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ARCTIC P12 PWM PST A-RGB - PC Fan vs Thermalright Peerless Assassin 120 SE CPU Air Cooler

Updated August 2026The ARCTIC P12 PWM PST A-RGB offers great aesthetics and value, while the Thermalright Peerless Assassin excels in CPU cooling performance. Choose based on your specific needs.

The ARCTIC P12 PWM PST A-RGB offers great aesthetics and value, while the Thermalright Peerless Assassin excels in CPU cooling performance. Choose based on your specific needs.

Why ARCTIC P12 PWM PST A-RGB - PC Fan is better

price

ARCTIC P12 is £10.41 cheaper

aesthetics

ARCTIC P12 features A-RGB lighting

installation

ARCTIC P12 has an integrated Y-splitter for easy setup

Why Thermalright Peerless Assassin 120 SE CPU Air Cooler is better

cooling performance

Thermalright Peerless Assassin has higher airflow (66.17 CFM)

build quality

Thermalright Peerless Assassin features a robust double tower design

compatibility

Thermalright Peerless Assassin supports more CPU sockets

Overall score

ARCTIC P12 PWM PST A-RGB - PC Fan
75
Thermalright Peerless Assassin 120 SE CPU Air Cooler
85

Specifications

SpecARCTIC P12 PWM PST A-RGB - PC FanThermalright Peerless Assassin 120 SE CPU Air Cooler
Price£16.49£26.90
Noise Level0.3 Sone25.6 dB(A)
LEDs12 A-RGBNone
Fan TypeSingleDual
Static Pressure1.85 mmH₂ONot specified

Dimension comparison

ARCTIC P12 PWM PST A-RGB - PC FanThermalright Peerless Assassin 120 SE CPU Air Cooler

Overview of the Products

The ARCTIC P12 PWM PST A-RGB - PC Fan and the Thermalright Peerless Assassin 120 SE CPU Air Cooler serve distinct purposes in a computer's cooling architecture. The ARCTIC fan is designed primarily for airflow and case cooling, while the Thermalright cooler focuses on dissipating heat from the CPU. Priced at £16.49, the ARCTIC fan is more budget-friendly compared to the £26.90 Thermalright cooler. Understanding these differences will help users make informed decisions based on their specific cooling needs.

Design and Aesthetics

The ARCTIC P12 boasts a modern design with 12 A-RGB LEDs integrated into its hub, offering vibrant and even illumination. This aesthetic appeal makes it an attractive option for gamers and PC enthusiasts who enjoy showcasing their builds. In contrast, the Thermalright Peerless Assassin has a more utilitarian design, prioritising function over form. With its double tower cooling system and a robust build, it measures 125(L)x135(W)x155(H)mm. While it may lack the flashy RGB lighting of the ARCTIC fan, its design supports optimal cooling performance.

Cooling Performance

The ARCTIC P12 fan achieves a fan speed of 2000 RPM, providing an airflow of 48.80 CFM. This performance makes it suitable for various applications, including heat sinks and radiators, ensuring efficient cooling even under pressure. On the other hand, the Thermalright Peerless Assassin offers a maximum airflow of 66.17 CFM with its dual PWM fans, operating at a speed of 1550 RPM. This higher airflow capability indicates that the Thermalright cooler may excel in maintaining lower CPU temperatures during demanding tasks.

Noise Levels

In terms of noise, the ARCTIC P12 is rated at a noise level of 0.3 Sone, which translates to a quiet operational profile, ideal for users who prefer a tranquil computing environment. The Thermalright Peerless Assassin operates at a maximum noise level of 25.6 dB(A), which is relatively quiet for a CPU cooler. However, it is slightly louder than the ARCTIC fan, making it a consideration for those prioritising silence in their build.

Installation and Compatibility

The ARCTIC P12 features an integrated Y-splitter for both fan and A-RGB cables, simplifying the installation process and allowing for easy control of multiple fans. This user-friendly design is perfect for PC builders looking for simplicity. In contrast, the Thermalright Peerless Assassin comes equipped with metal fasteners compatible with both Intel and AMD platforms, ensuring broad compatibility across various CPU sockets, including the latest AM5 and LGA1700. This adaptability makes it a versatile choice for builders using different systems.

Brand Reputation

ARCTIC is known for its focus on cooling solutions, emphasising performance and aesthetic design with its products, particularly in the gaming community. The ARCTIC P12 reflects this ethos with its combination of good airflow and eye-catching design. On the other hand, Thermalright has over 20 years of experience in the cooling industry, establishing a strong reputation for effective thermal solutions. The Peerless Assassin's dual tower design and advanced cooling techniques, such as the AGHP technique, demonstrate Thermalright's commitment to delivering high-performance cooling products.

Price Comparison

With the ARCTIC P12 priced at £16.49 and the Thermalright Peerless Assassin at £26.90, there is a notable price difference of £10.41. This makes the ARCTIC fan a more economical choice, especially for those looking to enhance their case cooling without breaking the bank. However, the slightly higher investment in the Thermalright cooler may be justified for users seeking superior CPU cooling performance, particularly in high-load scenarios.

Which should you buy?

Choosing between the ARCTIC P12 PWM PST A-RGB - PC Fan and the Thermalright Peerless Assassin 120 SE CPU Air Cooler ultimately hinges on your specific cooling requirements and budget. If you're looking for an affordable fan that combines aesthetics with decent airflow, the ARCTIC P12 is an excellent choice. Conversely, if you need robust CPU cooling performance to handle intensive tasks, the Thermalright Peerless Assassin, with its higher airflow and compatibility with various platforms, would be the better option. Consider your priorities—whether it's price, aesthetics, or performance—when making your final decision.

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ARCTIC P12 PWM PST A-RGB - PC Fan vs Thermalright Peerless Assassin 120 SE CPU Air Cooler | versusfinder