AMD Ryzen 9 9900X3D

Manufacturer: AMD

The AMD Ryzen 9 9900X3D is a high-performance desktop CPU designed for users who need significant computing power. It features a base clock speed of 12 x 4.4 GHz, with the ability to turbo boost up to 5.5 GHz. The processor is built on a 4 nm semiconductor size and supports integrated graphics for added convenience. It is compatible with AM5 sockets and chipsets such as X670, B650, and X870, offering flexibility for various builds.

This processor offers impressive technical specifications, including a total of 24 threads and a 120W Thermal Design Power (TDP). It supports up to 192GB of DDR5 memory at speeds up to 5600 MHz, with two memory channels. The processor also comes equipped with 128 MB of L3 cache, ensuring quick data access for demanding tasks. Additionally, it supports ECC memory and a range of advanced instruction sets like AES and AVX2, making it suitable for both general and specialized workloads.

Pros

Supports up to 192GB of DDR5 memory, enabling large-scale multitasking and demanding applications.
Integrated graphics with a turbo speed of 2200 MHz provide a basic graphical solution without the need for a discrete GPU.
Unlocked multiplier allows for overclocking, offering flexibility for users seeking to push performance beyond stock speeds.
Supports ECC memory, ensuring better error correction and reliability for critical computing tasks.
Dual memory channels help improve memory bandwidth, enhancing overall system performance.

Cons

Thermal Design Power (TDP) of 120W may require adequate cooling solutions for consistent high-performance operation.
Does not support big.LITTLE technology, limiting energy efficiency options for certain workloads.
Maximum CPU temperature of 95°C may limit the ability to sustain peak performance without thermal throttling under high loads.

Who is this for?

The AMD Ryzen 9 9900X3D is ideal for users who need substantial processing power for multi-threaded tasks such as video editing, 3D rendering, and scientific simulations. With 24 threads and a turbo clock speed of 5.5GHz, it excels in handling complex workloads. Its support for up to 192GB of DDR5 memory and ECC memory also makes it a strong choice for workstations where reliability and large-scale data processing are critical.

Who is this NOT for?

This processor may not be the best choice for users focused on maximizing energy efficiency or for those with limited cooling solutions. With a 120W TDP and a maximum temperature of 95°C, it requires sufficient cooling under high load. Additionally, it does not feature big.LITTLE technology, which could affect power efficiency in tasks that do not demand full performance.

General info:

Type	Desktop
CPU socket	AM5
chipset	X670, B650, X870
Has integrated graphics	✓
release date	January 2025
Thermal Design Power (TDP)	120W
semiconductor size	4 nm
CPU temperature	95 °C
PCI Express (PCIe) version	5
Supports 64-bit	✓

The AMD Ryzen 9 9900X3D is a desktop processor designed for AM5 sockets, supporting chipsets like X670, B650, and X870. It features a 120W Thermal Design Power (TDP) and operates at a semiconductor size of 4 nm, offering efficient power consumption and performance. The CPU supports PCI Express 5.0 for high-speed data transfer and has integrated graphics for additional display functionality. With support for 64-bit processing, it is optimized for modern applications and workloads.

Performance:

CPU speed	12 x 4.4 GHz
CPU threads	24 threads
turbo clock speed	5.5GHz
Has an unlocked multiplier	✓
L2 cache	12 MB
L3 cache	128 MB
L1 cache	960 KB
L2 core	1 MB/core
L3 core	10.67 MB/core
Uses big.LITTLE technology	✕
clock multiplier	44

The AMD Ryzen 9 9900X3D features a total clock speed of 12 x 4.4 GHz with the ability to boost up to 5.5 GHz for demanding tasks. It has 24 threads, providing strong multi-threaded performance, and an unlocked multiplier, allowing for overclocking flexibility. The processor includes a significant 128 MB of L3 cache, ensuring fast data access, along with 12 MB of L2 cache to further enhance performance across different workloads.

Benchmarks:

PassMark result	56162
PassMark result (single)	4646
Geekbench 6 result (multi)	20548
Geekbench 6 result (single)	3334

The AMD Ryzen 9 9900X3D delivers impressive benchmark results, achieving a PassMark score of 56162 and a single-threaded score of 4646. Its multi-core performance is highlighted by a Geekbench 6 score of 20548, while its single-core performance reaches 3334 in the same test. These results demonstrate the CPU's capability to handle both multi-threaded and single-threaded workloads effectively.

Integrated graphics:

GPU turbo	2200 MHz

The AMD Ryzen 9 9900X3D is equipped with integrated graphics that can reach a GPU turbo speed of 2200 MHz, providing solid graphical performance for tasks that do not require a dedicated GPU. This allows the processor to handle basic gaming, media, and display functions without the need for an additional graphics card.

Memory:

RAM speed (max)	5600 MHz
DDR memory version	5
memory channels	2
maximum memory amount	192GB
Supports ECC memory	✓

The AMD Ryzen 9 9900X3D supports a maximum RAM speed of 5600 MHz and uses DDR5 memory, providing excellent memory performance for demanding applications. It features dual memory channels and supports up to 192GB of total memory, allowing for extensive multitasking and large-scale workloads. Additionally, the processor is compatible with ECC memory, ensuring greater reliability and error correction for critical systems.

Features:

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

The AMD Ryzen 9 9900X3D supports a wide range of instruction sets, including MMX, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, optimizing performance for various applications and workloads. Additionally, it features the NX bit, which provides an added layer of security by preventing the execution of malicious code in certain areas of memory.

Final Verdict

The AMD Ryzen 9 9900X3D is a high-performance desktop CPU suited for demanding tasks such as content creation, scientific computing, and data processing. With a robust 12 x 4.4 GHz clock speed and support for up to 192GB of DDR5 memory, it excels in both multi-threaded and single-threaded workloads. While its 120W TDP and lack of big.LITTLE technology may require attention to cooling and power efficiency, its unlocked multiplier and integrated graphics make it a versatile choice for advanced users seeking both power and reliability. This processor is a solid option for professional environments demanding substantial computing power.