AMD Ryzen 9 9955HX3D

Manufacturer: AMD

The AMD Ryzen 9 9955HX3D is a high-performance CPU designed for both desktop and laptop applications. With 32 threads and a base clock of 2.5 GHz, this processor can handle a wide range of tasks efficiently. Its Radeon 610M integrated graphics provide additional flexibility, making it suitable for various use cases. The CPU is built with a 4 nm semiconductor process, ensuring improved power efficiency and performance.

For enhanced performance, the Ryzen 9 9955HX3D can reach a turbo clock speed of 5.4 GHz. It features 16 MB of L2 cache and a substantial 128 MB of L3 cache, contributing to better data processing speeds. Supporting up to 96GB of DDR5 RAM at speeds up to 5600 MHz, this CPU is well-suited for demanding applications. It also supports PCIe 5.0 and provides solid multitasking capabilities through its multithreading support.

Pros

Supports up to 96GB of RAM, providing ample capacity for demanding applications.
Integrated Radeon 610M graphics with a turbo boost up to 2200 MHz, suitable for moderate gaming and multimedia tasks.
Equipped with 32 threads, offering strong multi-tasking and parallel processing capabilities.
Built on a 4 nm semiconductor process, which helps in improving efficiency and performance.
Supports PCIe 5.0, enabling faster data transfer for compatible devices and components.

Cons

Does not support ECC memory, limiting its suitability for error-critical applications.
Has a fixed clock multiplier, which may limit overclocking flexibility for users seeking more customization.
Does not utilize big.LITTLE technology, potentially leading to less energy-efficient performance in certain scenarios.

Who is this for?

The AMD Ryzen 9 9955HX3D is ideal for users who require high-performance computing with robust multitasking capabilities. With its 32 threads and support for up to 96GB of RAM, it excels in environments that demand heavy processing power, such as content creation, video editing, and software development. Its integrated Radeon 610M GPU and support for PCIe 5.0 also make it a good choice for users who need decent graphics performance alongside CPU-heavy workloads.

Who is this NOT for?

This CPU is not suitable for users who need highly specialized, error-sensitive applications due to the lack of ECC memory support. Additionally, the absence of an unlocked multiplier means overclocking enthusiasts may find the processor's performance limits restrictive. It may also not be ideal for mobile devices or environments focused on power efficiency, as it lacks big.LITTLE technology, which would otherwise improve energy management for less demanding tasks.

General info:

Type	Desktop, Laptop
Has integrated graphics	✓
release date	January 2025
Thermal Design Power (TDP)	55W
semiconductor size	4 nm
CPU temperature	100 °C
PCI Express (PCIe) version	5
number of transistors	16630 million
Supports 64-bit	✓

The AMD Ryzen 9 9955HX3D is designed for both desktop and laptop systems, offering a range of features for versatile use. It includes integrated graphics, powered by the Radeon 610M, and supports PCIe 5.0 for faster data transfer. Built on a 4 nm semiconductor process, this CPU has a thermal design power (TDP) of 55W and supports 64-bit architecture. With 16.63 billion transistors, the Ryzen 9 9955HX3D ensures efficient processing and high performance, even in demanding tasks.

Performance:

CPU speed	16 x 2.5 GHz
CPU threads	32 threads
turbo clock speed	5.4GHz
Has an unlocked multiplier	✕
L2 cache	16 MB
L3 cache	128 MB
L1 cache	1280 KB
L2 core	1 MB/core
L3 core	8 MB/core
Uses big.LITTLE technology	✕
clock multiplier	25

The AMD Ryzen 9 9955HX3D delivers strong performance with 32 threads and a total clock speed of 16 x 2.5 GHz. For demanding tasks, it can boost to a turbo clock speed of 5.4 GHz, providing additional power when needed. It also features 16 MB of L2 cache and a substantial 128 MB of L3 cache, ensuring fast data access. This CPU does not support an unlocked multiplier or big.LITTLE technology, but its impressive cache sizes and clock speeds make it well-suited for multi-threaded workloads.

Benchmarks:

PassMark result	61356
PassMark result (single)	4491
Geekbench 6 result (multi)	19858
Geekbench 6 result (single)	3165

The AMD Ryzen 9 9955HX3D shows impressive benchmark results across various testing platforms. With a PassMark score of 61356 and a single-threaded PassMark result of 4491, it handles both multi-threaded and single-threaded tasks effectively. In Geekbench 6 tests, it achieved a multi-core score of 19858 and a single-core score of 3165, further highlighting its strong performance across a wide range of workloads.

Integrated graphics:

GPU clock speed	1500 MHz
GPU name	Radeon 610M
GPU turbo	2200 MHz
DirectX version	DirectX 12
supported displays	4
OpenGL version	4.6
OpenCL version	2
texture mapping units (TMUs)	8
render output units (ROPs)	4
shading units	128

The AMD Ryzen 9 9955HX3D is equipped with the Radeon 610M integrated GPU, offering a base clock speed of 1500 MHz and a turbo boost up to 2200 MHz. It supports up to 4 displays, powered by its 128 shading units and 8 texture mapping units (TMUs). The GPU is compatible with DirectX 12, OpenGL 4.6, and OpenCL 2.0, providing robust support for modern graphics applications and smooth multimedia performance.

Memory:

RAM speed (max)	5600 MHz
DDR memory version	5
memory channels	2
maximum memory amount	96GB
Supports ECC memory	✕

The AMD Ryzen 9 9955HX3D supports a maximum RAM speed of 5600 MHz with DDR5 memory. It features dual memory channels and can accommodate up to 96GB of RAM, providing ample capacity for demanding tasks. However, it does not support ECC memory, making it less suited for error-sensitive applications.

Features:

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

The AMD Ryzen 9 9955HX3D supports a variety of instruction sets including MMX, F16C, FMA3, AES, AVX, AVX2, and SSE 4.1/4.2, enhancing its ability to execute specialized tasks efficiently. It also supports multithreading, allowing each core to handle multiple threads simultaneously, improving performance for parallel workloads. Additionally, the processor is equipped with an NX bit, offering enhanced security by preventing the execution of harmful code in certain areas of memory.

Final Verdict

The AMD Ryzen 9 9955HX3D offers impressive multi-threaded performance with its 32 threads and support for up to 96GB of RAM, making it an excellent choice for power users in content creation and software development. While it lacks ECC memory support and has no overclocking flexibility, it remains a solid option for users needing a balance of CPU power and integrated graphics, thanks to its Radeon 610M GPU. Overall, it is a strong processor for demanding applications, though less suited for error-sensitive tasks or those requiring maximum energy efficiency.