AMD Ryzen AI Max 390

Manufacturer: AMD

The AMD Ryzen AI Max 390 is a processor designed for both laptop and desktop platforms, combining a 4 nm manufacturing process with a 12-core configuration that reaches a 5 GHz turbo clock speed. With 24 threads and support for multithreading, it handles parallel workloads across a wide range of computing tasks. The chip also integrates a Radeon 8050S GPU, adding graphics capability without requiring a discrete card.

On the memory side, the Ryzen AI Max 390 supports DDR5 RAM at up to 8000 MHz across eight memory channels, with a maximum capacity of 128 GB and ECC memory support. Cache is distributed across 960 KB of L1, 12 MB of L2, and 64 MB of L3. Benchmark results place it at 42,429 in PassMark multi-core and 17,277 in Geekbench 6 multi-core testing. The chip uses PCIe 4.0, supports DirectX 12 Ultimate through its integrated graphics, and includes instruction sets such as AVX2, AES, and FMA3.

Pros

Supports up to 128 GB of DDR5 RAM across eight memory channels, enabling substantial memory bandwidth for demanding workloads
ECC memory support adds a layer of data integrity protection useful in reliability-sensitive computing environments
The integrated Radeon 8050S GPU handles up to four displays simultaneously without requiring a separate graphics card
A 64 MB L3 cache distributed at 5.33 MB per core helps sustain throughput across all 12 cores during multi-threaded tasks
Compatible with both laptop and desktop platforms, giving system builders flexibility in how the chip is deployed
Turbo clock speed reaches 5 GHz, allowing individual cores to ramp up for single-threaded workloads

Cons

The multiplier is locked, so users cannot adjust clock speeds beyond the factory-set turbo frequency
A 55W TDP may present thermal management challenges in compact laptop chassis where cooling headroom is limited
Does not use big.LITTLE technology, meaning there is no dedicated set of efficiency cores to offload lighter background tasks
PassMark single-core result of 4,025 and Geekbench 6 single-core score of 2,774 indicate moderate per-core output relative to the chip's multi-core capabilities

Who is this for?

This processor is well-matched for users who need sustained multi-threaded performance across both laptop and desktop environments, particularly those running workstation-class workloads such as content creation, data processing, or engineering applications. The combination of eight memory channels, DDR5 support up to 8000 MHz, and a maximum of 128 GB RAM makes it a strong fit for memory-intensive workflows where bandwidth matters. ECC memory support also makes it a reasonable choice for environments where data reliability is a priority, such as scientific computing or professional development work. The integrated Radeon 8050S with four-display output and DirectX 12 Ultimate support additionally suits users who need a capable multi-monitor setup without relying on a discrete GPU.

Who is this NOT for?

Users who rely on manual overclocking will find this chip limiting, as the locked multiplier removes that avenue for pushing beyond factory clock speeds. The 55W TDP can also pose challenges in thermally constrained laptop designs, making it a poor match for ultra-thin or passively cooled systems where sustained load performance may be throttled. Additionally, users focused primarily on single-threaded workloads — such as certain legacy applications or lightly threaded games — may find the single-core benchmark results less compelling, given that the chip's design clearly prioritizes multi-core throughput over raw per-core speed.

General info:

Type	Laptop, Desktop
Has integrated graphics	✓
Thermal Design Power (TDP)	55W
semiconductor size	4 nm
CPU temperature	100 °C
PCI Express (PCIe) version	4
Supports 64-bit	✓

The AMD Ryzen AI Max 390 is compatible with both laptop and desktop platforms and is built on a 4 nm semiconductor process, contributing to its efficient design with a Thermal Design Power of 55W. It includes integrated graphics, supports 64-bit computing, and uses PCIe version 4 for peripheral connectivity. The processor has a maximum operating temperature of 100 °C.

Performance:

CPU speed	12 x 3.2 GHz
CPU threads	24 threads
turbo clock speed	5GHz
Has an unlocked multiplier	✕
L2 cache	12 MB
L3 cache	64 MB
L1 cache	960 KB
L2 core	1 MB/core
L3 core	5.33 MB/core
Uses big.LITTLE technology	✕
clock multiplier	32

The processor runs 12 cores at a base speed of 3.2 GHz each, supporting 24 threads without using big.LITTLE technology, and can reach a turbo clock speed of 5 GHz with a clock multiplier of 32. The multiplier is locked, so overclocking through that method is not available. Cache is organized across three levels — 960 KB of L1, 12 MB of L2 at 1 MB per core, and 64 MB of L3 at 5.33 MB per core — providing a substantial amount of fast-access memory to support sustained workloads.

Benchmarks:

PassMark result	42429
PassMark result (single)	4025
Geekbench 6 result (multi)	17277
Geekbench 6 result (single)	2774

In benchmark testing, the processor achieved a PassMark multi-core score of 42,429 alongside a single-core result of 4,025, reflecting its threaded and per-core output respectively. Geekbench 6 testing recorded a multi-core score of 17,277 and a single-core score of 2,774, rounding out a consistent picture of the chip's measured performance across both workload types.

Integrated graphics:

GPU name	Radeon 8050S
DirectX version	DirectX 12 Ultimate
supported displays	4
OpenGL version	4.6
OpenCL version	3

The integrated graphics solution is the Radeon 8050S, which supports up to four displays simultaneously and is compatible with DirectX 12 Ultimate for modern graphics workloads. It also supports OpenGL version 4.6 and OpenCL version 3, covering a broad range of graphics rendering and general-purpose GPU computing tasks.

Memory:

RAM speed (max)	8000 MHz
DDR memory version	5
memory channels	8
maximum memory amount	128GB
Supports ECC memory	✓

The processor supports DDR5 memory at speeds up to 8000 MHz across eight memory channels, allowing for substantial memory bandwidth in demanding workloads. It accommodates a maximum of 128 GB of RAM and includes support for ECC memory, which enables error detection and correction for applications where data integrity is a priority.

Features:

instruction sets	MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
uses multithreading	✓
Has NX bit	✓

The processor supports multithreading and includes the NX bit for hardware-level memory protection against certain types of malicious code execution. Its instruction set support spans MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, covering a wide range of operations from legacy multimedia instructions through to modern floating-point, encryption, and vector processing capabilities.

Final Verdict

The AMD Ryzen AI Max 390 is a processor built around multi-core throughput and memory bandwidth, with its eight-channel DDR5 support at up to 8000 MHz and 128 GB capacity ceiling standing out as defining characteristics that shape its practical appeal. Paired with 24 threads, a 64 MB L3 cache, ECC memory support, and an integrated Radeon 8050S capable of driving four displays, it presents a well-rounded package for workstation-oriented use in both laptop and desktop form factors. Its locked multiplier and thermally demanding 55W envelope do place real constraints on certain deployment scenarios, but for users whose priorities align with sustained parallel performance and data-intensive workloads, the Ryzen AI Max 390 delivers a coherent and capable specification set.