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ARCTIC P9 Max - PC Fan, High-Performance vs Thermalright Assassin X120 Refined SE CPU Air

Updated July 2026 — ARCTIC P9 Max - PC Fan, High-Performance wins on depth, Thermalright Assassin X120 Refined SE CPU Air wins on rpm range and height.

The ARCTIC P9 Max is a budget-friendly, versatile case fan, while the Thermalright Assassin X120 excels as a specialized CPU cooler. Choose based on your specific cooling needs.

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

Price

The ARCTIC P9 Max is significantly cheaper.

Noise Level

The P9 Max operates quieter in low RPM.

Size

The P9 Max is more compact for various cases.

Why Thermalright Assassin X120 Refined SE CPU Air is better

Cooling Performance

The Assassin X120 has higher airflow.

Heat Dissipation

Four heat pipes enhance cooling efficiency.

Build Quality

The aluminum heatsink cover adds durability.

Overall score

ARCTIC P9 Max - PC Fan, High-Performance
75
Thermalright Assassin X120 Refined SE CPU Air
85

Specifications

SpecARCTIC P9 Max - PC Fan, High-PerformanceThermalright Assassin X120 Refined SE CPU Air
Airflow58.25 CFM66.17 CFM
Static Pressure6.17 mmH₂ON/A
Noise Level0 dB25.6 dB(A)
Connector4-pin4-pin
CompatibilityCase FanCPU Cooler

Dimension comparison

ARCTIC P9 Max - PC Fan, High-PerformanceThermalright Assassin X120 Refined SE CPU Air

Overview of the ARCTIC P9 Max and Thermalright Assassin X120

The ARCTIC P9 Max is a high-performance 92 mm PWM case fan priced at $9.99, while the Thermalright Assassin X120 Refined SE CPU Air Cooler retails for $17.90. The price difference is about 79%, making the ARCTIC fan a more budget-friendly option. Both products cater to cooling needs, but they serve different functions within a PC setup, with the P9 Max designed as a case fan and the Assassin X120 as a CPU cooler.

Design and Build Quality

The ARCTIC P9 Max features a sleek black design, optimized for static pressure, and operates silently in its 0dB mode. Its 4-pin connector allows for PWM speed control, enabling it to run between 450 and 4300 RPM. In contrast, the Thermalright Assassin X120 boasts an aluminum heatsink cover and is equipped with four heat pipes, promoting efficient heat dissipation. While the ARCTIC fan is compact, the Assassin X120 is bulkier, built to fit medium-sized computer cases.

Performance Metrics

The ARCTIC P9 Max operates at a maximum airflow of 58.25 CFM (cubic feet per minute) and achieves a static pressure of 6.17 mmH₂O, ensuring efficient cooling even under high air resistance. On the other hand, the Thermalright Assassin X120 has a maximum airflow of 66.17 CFM with a fan speed of 1550 RPM, producing noise levels of up to 25.6 dB(A). Although both products excel in cooling performance, the Assassin X120 is designed to handle CPU temperatures specifically, whereas the P9 Max is more versatile for case ventilation.

Noise Levels

The ARCTIC P9 Max is designed for silent operation, particularly when running at lower speeds, thanks to its fluid dynamic bearing technology. This feature contributes to a noise level that is considerably low, especially in its 0dB mode. In contrast, the Thermalright Assassin X120 operates at a noise level of 25.6 dB(A) at maximum speed. While this is relatively quiet for a CPU cooler, the P9 Max is likely to provide a quieter experience, especially in situations where minimal noise is crucial, such as gaming or streaming.

Compatibility and Installation

The ARCTIC P9 Max is designed to be flexible with its installation, making it suitable for a variety of cases and cooling setups. Its 4-pin fan connector facilitates easy integration into any compatible motherboard. Conversely, the Thermalright Assassin X120 supports a wide range of CPU sockets, including AMD AM4/AM5 and Intel LGA 1150/1151/1155/1200/1700/1851. It comes with metal fasteners for easy installation, though its bulkier size may require more consideration during setup.

Brand Reputation

ARCTIC is known for its commitment to performance and quality at competitive prices, making it a popular choice among budget-conscious PC builders. The P9 Max is a testament to this philosophy, delivering high performance for its price. Thermalright, with over 20 years of development, has established itself as a key player in the cooling market, particularly appreciated for its innovative designs and effective cooling solutions. While both brands have their strengths, users may gravitate toward ARCTIC for cost-effectiveness and Thermalright for specialized CPU cooling expertise.

User Experience and Feedback

While specific sales rank data for these products is not available, customer feedback typically highlights the ARCTIC P9 Max for its ease of installation and quiet operation, making it a solid choice for case cooling. Users of the Thermalright Assassin X120 often commend its efficient cooling performance under load, especially in gaming scenarios. This split in user experience reflects the distinct roles that each product plays in a PC build, with the P9 Max suited for general airflow and the Assassin X120 tailored for CPU cooling.

Which should you buy?

Choosing between the ARCTIC P9 Max and the Thermalright Assassin X120 ultimately depends on your cooling needs. If you're looking for an affordable, versatile case fan that operates quietly and offers a wide RPM range, the ARCTIC P9 Max at $9.99 is an excellent choice. However, if you require a specialized CPU cooler that can manage high thermal loads efficiently, the Thermalright Assassin X120 at $17.90 provides superior performance with its advanced heat pipe technology. Each product excels in its area, so your decision should align with your specific cooling requirements and budget.