ARCTIC P12 Pro PST - Powerful Premium Fan, vs Thermalright Assassin X 120R Digital ARGB Black
Updated July 2026 — ARCTIC P12 Pro PST - Powerful Premium Fan, wins on fan speed, Thermalright Assassin X 120R Digital ARGB Black wins on height and noise level.
The ARCTIC P12 Pro PST is a budget-friendly fan with high performance, while the Thermalright Assassin X 120R offers advanced cooling features and aesthetics. Choose based on your cooling needs and budget.
Why ARCTIC P12 Pro PST - Powerful Premium Fan, is better
Price
ARCTIC is significantly cheaper at $9.49
Speed Range
ARCTIC offers a wider speed range up to 3000 RPM
Installation
ARCTIC is easier to install for beginners
Why Thermalright Assassin X 120R Digital ARGB Black is better
Cooling Performance
Thermalright has four heat pipes for better cooling
Aesthetics
Thermalright features ARGB lighting and a digital screen
Compatibility
Thermalright is designed for specific CPU sockets
Overall score
Specifications
| Spec | ARCTIC P12 Pro PST - Powerful Premium Fan, | Thermalright Assassin X 120R Digital ARGB Black |
|---|---|---|
| Max RPM | 3000 | 2000 |
| Bearing Type | Fluid Dynamic | S-FDB |
| ARGB | No | Yes |
| Heat Pipes | None | 4 |
| Socket Compatibility | Universal | AM4/AM5, Intel |
Dimension comparison
Overview of the ARCTIC P12 Pro PST and Thermalright Assassin X 120R
The ARCTIC P12 Pro PST is available at $9.49, making it a budget-friendly option, while the Thermalright Assassin X 120R is priced at $22.90, about 141% more expensive. Both products cater to cooling needs but differ significantly in design and functionality. The ARCTIC P12 Pro is a premium fan, while the Thermalright Assassin X is a complete CPU air cooler, which indicates that their applications might be suited for different users.
Design and Build Quality
The ARCTIC P12 Pro PST features a sleek and minimalistic design, focusing on high-performance airflow without excess noise. It boasts a fluid dynamic bearing that minimizes vibrations, enhancing longevity and quiet operation. In contrast, the Thermalright Assassin X 120R integrates a more complex design with four heat pipes and a digital screen, not only offering efficient heat dissipation but also an aesthetic appeal with its ARGB lighting. The build quality of both products is commendable, but the Assassin X provides additional features that may attract users looking for both performance and style.
Cooling Performance
When it comes to cooling performance, the ARCTIC P12 Pro PST operates at a speed range of 600 to 3000 RPM, ensuring it can handle various cooling demands efficiently. This wide speed range allows users to adjust airflow dynamically based on their needs. On the other hand, the Thermalright Assassin X 120R features a PWM fan that operates at a maximum speed of 2000 RPM. While this is slightly lower than the maximum speed of the ARCTIC fan, the Assassin X's four heat pipes enhance its overall cooling capability, making it suitable for more demanding CPU cooling tasks.
Noise Levels
Noise levels are crucial when selecting cooling components, and both products aim for quiet operation. The ARCTIC P12 Pro PST is designed for minimal noise, operating quietly even at higher speeds due to its fluid dynamic bearing technology. The Thermalright Assassin X 120R also emphasizes low noise, thanks to silicone corner pads that reduce rotational noise. However, the maximum RPM of the Assassin X being lower than that of the ARCTIC may contribute to a quieter profile under load, making it a potential choice for users sensitive to noise.
Compatibility
Compatibility is essential for ensuring the product fits within your system. The ARCTIC P12 Pro PST is a standard 120 mm fan that can be used in various configurations, whether as a case fan or for CPU cooling. The Thermalright Assassin X 120R is designed with specific socket compatibility in mind, including AM4/AM5 and Intel LGA 1700/1151/1200 sockets. This makes the Assassin X more tailored for CPU cooling applications, but it may limit its use in other configurations compared to the versatile ARCTIC fan.
Price Analysis
The ARCTIC P12 Pro PST is priced at $9.49, which is considerably lower than the Thermalright Assassin X 120R at $22.90. This price difference of about $13.41 represents a significant saving for those on a budget or looking for a straightforward cooling solution. However, the higher cost of the Thermalright product may be justified by its additional features, such as the digital screen and ARGB lighting, which enhance both functionality and aesthetics.
User Experience and Installation
Installation experience can vary significantly between a fan and a CPU cooler. The ARCTIC P12 Pro PST is easy to install, requiring minimal effort to mount and configure, making it user-friendly for all skill levels. The Thermalright Assassin X 120R, while also designed for straightforward installation, may require a bit more attention due to its heat pipes and additional components. Users seeking a hassle-free installation might prefer the ARCTIC fan, while those who value performance may opt for the greater complexity of the Assassin X.
Which should you buy?
Choosing between the ARCTIC P12 Pro PST and the Thermalright Assassin X 120R largely depends on your specific needs. If you are looking for an affordable, high-performance fan that can adapt to various cooling scenarios, the ARCTIC P12 Pro PST is a solid choice at $9.49. However, if you require a more robust CPU cooling solution with aesthetic enhancements like ARGB lighting and a digital screen, the Thermalright Assassin X 120R, priced at $22.90, may be the better investment. Ultimately, your decision should be guided by your cooling requirements, budget, and whether you prioritize simplicity or advanced features.

