AMD Ryzen AI 9 HX 475

Manufacturer: AMD

The AMD Ryzen AI 9 HX 475 is a processor designed for both desktop and laptop platforms, built on a 4nm semiconductor process. It uses big.LITTLE technology to arrange its cores across two performance tiers, with a combined thread count of 24 and an unlocked multiplier that allows for tuning flexibility. Operating within a 28W TDP envelope, it balances computational throughput with thermal constraints suited to a range of system designs.

On the performance side, the chip reaches a turbo clock speed of 5.2GHz and is backed by 12MB of L2 cache and 24MB of L3 cache. Memory support extends to DDR5 at up to 8533MHz across two channels, with a maximum capacity of 256GB. The integrated Radeon 890M graphics unit runs at a base of 400MHz and boosts to 3100MHz, offering 1024 shading units, 64 TMUs, and 32 ROPs alongside support for DirectX 12, OpenGL 4.6, and OpenCL 2.1. The processor also carries a broad instruction set including AVX2, FMA3, and AES, with full 64-bit and multithreading support.

Pros

Supports up to 256GB of DDR5 memory across two channels, offering substantial headroom for memory-intensive workloads
The unlocked multiplier allows for manual frequency adjustments beyond the default 5.2GHz turbo clock
Integrated Radeon 890M graphics with support for up to 4 simultaneous displays removes the need for a discrete GPU in many use cases
Broad instruction set coverage including AVX2, FMA3, and AES enables hardware-accelerated encryption and vectorized compute tasks
Compatible with both desktop and laptop platforms, giving system builders flexibility across form factors
24 threads via big.LITTLE hybrid core configuration allows efficient task distribution across workloads

Cons

Base GPU clock of 400MHz is low, meaning the integrated graphics relies heavily on its boost frequency for any sustained rendering
ECC memory is not supported, limiting suitability for error-sensitive or mission-critical computing environments
A 28W TDP, while efficient, may constrain sustained peak performance in thermally restricted laptop chassis
Only PCIe 4.0 is supported, which caps bandwidth for high-throughput storage or expansion devices that benefit from newer generations

Who is this for?

This processor is a practical fit for users building compact or mobile systems that demand multi-threaded performance without a discrete GPU, such as thin-and-light laptops or small form-factor desktops used for content creation, software development, or everyday productivity. The Radeon 890M integrated graphics with support for up to four displays makes it well-suited for multi-monitor setups in office or creative environments. The combination of DDR5 support at up to 8533MHz and a 256GB memory ceiling also makes it a reasonable choice for users running large datasets or memory-heavy applications within a low-TDP constraint.

Who is this NOT for?

Users requiring ECC memory support for error-sensitive workloads — such as scientific computing, financial modeling, or server-grade applications — will find this processor unsuitable given its lack of ECC compatibility. Similarly, those looking to pair it with the latest high-bandwidth storage or expansion hardware may be limited by its PCIe 4.0 ceiling. The 28W TDP also means it is not a strong fit for sustained heavy workloads in thermally constrained environments where consistent peak clock speeds are critical, such as prolonged high-load rendering or compute tasks within tight laptop thermal budgets.

General info:

Type	Desktop, Laptop
Has integrated graphics	✓
Thermal Design Power (TDP)	28W
semiconductor size	4 nm
CPU temperature	100 °C
PCI Express (PCIe) version	4
Supports 64-bit	✓

The AMD Ryzen AI 9 HX 475 is designed for both desktop and laptop platforms and features integrated graphics alongside full 64-bit support. Built on a 4nm semiconductor process, it operates with a Thermal Design Power of 28W and can sustain a maximum CPU temperature of 100°C. The processor supports PCIe 4.0 for connectivity with compatible expansion hardware and storage devices.

Performance:

CPU speed	4 x 2 & 8 x 2 GHz
CPU threads	24 threads
turbo clock speed	5.2GHz
Has an unlocked multiplier	✓
L2 cache	12 MB
L3 cache	24 MB
Uses big.LITTLE technology	✓

The processor delivers 24 threads across a hybrid core configuration using big.LITTLE technology, with base clock speeds arranged as 4 cores at 2GHz and 8 cores at 2GHz, scaling up to a turbo clock of 5.2GHz. An unlocked multiplier provides additional headroom for manual frequency adjustments. Cache resources include 12MB of L2 and 24MB of L3, supporting efficient data access across the core complex.

Benchmarks:

Integrated graphics:

GPU clock speed	400 MHz
GPU name	Radeon 890M
GPU turbo	3100 MHz
DirectX version	DirectX 12
supported displays	4
OpenGL version	4.6
OpenCL version	2.1
texture mapping units (TMUs)	64
render output units (ROPs)	32
shading units	1024

The integrated Radeon 890M runs at a base clock of 400MHz and boosts up to 3100MHz, with support for up to 4 simultaneous displays. Its rendering pipeline consists of 1024 shading units, 64 texture mapping units, and 32 render output units. API compatibility covers DirectX 12, OpenGL 4.6, and OpenCL 2.1, covering a broad range of graphics and compute workloads.

Memory:

RAM speed (max)	8533 MHz
DDR memory version	5
memory channels	2
maximum memory amount	256GB
Supports ECC memory	✕

The processor supports DDR5 memory across two channels, with a maximum rated speed of 8533MHz and a ceiling of 256GB total capacity. ECC memory is not supported, making it oriented toward standard consumer and prosumer configurations rather than error-correcting workloads.

Features:

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

The processor includes multithreading support and an NX bit for hardware-level execution protection. Its instruction set coverage spans MMX, SSE 4.1, SSE 4.2, AVX, AVX2, FMA3, F16C, and AES, providing a broad foundation for vectorized operations, floating-point workloads, and hardware-accelerated encryption.

Final Verdict

The AMD Ryzen AI 9 HX 475 is a well-rounded processor for users who need capable multi-threaded performance and integrated graphics within a controlled power envelope, across both laptop and desktop deployments. Its 24-thread hybrid core architecture paired with DDR5 memory support up to 8533MHz positions it as a credible choice for productivity-oriented builds, content workflows, and multi-display setups that do not depend on a discrete GPU. Certain limitations — namely the absence of ECC support and the PCIe 4.0 ceiling — do narrow its relevance for specialized or high-bandwidth workloads, but within its intended scope, the HX 475 represents a technically coherent option for users seeking a balanced, low-TDP processor with meaningful integrated graphics capability.

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