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ARCTIC P9 Max - PC Fan, High-Performance vs Thermalright Peerless Assassin 120 SE V2 CPU

Updated August 2026 — ARCTIC P9 Max - PC Fan, High-Performance wins on noise level, Thermalright Peerless Assassin 120 SE V2 CPU wins on height and width.

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

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

Price

ARCTIC P9 Max is significantly cheaper at $9.99

Noise

ARCTIC P9 Max operates silently in 0dB mode

RPM Range

ARCTIC P9 Max has a wider RPM range of 450-4300 RPM

Why Thermalright Peerless Assassin 120 SE V2 CPU is better

Cooling Performance

Thermalright Peerless Assassin provides superior CPU cooling

Airflow

Thermalright Peerless Assassin has a higher maximum airflow of 88.89 CFM

Build Quality

Thermalright Peerless Assassin features a dual tower design with 6 heat pipes

Overall score

ARCTIC P9 Max - PC Fan, High-Performance
75
Thermalright Peerless Assassin 120 SE V2 CPU
85

Specifications

SpecARCTIC P9 Max - PC Fan, High-PerformanceThermalright Peerless Assassin 120 SE V2 CPU
RPM450-43001850
Airflow58.25 CFM88.89 CFM
Static Pressure6.17 mmH₂O2.21 mmH₂O
CompatibilityUniversalAMD/Intel
Bearing TypeFluid DynamicS-FDB

Dimension comparison

ARCTIC P9 Max - PC Fan, High-PerformanceThermalright Peerless Assassin 120 SE V2 CPU

Overview of ARCTIC P9 Max and Thermalright Peerless Assassin 120 SE V2

The ARCTIC P9 Max is priced at $9.99, while the Thermalright Peerless Assassin 120 SE V2 costs $38.99, making the ARCTIC fan about 74% cheaper. This price difference reflects the distinct purposes these products serve within the realm of cooling solutions. The ARCTIC P9 Max is a high-performance case fan optimized for static pressure, whereas the Thermalright Peerless Assassin is a dual tower CPU cooler designed for superior heat dissipation.

Performance Comparison

In terms of performance, the ARCTIC P9 Max boasts a wide RPM range of 450-4300 RPM, making it versatile for various cooling needs. With 58.25 CFM airflow and a static pressure of 6.17 mmH₂O, it is designed to efficiently cool even under high air resistance. On the other hand, the Thermalright Peerless Assassin features dual 120mm PWM fans that run up to 1850 RPM, delivering a maximum airflow of 88.89 CFM. While the ARCTIC fan can achieve higher RPMs, the Thermalright cooler benefits from its dual tower design and six heat pipes, providing more stable thermal performance for CPUs under heavy loads.

Design and Build Quality

The design of the ARCTIC P9 Max focuses on achieving high static pressure, which is crucial for mounting on heat sinks and radiators. Its fluid dynamic bearing ensures a long service life and silent operation at lower speeds. In contrast, the Thermalright Peerless Assassin has a dual tower structure, which enhances heat transfer efficiency. It also incorporates a copper base with nickel plating, providing a robust build quality. Both products are designed for their respective cooling roles, but the Thermalright cooler offers a more complex structure suited for CPU cooling.

Compatibility with Systems

The ARCTIC P9 Max is a versatile case fan that can be used in various setups due to its 4-pin PWM connector and compatibility with standard fan mounts. However, the Thermalright Peerless Assassin specifically supports AMD AM4/AM5 and Intel LGA1851/1700 platforms, making it a practical upgrade for users with these modern CPU sockets. This compatibility may be crucial for gamers and professionals looking to enhance their cooling solutions, as the Thermalright cooler targets specific high-performance applications.

Noise Levels

When it comes to noise levels, the ARCTIC P9 Max operates silently at lower speeds and can ramp up to higher RPMs when needed, although specific noise levels are not provided. The Thermalright Peerless Assassin has a rated noise level of 29.5 dBA at maximum speed, which is moderately quiet for a dual fan setup. Users who prioritize quiet operation might favor the ARCTIC fan for its ability to run silently in 0dB mode, while those needing robust CPU cooling might not mind the noise level of the Thermalright cooler during intense usage.

Value for Money

At $9.99, the ARCTIC P9 Max offers significant value, especially for users looking to enhance airflow in their cases without breaking the bank. In contrast, the Thermalright Peerless Assassin is priced at $38.99, which is about 290% higher. However, this higher price reflects its advanced cooling capabilities, making it a suitable option for those who require serious cooling for high-performance CPUs. Thus, the choice largely depends on the user's specific cooling needs and budget.

User Experience and Feedback

While specific sales rank data for both products is not provided, the ARCTIC P9 Max is known for its longevity and silent operation, making it a favorite among PC builders for case cooling. The Thermalright Peerless Assassin is recognized for its effective cooling performance, especially in demanding scenarios like gaming or content creation. Both products have their loyal user bases, but the choice will depend on whether the user prioritizes case airflow or CPU cooling capabilities.

Which should you buy?

Choosing between the ARCTIC P9 Max and the Thermalright Peerless Assassin 120 SE V2 ultimately comes down to your cooling needs and budget. If you're looking for an affordable case fan that provides excellent airflow and operates quietly, the ARCTIC P9 Max at $9.99 is a stellar choice. However, if you need a high-performance CPU cooler to manage heat during intensive tasks, the Thermalright Peerless Assassin at $38.99 offers superior cooling with its dual tower design and broad compatibility with modern CPUs.