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ARCTIC P12 Pro Reverse A-RGB – 3 Pack – vs Thermalright Peerless Assassin 120 Black CPU Air

Updated August 2026 — ARCTIC P12 Pro Reverse A-RGB – 3 Pack – wins on design, Thermalright Peerless Assassin 120 Black CPU Air wins on build quality and compatibility.

The ARCTIC P12 Pro offers excellent airflow and aesthetics at a lower price, while the Thermalright Peerless Assassin excels in CPU cooling performance. Choose based on your specific needs.

Why ARCTIC P12 Pro Reverse A-RGB – 3 Pack – is better

Price

ARCTIC P12 Pro is cheaper at $28.99

Aesthetics

ARCTIC features RGB lighting for visual appeal

Noise Level

ARCTIC operates quieter at lower speeds

Why Thermalright Peerless Assassin 120 Black CPU Air is better

Cooling Performance

Thermalright handles higher heat loads with TDP of 245W

Build Quality

Thermalright uses robust aluminum heatsink for durability

Airflow

Thermalright achieves 66.17 CFM with dual fans

Overall score

ARCTIC P12 Pro Reverse A-RGB – 3 Pack –
78
Thermalright Peerless Assassin 120 Black CPU Air
85

Specifications

SpecARCTIC P12 Pro Reverse A-RGB – 3 Pack –Thermalright Peerless Assassin 120 Black CPU Air
Fan TypePWM FanPWM Fan
RGB LightingYesNo
Heat Pipes06
Socket CompatibilityN/AIntel/AMD
Bearing TypeFluid DynamicN/A

Dimension comparison

ARCTIC P12 Pro Reverse A-RGB – 3 Pack –Thermalright Peerless Assassin 120 Black CPU Air

Overview of the ARCTIC P12 Pro Reverse A-RGB and Thermalright Peerless Assassin 120 Black

The ARCTIC P12 Pro Reverse A-RGB is priced at $28.99, while the Thermalright Peerless Assassin 120 Black is available for $38.90, making it about 17% more expensive. Both products cater to cooling solutions but serve different purposes within the realm of PC builds. The ARCTIC P12 Pro is a set of premium fans designed for optimal airflow and aesthetics, while the Thermalright Peerless Assassin 120 is a robust CPU air cooler aimed at providing effective heat dissipation.

Design and Aesthetics

The ARCTIC P12 Pro features a unique reversed airflow design, allowing it to draw air from the back side. This makes it particularly well-suited for glass-fronted cases where traditional fans might disrupt the visual appeal of the build. Its 5V digital RGB lighting not only enhances the aesthetic but also integrates well with modern RGB setups. Conversely, the Thermalright Peerless Assassin 120 Black boasts a double tower design with a sleek black finish, featuring an aluminum heatsink cover that complements various builds. While both products offer distinct visual elements, the ARCTIC fan is specifically tailored for those prioritizing aesthetics alongside performance.

Performance and Cooling Efficiency

In terms of performance, the ARCTIC P12 Pro can reach speeds of up to 3000 RPM, providing a high static pressure that effectively penetrates dense radiators and mesh structures. This makes it a strong candidate for builds requiring efficient airflow. On the other hand, the Thermalright Peerless Assassin features six heat pipes and dual PWM fans, allowing it to achieve a maximum airflow of 66.17 CFM. With a TDP of 245W, it is designed to handle significant heat loads from high-performance CPUs. Thus, while the ARCTIC excels in airflow and versatility, the Thermalright is engineered for robust CPU cooling performance.

Noise Levels and Operation

The ARCTIC P12 Pro is designed for quiet operation, utilizing a smooth-running fluid dynamic bearing that minimizes noise during use. At lower PWM settings, it can even operate at a near-silent level. The Thermalright Peerless Assassin, while also designed for quiet operation, has a maximum noise level of 25.6 dB(A). Although this is relatively quiet, it may not match the near-silent operation of the ARCTIC fans at lower speeds. Therefore, if noise levels are a primary concern, the ARCTIC P12 Pro may be the more appealing option for a quiet build.

Installation and Compatibility

The ARCTIC P12 Pro fans come with a Y cable splitter, simplifying the installation process by allowing multiple fans to connect to a single header. Their versatility makes them compatible with various setups. In contrast, the Thermalright Peerless Assassin is designed with compatibility for a wide range of sockets, including Intel LGA 1700 and AMD AM5, ensuring it can be installed on various platforms. Its design allows for efficient installation, even in tight spaces, making it a strong contender for users focusing on CPU cooling. Both products score high in ease of installation, but the Thermalright has an edge in compatibility with different CPU sockets.

Build Quality and Durability

The ARCTIC P12 Pro is constructed with high-precision manufacturing standards, which minimizes vibrations and enhances long-lasting performance. The hydrodynamic bearing used in the fans is self-lubricating, further extending their lifespan. In contrast, the Thermalright Peerless Assassin features a robust aluminum heatsink and is built with a full electroplating reflow welding process, which signifies a high standard of manufacturing aimed at durability. While both products exhibit strong build quality, the specific materials and manufacturing techniques used in the Thermalright cooler may offer a slight advantage in terms of durability under heavy load conditions.

Pricing and Value Proposition

At $28.99, the ARCTIC P12 Pro offers a competitive option for those in need of efficient fans with aesthetic appeal. In comparison, the Thermalright Peerless Assassin is priced at $38.90, representing a higher investment. However, its dual fans and advanced cooling technology may justify the price for users requiring serious CPU cooling. The ARCTIC fan set may be more appealing for users looking for cost-effective cooling solutions without the need for heavy CPU cooling. Ultimately, the choice between the two will depend on individual needs and budget considerations.

Which should you buy?

Deciding between the ARCTIC P12 Pro Reverse A-RGB and the Thermalright Peerless Assassin 120 Black largely depends on your specific requirements. If you are looking for visually appealing fans that provide excellent airflow and quiet operation, the ARCTIC P12 Pro is the better choice at $28.99. However, if you need a powerful CPU cooler that can handle high heat loads, the Thermalright Peerless Assassin at $38.90 offers superior cooling performance with its advanced technology. Each product excels in its domain, making the ultimate decision contingent on whether you prioritize aesthetics and airflow or robust CPU cooling capabilities.