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ARCTIC P9 Max - PC Fan, High-Performance vs Thermalright Peerless Assassin 120 Black CPU Air

Updated August 2026 — ARCTIC P9 Max - PC Fan, High-Performance wins on noise level and static pressure, Thermalright Peerless Assassin 120 Black CPU Air wins on compatibility and build quality.

The ARCTIC P9 Max is a budget-friendly case fan ideal for airflow, while the Thermalright Peerless Assassin 120 excels in CPU cooling performance. Choose based on your specific needs.

Why ARCTIC P9 Max - PC Fan, High-Performance is better

Price

ARCTIC P9 Max is significantly cheaper.

Noise Level

ARCTIC P9 Max operates silently at low speeds.

RPM Range

ARCTIC P9 Max has a wide RPM range.

Why Thermalright Peerless Assassin 120 Black CPU Air is better

Cooling Performance

Thermalright Peerless Assassin 120 has superior cooling capabilities.

Airflow

Thermalright Peerless Assassin 120 offers higher airflow.

Heat Dissipation

Thermalright Peerless Assassin 120 has advanced heat dissipation technology.

Overall score

ARCTIC P9 Max - PC Fan, High-Performance
75
Thermalright Peerless Assassin 120 Black CPU Air
88

Specifications

SpecARCTIC P9 Max - PC Fan, High-PerformanceThermalright Peerless Assassin 120 Black CPU Air
Max RPM43001500
Static Pressure6.17 mmH₂ON/A
Noise Level0 dB25.6 dB(A)
Heat PipesN/A6
TDP SupportN/A245W

Dimension comparison

ARCTIC P9 Max - PC Fan, High-PerformanceThermalright Peerless Assassin 120 Black CPU Air

Overview of the Products

In this comparison, we will explore the ARCTIC P9 Max PC Fan and the Thermalright Peerless Assassin 120 Black CPU Air Cooler. The ARCTIC P9 Max is a high-performance 92 mm PWM case fan priced at $9.99, while the Thermalright Peerless Assassin 120, featuring 6 heat pipes and dual fans, is available for $38.90. These products target different segments of the cooling market, with the fan focusing on case ventilation and the cooler aimed at CPU temperature management.

Design and Build Quality

The design and build quality of both products are tailored for their specific purposes. The ARCTIC P9 Max features a fluid dynamic bearing for silent operation and durability, ensuring long service life. Its construction aims at delivering high static pressure, making it suitable for use on heat sinks and radiators. On the other hand, the Thermalright Peerless Assassin 120 is constructed with an aluminum heatsink cover and employs a unique AGHP technique for effective heat dissipation. Its dual tower design is visually striking and functional, aimed at maximizing cooling performance through a larger effective heat dissipation area of 9600 cm.

Cooling Performance

When it comes to cooling performance, both products excel in their respective areas. The ARCTIC P9 Max boasts a wide RPM range from 450 to 4300, offering flexibility in airflow and static pressure, which is crucial for maintaining system temperatures. Its airflow rating is 58.25 CFM, ensuring efficient cooling under various conditions. In contrast, the Thermalright Peerless Assassin 120 features a maximum airflow of 66.17 CFM from its dual PWM fans, and its advanced cooling technology allows it to handle CPU TDPs of up to 245W. This makes it particularly effective for high-performance CPUs, providing superior cooling compared to a standard case fan.

Noise Levels

Noise levels are a significant consideration for users who prioritize a quiet computing environment. The ARCTIC P9 Max operates silently at low speeds, being particularly effective in 0 dB mode when the fan is below 5% PWM. This feature allows for virtually silent operation during light workloads. Conversely, the Thermalright Peerless Assassin 120 operates at a maximum noise level of 25.6 dB(A), which is relatively quiet for a CPU cooler, especially considering the dual-fan setup. Users seeking silence might find the ARCTIC P9 Max more appealing, while those requiring robust CPU cooling may accept the slightly higher noise levels from the Thermalright.

Ease of Installation

Installation is another important factor to consider when selecting cooling solutions. The ARCTIC P9 Max, being a fan, typically requires minimal effort to install, especially in cases designed for 92 mm fans. Its 4-pin connector facilitates easy PWM connection to motherboards. The Thermalright Peerless Assassin 120, while also designed for straightforward installation, includes specific mounting hardware for various CPU sockets, including Intel and AMD platforms. This added complexity may require more time and effort for installation but ensures compatibility across a wider range of systems.

Price Comparison

The price difference between the two products is notable. The ARCTIC P9 Max is priced at $9.99, making it about 74% cheaper than the Thermalright Peerless Assassin 120, which retails for $38.90. This significant price gap reflects the difference in functionality between a case fan and a dedicated CPU cooler. Buyers with a limited budget might find the ARCTIC P9 Max more appealing, while those willing to invest more for exceptional CPU cooling performance may opt for the Thermalright.

Target Audience

The target audience for these products varies significantly. The ARCTIC P9 Max is aimed at users looking to enhance airflow within their PC cases without significant investment, making it ideal for budget-conscious gamers or general users. The Thermalright Peerless Assassin 120, however, targets enthusiasts and professionals who require superior cooling for high-performance CPUs, making it more suitable for gaming and workstation builds. The additional features and higher price point reflect the demands of this audience.

Which should you buy?

Choosing between the ARCTIC P9 Max and the Thermalright Peerless Assassin 120 ultimately depends on your cooling needs and budget. If you are looking for a cost-effective solution to improve case airflow, the ARCTIC P9 Max offers excellent performance at a fraction of the price. However, if you require robust cooling for a high-performance CPU and are willing to invest more, the Thermalright Peerless Assassin 120 is the superior choice with its advanced cooling technology and dual-fan setup. Consider your specific requirements and budget before making a decision.