ARCTIC P9 Max - PC Fan, High-Performance vs Thermalright Peerless Assassin 120 SE V3 CPU Air
Updated August 2026 — ARCTIC P9 Max - PC Fan, High-Performance wins on noise level, Thermalright Peerless Assassin 120 SE V3 CPU Air wins on compatibility and build quality.
The ARCTIC P9 Max is a budget-friendly case fan with excellent performance, while the Thermalright Peerless Assassin offers superior CPU cooling capabilities. Choose based on your specific needs.
Why ARCTIC P9 Max - PC Fan, High-Performance is better
Price
ARCTIC P9 Max is significantly cheaper at $9.99.
Noise Levels
ARCTIC P9 Max operates silently below 5% PWM.
RPM Range
ARCTIC P9 Max has a wider RPM range of 450-4300.
Why Thermalright Peerless Assassin 120 SE V3 CPU Air is better
Cooling Efficiency
Thermalright Peerless Assassin has superior cooling with dual fans.
Build Quality
Thermalright features a robust double-tower design.
Airflow
Thermalright Peerless Assassin delivers higher airflow at 70.84 CFM.
Overall score
Specifications
| Spec | ARCTIC P9 Max - PC Fan, High-Performance | Thermalright Peerless Assassin 120 SE V3 CPU Air |
|---|---|---|
| Max RPM | 4300 | 2000 |
| Airflow | 58.25 CFM | 70.84 CFM |
| Static Pressure | 6.17 mmH₂O | 2.63 mmH₂O |
| Noise Level | 0 dB | 29.8 dB |
| Compatibility | Case Fan | CPU Cooler |
Dimension comparison
Overview of the Products
The ARCTIC P9 Max and the Thermalright Peerless Assassin 120 SE V3 are both noteworthy contenders in the realm of cooling solutions, yet they serve different purposes. The ARCTIC P9 Max is a high-performance PC fan designed for case ventilation, while the Thermalright Peerless Assassin 120 SE V3 is a dedicated CPU air cooler. Understanding their distinct features and capabilities will help you make an informed decision.
Design and Build Quality
In terms of design, the ARCTIC P9 Max offers a sleek black appearance, optimized for static pressure with a fluid dynamic bearing for silent operation. In contrast, the Thermalright Peerless Assassin features a more robust double-tower structure with dual fans, designed for superior heat dissipation. The inclusion of six heat pipes and an aluminum heatsink cover adds to its build quality, ensuring durability. The ARCTIC fan is designed for performance in tight spaces, while the Thermalright’s design is intended for maximum cooling efficiency.
Performance and Cooling Efficiency
When it comes to performance, the ARCTIC P9 Max operates within a wide RPM range of 450 to 4300 RPM, delivering an airflow of 58.25 CFM. This flexibility allows it to adapt to varying cooling needs, particularly in cases with higher air resistance. On the other hand, the Thermalright cooler’s dual fans can reach speeds of up to 2000 RPM, producing an airflow of 70.84 CFM. While the P9 Max is optimized for static pressure, the Peerless Assassin excels in overall cooling efficiency due to its dual-fan setup and heat pipe technology.
Noise Levels
Noise levels are an important consideration for many PC builders. The ARCTIC P9 Max can operate silently below 5% PWM, making it an excellent option for users who prioritize quiet operation. The Thermalright Peerless Assassin, with a maximum operating noise level of 29.8 dB, is relatively quiet as well, but it may not match the near-silent performance of the ARCTIC fan when operating at lower speeds. For those who value a serene computing experience, the ARCTIC P9 Max stands out in this category.
Compatibility and Installation
The ARCTIC P9 Max is designed primarily as a case fan, making it compatible with a wide range of PC cases. Its 4-pin connector allows for easy installation and PWM control. On the flip side, the Thermalright Peerless Assassin is compatible with both Intel and AMD platforms, including the latest generation of CPUs. However, its installation may require more attention to detail, as it necessitates the use of the motherboard’s original backplate for AMD setups. This additional complexity might be a consideration for novice builders.
Price Point
Price plays a significant role in decision-making, and here the ARCTIC P9 Max is significantly more affordable at $9.99, compared to the Thermalright Peerless Assassin, which retails for $35.90. This means the ARCTIC fan is approximately 72% cheaper than its counterpart. For those on a budget or looking for a straightforward case cooling solution, the ARCTIC P9 Max presents a compelling option without compromising performance.
Target Audience
Each product caters to a different target audience. The ARCTIC P9 Max is ideal for gamers or PC builders looking to enhance case airflow without breaking the bank. Its performance capabilities make it suitable for various setups, particularly where space is limited. Alternatively, the Thermalright Peerless Assassin targets users who require robust CPU cooling, especially in high-performance builds where thermal management is critical. The dual-tower design and advanced heat pipe technology make it a go-to for overclockers and high-performance users.
Overall Value
In assessing overall value, the ARCTIC P9 Max offers an exceptional price-to-performance ratio for a case fan, making it an attractive choice for budget-conscious builders. However, the Thermalright Peerless Assassin, while more expensive, provides superior cooling capabilities and compatibility for high-end CPUs. The additional features and cooling efficiency may justify the higher price for those seeking optimal performance from their cooling solutions.
Which should you buy?
Ultimately, the choice between the ARCTIC P9 Max and the Thermalright Peerless Assassin 120 SE V3 boils down to your specific cooling needs and budget. If you are looking for a budget-friendly, high-performance case fan, the ARCTIC P9 Max is the clear winner. Conversely, if you require a powerful CPU cooler capable of handling demanding tasks, the Thermalright Peerless Assassin is worth the investment for its advanced cooling technology and compatibility.

