ARCTIC P14 PWM PST - PC Fans, vs Thermalright Peerless Assassin 120 Black CPU Air
Updated August 2026 — ARCTIC P14 PWM PST - PC Fans, wins on longevity and cooling efficien, Thermalright Peerless Assassin 120 Black CPU Air wins on compatibility.
The ARCTIC P14 PWM PST excels in quiet operation and versatility, while the Thermalright Peerless Assassin 120 Black offers robust CPU cooling. Choose based on your specific needs.
Why ARCTIC P14 PWM PST - PC Fans, is better
Noise Level
ARCTIC operates at 0.3 Sone, significantly quieter than Thermalright's 25.6 dB(A)
Airflow
ARCTIC provides 72.8 CFM airflow, higher than Thermalright's 66.17 CFM
Lifespan
ARCTIC fans have a longer lifespan due to lower motor temperatures
Why Thermalright Peerless Assassin 120 Black CPU Air is better
Cooling Capacity
Thermalright supports a TDP of 245W, suitable for high-performance CPUs
Design
Thermalright features a dual tower design for better heat dissipation
Compatibility
Thermalright supports multiple CPU sockets for broader compatibility
Overall score
Specifications
| Spec | ARCTIC P14 PWM PST - PC Fans, | Thermalright Peerless Assassin 120 Black CPU Air |
|---|---|---|
| Airflow | 72.8 CFM | 66.17 CFM |
| Noise Level | 0.3 Sone | 25.6 dB(A) |
| Static Pressure | 2.40 mmH₂O | N/A |
| TDP Support | N/A | 245W |
| Fan Count | 5 | 2 |
Dimension comparison
Overview of the Products
The ARCTIC P14 PWM PST and the Thermalright Peerless Assassin 120 Black CPU Air Cooler are both notable products in the cooling market, each designed for different applications. The ARCTIC P14 PWM PST is a set of five 140mm case fans priced at $40.99, while the Thermalright Peerless Assassin 120 Black is a CPU cooler retailing at $38.90. Despite their differences, both products aim to enhance cooling efficiency in computer systems.
Design and Build Quality
The ARCTIC P14 PWM PST features a design optimized for static pressure, making it particularly effective for heatsinks and radiators. Its quiet motor allows for operation between 200 to 1700 RPM, while the new generation Neodym-Iron-Boron magnet ring enhances efficiency. In contrast, the Thermalright Peerless Assassin 120 Black boasts a dual tower design with a sleek black finish, promoting better heat dissipation with its 6 heat pipes. Both products emphasize durability, with the ARCTIC fan having an extended lifespan due to lower motor temperatures, while the Thermalright cooler is designed for compatibility across various CPU sockets.
Cooling Performance
When it comes to cooling performance, the ARCTIC P14 PWM PST excels with a maximum airflow of 72.8 CFM and a static pressure of 2.40 mmH₂O. This ensures efficient cooling even under load. The Thermalright Peerless Assassin 120 Black also delivers impressive cooling, rated for a TDP of 245W, which is suitable for high-performance systems. The dual fans in the Thermalright cooler operate at a speed of about 1500 RPM, contributing to its cooling efficiency. While both products provide strong cooling capabilities, the choice may depend on whether you need case fans or a dedicated CPU cooler.
Noise Levels
The ARCTIC P14 PWM PST operates at a noise level of just 0.3 Sone, making it an excellent choice for users seeking a quiet computing experience. This low noise output is particularly beneficial in environments where sound levels matter. Conversely, the Thermalright Peerless Assassin 120 Black has a maximum noise level of 25.6 dB(A). While this is relatively quiet, it does not match the near-silent operation of the ARCTIC fans. Therefore, for those prioritizing noise reduction, the ARCTIC fans may be the better option.
Installation and Compatibility
The ARCTIC P14 PWM PST is versatile and can be easily installed in various cases, thanks to its standard 140mm size and 4-pin connector. It is particularly suited for setups that require additional case fans. The Thermalright Peerless Assassin 120 Black, on the other hand, comes with specific mounting hardware for both Intel and AMD platforms, making it compatible with a wide range of CPUs. Its dimensions (125x135x157 mm) require careful consideration during installation to ensure it fits within the case. Users should assess their needs based on the type and specifications of their systems.
Price Comparison
The ARCTIC P14 PWM PST is priced at $40.99, while the Thermalright Peerless Assassin 120 Black is slightly cheaper at $38.90. This makes the Thermalright cooler about 2.67% less expensive than the ARCTIC fans. However, considering that the ARCTIC product comes in a five-pack, it offers more units for a slightly higher price. Customers need to determine whether they value additional fans or a dedicated CPU cooler based on their budget and cooling requirements.
Brand Reputation
ARCTIC is well-known for its high-quality cooling solutions, particularly in the fan segment, emphasizing efficiency and quiet operation. The brand has a solid reputation among PC builders and gamers alike. Thermalright, while also respected, is particularly noted for its CPU coolers and has carved out a niche in high-performance cooling. Users might consider brand loyalty and past experiences when making a choice between these two reputable manufacturers.
Which should you buy?
Choosing between the ARCTIC P14 PWM PST and the Thermalright Peerless Assassin 120 Black ultimately depends on your specific needs. If you require versatile, high-performance case fans with low noise levels, the ARCTIC P14 PWM PST is the better choice, especially given its optimized design for static pressure and extended lifespan. On the other hand, if you're looking for a dedicated CPU cooler that provides excellent heat dissipation and compatibility across multiple platforms, the Thermalright Peerless Assassin 120 Black offers strong cooling capabilities at a slightly lower price. Assess your system's requirements and preferences to make the best decision.

