ARCTIC P9 Max - PC Fan, High-Performance vs Thermalrlght Peerless Assassin 120 SE CPU Air
Updated August 2026 — ARCTIC P9 Max - PC Fan, High-Performance wins on noise level, Thermalrlght Peerless Assassin 120 SE CPU Air wins on compatibility and build quality.
The ARCTIC P9 Max offers excellent value for budget-conscious users, while the Thermalrlght Peerless Assassin excels in advanced CPU cooling performance.
Why ARCTIC P9 Max - PC Fan, High-Performance is better
Price
ARCTIC P9 Max is significantly cheaper at $9.99.
Noise Level
ARCTIC P9 Max operates silently in 0dB mode.
Versatility
ARCTIC P9 Max is suitable for various applications.
Why Thermalrlght Peerless Assassin 120 SE CPU Air is better
Cooling Performance
Thermalrlght Peerless Assassin has superior airflow at 66.17 CFM.
Build Quality
Thermalrlght Peerless Assassin features a dual-tower heatsink.
Heat Pipes
Thermalrlght Peerless Assassin has six heat pipes for better heat exchange.
Overall score
Specifications
| Spec | ARCTIC P9 Max - PC Fan, High-Performance | Thermalrlght Peerless Assassin 120 SE CPU Air |
|---|---|---|
| RPM Range | 450-4300 | 1550 |
| Noise Level | 0 dB | ≤25.6 dB(A) |
| Static Pressure | 6.17 mmH₂O | Not specified |
| Connector | 4-pin PWM | 4-pin PWM |
| Material | Plastic | Aluminum/Copper |
Dimension comparison
Overview
In this comparison, we will evaluate the ARCTIC P9 Max PC Fan and the Thermalrlght Peerless Assassin 120 SE CPU Air Cooler. The ARCTIC P9 Max is priced at $9.99, making it an attractive option for budget-conscious users looking for a high-performance fan. In contrast, the Thermalrlght Peerless Assassin 120 SE is significantly more expensive at $32.90, with features that cater to users seeking robust cooling solutions for their CPUs.
Design and Build Quality
The ARCTIC P9 Max features a sleek black design optimized for static pressure, which is essential for maintaining airflow in spaces with high resistance. Its fluid dynamic bearing ensures a long service life and silent operation, particularly at lower speeds. On the other hand, the Thermalrlght Peerless Assassin 120 SE boasts a dual-tower heatsink design made with aluminum and copper materials. Its anodized brushed black cover not only enhances aesthetics but also contributes to better thermal performance. While both products exhibit solid build quality, the Peerless Assassin offers more extensive cooling options due to its dual heatsink configuration.
Cooling Performance
When it comes to cooling performance, the ARCTIC P9 Max operates within a wide RPM range of 450 to 4300, providing airflow of 58.25 CFM. This range allows for effective cooling in various situations, especially when employed with heat sinks or radiators. Conversely, the Thermalrlght Peerless Assassin 120 SE features dual TL-C12C PWM fans that can push 66.17 CFM at maximum speed, contributing to its superior cooling capabilities. The six heat pipes equipped with AGHP technology further enhance heat exchange, making it ideal for high-performance CPUs.
Noise Level
The ARCTIC P9 Max excels in noise management, particularly in its 0dB mode, which allows the fan to operate silently at low speeds. This feature is beneficial for users who prioritize quiet operation in their builds. The Thermalrlght Peerless Assassin, although offering higher airflow, has a rated noise level of up to 25.6 dB(A). While this is relatively quiet for a CPU cooler, it may not satisfy users desiring the absolute silence that the ARCTIC fan can provide.
Installation and Compatibility
The ARCTIC P9 Max is designed for versatility, making it suitable for various applications, including heat sinks and radiators. Its 4-pin connector simplifies installation and compatibility with most systems. In contrast, the Thermalrlght Peerless Assassin requires an SS2 installation system and is compatible with a broader range of CPU sockets, including Intel LGA 1700 and AMD AM4/AM5. However, users must ensure that their motherboard's built-in backplate is available for installation, which may present additional considerations.
Target Audience
The ARCTIC P9 Max is an excellent option for users who need a cost-effective cooling solution, especially for case fans or secondary cooling. With its competitive price of $9.99, it is suited for budget builds or as an upgrade to existing systems. In contrast, the Thermalrlght Peerless Assassin targets enthusiasts and gamers who demand higher performance cooling and have a bit more to spend. Its price of $32.90 reflects this premium positioning, catering to users who prioritize CPU cooling in high-performance setups.
Value for Money
With a price tag of $9.99, the ARCTIC P9 Max offers remarkable value for its features and performance, making it about 70% cheaper than the Thermalrlght Peerless Assassin. For users who require a simple yet effective cooling solution for their cases or radiators, the ARCTIC fan represents a compelling choice. However, for those needing advanced cooling features, the Thermalrlght's higher price could be justified by its superior performance and build quality.
Which should you buy?
If you are looking for a budget-friendly cooling option, the ARCTIC P9 Max is the clear winner, offering excellent performance at a significantly lower price. However, if you need advanced CPU cooling with extensive compatibility and superior performance, the Thermalrlght Peerless Assassin 120 SE is worth the investment. Ultimately, your choice should depend on your specific cooling needs and budget constraints.

