ARCTIC P14 PWM PST - PC Fans, vs Thermalright Peerless Assassin 120 SE CPU Cooler,
Updated August 2026 — ARCTIC P14 PWM PST - PC Fans, leads on durability and design.
The ARCTIC P14 PWM PST fans are the better choice for quiet operation and longevity, while the Thermalright Peerless Assassin excels in CPU cooling performance.
Why ARCTIC P14 PWM PST - PC Fans, is better
Cooling Efficiency
Optimized for static pressure, ideal for heatsinks.
Noise Level
Operates at a low noise level of 0.3 Sone.
Lifespan
Extended lifespan due to lower motor temperature.
Why Thermalright Peerless Assassin 120 SE CPU Cooler, is better
Cooling Power
Dual fans provide strong CPU cooling.
Airflow
Generates airflow of 66.17 CFM.
Brand Experience
Thermalright has over 20 years in CPU cooling.
Overall score
Specifications
| Spec | ARCTIC P14 PWM PST - PC Fans, | Thermalright Peerless Assassin 120 SE CPU Cooler, |
|---|---|---|
| Price | $40.99 | $49.99 |
| Static Pressure | 2.40 mmH₂O | N/A |
| Lifespan | 4x longer | N/A |
| Compatibility | Universal | Intel/AMD |
| Fan Type | Case Fan | CPU Cooler |
Dimension comparison
Overview of the ARCTIC P14 PWM PST and Thermalright Peerless Assassin 120 SE
The ARCTIC P14 PWM PST is a five-pack of 140mm case fans, priced at $40.99, while the Thermalright Peerless Assassin 120 SE CPU cooler retails for $49.99. Despite both being cooling solutions, they serve different purposes—one for case ventilation and the other for CPU cooling. The price difference is about 17%, making the ARCTIC fans the more economical choice for users looking to improve airflow in their computer cases.
Cooling Performance Comparison
When it comes to cooling performance, the ARCTIC P14 PWM PST is optimized for static pressure, making it especially effective on heatsinks and radiators. It operates at fan speeds ranging from 200 to 1700 RPM, with a noise level of only 0.3 Sone. In contrast, the Thermalright Peerless Assassin features dual 120mm PWM fans that can reach a speed of 1550 RPM, generating an airflow of 66.17 CFM. While both products are effective, the ARCTIC fans offer a broader speed range, which may provide more flexibility in cooling scenarios.
Noise Levels
The ARCTIC P14 PWM PST operates at a notably low noise level of 0.3 Sone, which is ideal for users who prioritize a quiet environment. On the other hand, the Thermalright Peerless Assassin has a noise level of up to 25.6 dB(A), which could be more noticeable in a quiet setup. If silence is a key factor in your decision-making, the ARCTIC fans stand out as the quieter option, making them suitable for noise-sensitive environments.
Durability and Lifespan
Durability is a crucial factor for both products. The ARCTIC P14 PWM PST boasts a significantly extended lifespan, attributed to a motor temperature that is designed to be 10 °C lower than average, effectively doubling the fan's longevity. This translates to a fourfold increase in service life due to lower coil temperatures. The Thermalright Peerless Assassin, while also built for durability, does not specify similar longevity features. Therefore, the ARCTIC fans may offer better long-term reliability.
Installation and Compatibility
Installation is straightforward for both products, but they cater to different needs. The ARCTIC P14 PWM PST comes as a five-pack, making it easier to add multiple fans to a case, enhancing overall airflow. The Thermalright Peerless Assassin is designed for specific CPU sockets, including Intel and AMD platforms, which could complicate installation if your motherboard does not support these configurations. For users looking for versatility in fan placement, the ARCTIC fans provide a more flexible installation option.
Brand Reputation and Popularity
Both brands have established a solid reputation in the cooling market, but they cater to different segments. ARCTIC is known for its innovative fan technology, focusing on quiet performance and efficiency. In contrast, Thermalright has over 20 years of experience in CPU cooling solutions and is well-regarded among PC enthusiasts. While both companies have their strengths, your choice may depend on your specific cooling needs—whether you prioritize case fans or CPU coolers.
Aesthetic Considerations
In terms of aesthetics, the ARCTIC P14 PWM PST features a sleek, all-black design that can seamlessly integrate into various builds. The Thermalright Peerless Assassin also sports a visually appealing dual-tower design, which could enhance the overall look of a gaming rig. If visual appeal is essential to you, consider how each product fits your build's design, as both offer distinct styles that could complement different setups.
Which should you buy?
Ultimately, the decision between the ARCTIC P14 PWM PST and the Thermalright Peerless Assassin 120 SE comes down to your specific cooling needs. If you require efficient case ventilation with an emphasis on quiet operation and longevity, the ARCTIC fans are the better choice, especially at $40.99. Conversely, if you're looking for a robust CPU cooler that can handle higher thermal loads and are willing to pay $49.99, the Thermalright Peerless Assassin may be more suitable. Both products have their merits, but understanding your requirements will lead to the best investment for your setup.

