ARCTIC P12 Pro Reverse – 3 Pack – vs Thermalright Assassin X120 Refined SE CPU Air
Updated July 2026 — ARCTIC P12 Pro Reverse – 3 Pack – wins on rpm, Thermalright Assassin X120 Refined SE CPU Air wins on height and noise.
The ARCTIC P12 Pro Reverse excels in aesthetics and airflow flexibility, while the Thermalright Assassin X120 offers proven performance and compatibility. Choose based on your specific needs.
Why ARCTIC P12 Pro Reverse – 3 Pack – is better
Design
Unique reverse airflow for aesthetics
RPM Range
Higher RPM range for better cooling
Noise Control
Designed for quieter operation
Why Thermalright Assassin X120 Refined SE CPU Air is better
Price
Slightly cheaper option
Compatibility
Supports more CPU sockets
Cooling Efficiency
Effective cooling with lower noise
Overall score
Specifications
| Spec | ARCTIC P12 Pro Reverse – 3 Pack – | Thermalright Assassin X120 Refined SE CPU Air |
|---|---|---|
| Fan Type | PWM Fan | PWM Fan |
| Max RPM | 3000 | 1550 |
| Airflow | 66 CFM | 66.17 CFM |
| Noise Level | Low | 25.6 dB(A) |
| Material | Plastic | Aluminum |
Dimension comparison
Overview of the ARCTIC P12 Pro Reverse and Thermalright Assassin X120 Refined SE
The ARCTIC P12 Pro Reverse is priced at $18.49, while the Thermalright Assassin X120 Refined SE is slightly cheaper at $17.90, making it about 3% less expensive. Both products cater to CPU cooling needs, but they approach this task quite differently. The ARCTIC P12 Pro Reverse focuses on a unique reverse airflow design, while the Thermalright Assassin X120 emphasizes traditional air cooling with advanced technology.
Design and Build Quality
The ARCTIC P12 Pro Reverse features a special design that draws air in from the backside, making it ideal for glass-fronted cases where aesthetics matter. In contrast, the Thermalright Assassin X120 Refined SE boasts an aluminum heatsink cover and four heat pipes that contribute to its cooling efficiency. Both products are well-built, but the ARCTIC's reverse airflow design provides a unique advantage in visual appeal for certain PC builds.
Cooling Performance
In terms of cooling performance, the ARCTIC P12 Pro Reverse offers a high static pressure capability, essential for penetrating dense radiators and mesh structures. It operates within a speed range of 500 to 3000 RPM, allowing for precise PWM control. On the other hand, the Thermalright Assassin X120, with a fan speed of 1550 RPM, provides airflow of 66.17 CFM while maintaining a noise level of 25.6 dB(A). While the ARCTIC may have a higher RPM range, the Thermalright's design ensures efficient cooling with a quieter operation.
Noise Levels
The ARCTIC P12 Pro Reverse is designed for quiet operation, thanks to its smooth-running fluid dynamic bearing, minimizing noise significantly during operation. Though specific noise levels for the ARCTIC are not provided, its design suggests a commitment to quiet performance. The Thermalright Assassin X120, with a maximum noise level of 25.6 dB(A), also emphasizes low noise while delivering efficient cooling. Both fans are engineered for quiet performance, making them suitable for noise-sensitive environments.
Installation and Compatibility
The ARCTIC P12 Pro Reverse is designed for flexibility, easily fitting into various cases due to its 120mm size. The Thermalright Assassin X120 is compatible with multiple sockets for both AMD and Intel processors, providing metal fasteners for easy installation. While both products offer straightforward installation processes, the Thermalright's broad compatibility with different CPU sockets is a significant advantage for users upgrading or building new systems.
Brand Reputation
ARCTIC and Thermalright are both established brands in the PC cooling market. ARCTIC is known for its innovative designs, particularly in fan technology, while Thermalright has a long history of reliable cooling solutions. With over 20 years of development, Thermalright has garnered a strong reputation for its CPU air coolers. Both brands have their loyal customer bases, making brand reliability another factor worth considering when choosing between these products.
User Experience and Feedback
While specific user feedback for the ARCTIC P12 Pro Reverse is not available, its innovative design and performance specifications have generally received positive attention in the community. The Thermalright Assassin X120 is noted for its efficient cooling and solid build quality, with users appreciating its performance in both gaming and productivity scenarios. The user experience may vary, but both products are well-regarded in their respective niches.
Which should you buy?
When deciding between the ARCTIC P12 Pro Reverse and the Thermalright Assassin X120 Refined SE, consider your specific needs. If you prioritize aesthetics and airflow flexibility, the ARCTIC P12 Pro Reverse may be the better choice. However, if you're looking for a proven air cooler with broad compatibility and efficient performance, the Thermalright Assassin X120 is a solid option. The slight price difference makes the Thermalright a more budget-friendly selection, while the ARCTIC offers unique features that can enhance your PC's appearance. Ultimately, both products have their strengths, and your decision should reflect your cooling needs and preferences.

