L2 Cache

1 MB per core

8 MB shared

L3 Cache

64 MB

No

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR4-3200, LPDDR4X-4266

Memory Types

LPDDR5X-8000

64 GB

Max Memory Size

96 GB

4

Max Memory Channels

2

68.27 GB/s

Max Memory Bandwidth

128 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

1750 MHz

GPU Max Dynamic Frequency

MHz

512

Shader Units

32

Texture Units

8

Raster Operation Units

-

Execution Units

40

15 W

Power Consumption

-

Max Resolution

-

Graphics Performance

0 TFLOPS

AI Accelerator

-

NPU

AMD Ryzen™ AI

-

Theoretical performance

55 TOPS

Miscellaneous

AMD Ryzen 9 4900H

Official Website

AMD Ryzen AI Max 390

3.0

PCIe Version

4

16

PCIe Lanes

16

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