ARCTIC P12 Pro A-RGB - Powerful Premium Fan, vs Thermalrlght Peerless Assassin 120 SE CPU Air
Updated August 2026 — ARCTIC P12 Pro A-RGB - Powerful Premium Fan, wins on fan size, Thermalrlght Peerless Assassin 120 SE CPU Air wins on weight and height.
The ARCTIC P12 Pro A-RGB offers excellent airflow at a budget price, while the Thermalrlght Peerless Assassin 120 SE provides superior CPU cooling performance. Choose based on your specific needs.
Why ARCTIC P12 Pro A-RGB - Powerful Premium Fan, is better
Price
ARCTIC P12 Pro A-RGB is significantly cheaper.
Noise
ARCTIC fan operates quieter due to fluid dynamic bearing.
Airflow Range
ARCTIC fan has a wider RPM range for airflow.
Why Thermalrlght Peerless Assassin 120 SE CPU Air is better
Cooling Performance
Thermalrlght cooler provides better CPU cooling.
Build Quality
Thermalrlght has a dual-tower design with heat pipes.
Compatibility
Thermalrlght supports a wider range of CPU sockets.
Overall score
Specifications
| Spec | ARCTIC P12 Pro A-RGB - Powerful Premium Fan, | Thermalrlght Peerless Assassin 120 SE CPU Air |
|---|---|---|
| Max RPM | 3000 | 1550 |
| Noise Level | ≤25 dB(A) | ≤25.6 dB(A) |
| Heat Pipes | 0 | 6 |
| Airflow | 66.17 CFM | 66.17 CFM |
| Bearing Type | Fluid Dynamic | Standard |
Dimension comparison
Overview of the ARCTIC P12 Pro A-RGB and Thermalrlght Peerless Assassin 120 SE
The ARCTIC P12 Pro A-RGB fan is a premium 120 mm PWM fan priced at $12.49, while the Thermalrlght Peerless Assassin 120 SE CPU cooler is a more complex cooling solution costing $32.90. The fan is designed to enhance airflow and cooling efficiency, while the CPU cooler aims to provide robust heat dissipation for various Intel and AMD processors. These products serve different purposes in the realm of cooling solutions, appealing to different user needs.
Design and Build Quality
The ARCTIC P12 Pro A-RGB features a sleek design with a black finish, making it visually appealing for modern builds. It utilizes a fluid dynamic bearing that minimizes noise, ensuring quiet operation. On the other hand, the Thermalrlght Peerless Assassin 120 SE boasts a dual-tower design with an aluminum heatsink cover and six heat pipes, offering not only aesthetics but also structural integrity. Its offset asymmetric layout improves compatibility with components, especially graphics cards. Thus, while the ARCTIC fan is focused on airflow efficiency, the Thermalrlght cooler emphasizes overall build quality and compatibility.
Cooling Performance
When it comes to cooling performance, the ARCTIC P12 Pro A-RGB fan generates airflow that ranges from 600 to 3000 RPM. This enables it to efficiently handle various cooling scenarios, particularly in high-resistance setups like dense radiators. Conversely, the Thermalrlght Peerless Assassin 120 SE features dual 120 mm TL-C12C PWM fans that operate at a maximum speed of about 1550 RPM. With six heat pipes and a cooling capacity that supports both AMD and Intel CPUs, it offers a more comprehensive cooling solution. Therefore, if you seek airflow versatility, the ARCTIC fan excels; however, for overall CPU cooling, Thermalrlght is superior.
Noise Levels
Noise levels are an essential consideration for many PC builders. The ARCTIC P12 Pro A-RGB is engineered for quiet performance with its fluid dynamic bearing, making it ideal for silent builds or environments where noise is a concern. Although the Thermalrlght Peerless Assassin 120 SE also maintains a reasonable noise level of 25.6 dB(A), it operates at lower RPMs than the ARCTIC fan, making it slightly noisier under load. Therefore, if tranquility is your priority, the ARCTIC fan may be the better option.
Installation and Compatibility
The ARCTIC P12 Pro A-RGB is straightforward to install, given its standard 120 mm fan size and 4-pin PWM connector. This makes it highly compatible with a variety of cases and motherboards. The Thermalrlght Peerless Assassin 120 SE, however, has a more complex installation process due to its dual-tower configuration and specific mounting requirements for AMD AM4/AM5 and Intel LGA 1700/1150/1151/1200/1851 sockets. This complexity may deter some users, particularly those new to PC building. Thus, for ease of installation, the ARCTIC fan is preferable.
Price Comparison
The ARCTIC P12 Pro A-RGB is priced at $12.49, making it about 62% cheaper than the Thermalrlght Peerless Assassin 120 SE, which retails for $32.90. This significant price difference highlights the different target markets: the ARCTIC fan is aimed at users looking for a high-performance fan at a budget-friendly price, while the Thermalrlght cooler targets those willing to invest more for a comprehensive CPU cooling solution. Therefore, your choice may depend heavily on your budget and cooling needs.
Target Audience
The ARCTIC P12 Pro A-RGB is ideal for gamers and PC enthusiasts who require efficient cooling for their systems without breaking the bank. Its performance at a low price makes it an attractive option for those looking to upgrade their airflow. In contrast, the Thermalrlght Peerless Assassin 120 SE is targeted at users who prioritize CPU cooling efficiency and are willing to pay a premium for enhanced thermal management. With its advanced features and design, it appeals more to builders looking for a robust solution for high-performance CPUs.
Which should you buy?
In conclusion, the decision between the ARCTIC P12 Pro A-RGB and the Thermalrlght Peerless Assassin 120 SE boils down to your specific cooling needs and budget. If you're looking for an affordable, high-performance fan focused on airflow, the ARCTIC P12 Pro A-RGB is a solid choice at $12.49. However, if you need a more comprehensive solution for CPU cooling that offers better thermal management and compatibility with various sockets, the Thermalrlght Peerless Assassin 120 SE at $32.90 may be worth the investment. Ultimately, both products excel in their respective areas, catering to different user preferences.

