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ARCTIC P14 PWM PST - PC Fans, vs Thermalright Peerless Assassin 120 Mini Black CPU

Updated August 2026 — ARCTIC P14 PWM PST - PC Fans, leads on longevity and cooling efficien.

The ARCTIC P14 PWM PST excels in noise performance and longevity, making it the better choice for case cooling, while the Thermalright Peerless Assassin offers solid CPU cooling at a lower price.

Why ARCTIC P14 PWM PST - PC Fans, is better

Noise Level

ARCTIC P14 operates at 0.3 Sone, quieter than Thermalright's 25.6 dB(A)

Lifespan

ARCTIC P14 has a lifespan four times longer than predecessors

RPM Range

ARCTIC P14 has a broader RPM range of 200-1700 RPM

Why Thermalright Peerless Assassin 120 Mini Black CPU is better

Price

Thermalright Peerless Assassin is cheaper at $34.39

Heat Pipes

Thermalright features 6 heat pipes for effective heat dissipation

Size

Thermalright is compact, fitting in smaller builds

Overall score

ARCTIC P14 PWM PST - PC Fans,
85
Thermalright Peerless Assassin 120 Mini Black CPU
78

Specifications

SpecARCTIC P14 PWM PST - PC Fans,Thermalright Peerless Assassin 120 Mini Black CPU
BrandARCTICThermalright
TypeCase FanCPU Cooler
RPM Range200-17001500
Airflow (CFM)72.866.87
Noise Level (dB)0.325.6

Dimension comparison

ARCTIC P14 PWM PST - PC Fans,Thermalright Peerless Assassin 120 Mini Black CPU

Overview of the Products

The ARCTIC P14 PWM PST and the Thermalright Peerless Assassin 120 Mini Black are both designed for effective cooling in PC builds, but they serve different purposes. The ARCTIC P14 PWM PST is a pack of PC case fans, while the Thermalright Peerless Assassin is a CPU cooler. The price of the ARCTIC P14 is $40.99, making it about 17% more expensive than the Thermalright Peerless Assassin, which is priced at $34.39.

Cooling Efficiency

The ARCTIC P14 PWM PST is optimized for static pressure, providing efficient cooling even with high air resistance. This makes it particularly suitable for use on heatsinks and radiators, with a fan speed that ranges from 200 to 1700 RPM. In contrast, the Thermalright Peerless Assassin utilizes six heat pipes and AGHP technology, ensuring excellent heat dissipation. Its PWM fan operates at a maximum speed of 1500 RPM, with an airflow of 66.87 CFM. While both products excel in cooling, the P14's broader RPM range gives it a slight edge in versatility.

Noise Levels

Noise is a critical factor for PC enthusiasts, and both products perform admirably in this regard. The ARCTIC P14 PWM PST boasts a noise level of just 0.3 Sone, allowing for near-silent operation during low RPMs. The Thermalright Peerless Assassin has a maximum noise level of 25.6 dB(A), which is still relatively quiet but not as silent as the ARCTIC fan. For users seeking the quietest operation, the ARCTIC P14 is the better choice due to its lower noise output.

Lifespan and Durability

Durability is a key consideration in any cooling solution. The ARCTIC P14 is designed with a motor that has a significantly lower temperature, potentially doubling its lifespan compared to traditional fans. This fan is rated for a service life that is four times longer than its predecessors. Meanwhile, the Thermalright Peerless Assassin's fan features an industrial life expectancy of up to 20,000 hours, which is respectable but still less than what the ARCTIC P14 offers. Therefore, if longevity is a priority, the ARCTIC P14 stands out.

Design and Aesthetics

When it comes to design, both products have their unique appeal. The ARCTIC P14 features a sleek black design that integrates well into most builds, particularly those emphasizing efficiency and performance. The Thermalright Peerless Assassin, with its fully blackened body and CNC precision micro-engraved copper base, brings a more robust aesthetic to the table. Both options are visually appealing, but the choice may come down to personal preference in terms of style.

Installation and Compatibility

Installation is crucial for any cooling solution. The ARCTIC P14 PWM PST comes as a five-pack, making it easy to equip multiple areas within a PC case, and its 4-pin connector facilitates straightforward installation. The Thermalright Peerless Assassin is also designed for a wide range of CPU sockets, compatible with both Intel and AMD platforms. However, the ARCTIC fans may offer greater flexibility for cooling multiple components within a system, while the Thermalright is specifically aimed at CPU cooling.

Brand Reputation

Both brands are well-respected in the cooling market, but they cater to slightly different user bases. ARCTIC has a reputation for providing high-performance cooling solutions at competitive prices, while Thermalright is known for its innovative designs and effective cooling solutions. The ARCTIC P14 has established itself as a reliable choice for case fans, while the Thermalright Peerless Assassin is lauded for its effective CPU cooling capabilities. The choice between them may depend on brand loyalty and specific user needs.

Which should you buy?

Deciding between the ARCTIC P14 PWM PST and the Thermalright Peerless Assassin 120 Mini Black ultimately depends on your cooling needs. If you require multiple fans for case cooling with exceptional noise performance and longevity, the ARCTIC P14, despite being pricier at $40.99, is the superior choice. However, if you need a solid CPU cooler that offers good performance at a lower price of $34.39, the Thermalright Peerless Assassin is an excellent option. Each product excels in its category, so your decision should align with your specific cooling requirements.