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ARCTIC P12 Pro A-RGB - Powerful Premium Fan, vs Thermalright Peerless Assassin 120 Mini Black CPU

Updated August 2026 — ARCTIC P12 Pro A-RGB - Powerful Premium Fan, wins on noise level, Thermalright Peerless Assassin 120 Mini Black CPU wins on cooling efficien and compatibility.

The ARCTIC P12 Pro A-RGB is a budget-friendly fan with high RPM, while the Thermalright Peerless Assassin offers advanced CPU cooling. Choose based on your cooling needs.

Why ARCTIC P12 Pro A-RGB - Powerful Premium Fan, is better

Price

ARCTIC is $20.90 cheaper

Fan Speed

ARCTIC has a max speed of 3000 RPM

Design

ARCTIC features a sleek white design

Why Thermalright Peerless Assassin 120 Mini Black CPU is better

Cooling Performance

Thermalright has 6 heat pipes for better heat dissipation

Build Quality

Thermalright features a fully blackened aluminum body

Noise Level

Thermalright operates at ≤ 25.6 dB(A)

Overall score

ARCTIC P12 Pro A-RGB - Powerful Premium Fan,
75
Thermalright Peerless Assassin 120 Mini Black CPU
85

Specifications

SpecARCTIC P12 Pro A-RGB - Powerful Premium Fan,Thermalright Peerless Assassin 120 Mini Black CPU
Fan TypePWM FanPWM Fan
Bearing TypeFluid DynamicS-FDB
Heat Pipes06
CompatibilityGeneralIntel/AMD
InstallationEasyModerate

Dimension comparison

ARCTIC P12 Pro A-RGB - Powerful Premium Fan,Thermalright Peerless Assassin 120 Mini Black CPU

Overview of the Products

The ARCTIC P12 Pro A-RGB is priced at $13.49, while the Thermalright Peerless Assassin 120 Mini Black CPU Cooler costs $34.39. The price difference of $20.90 makes the ARCTIC fan about 61% cheaper than the Thermalright cooler. This significant price disparity indicates that these products target different segments of the cooling market, with the ARCTIC focusing on fans and the Thermalright on CPU coolers.

Design and Build Quality

The ARCTIC P12 Pro A-RGB features a sleek white design and utilizes fluid dynamic bearings to ensure smooth operation. Its design is engineered for high static pressure, making it effective in dense environments like radiators. On the other hand, the Thermalright Peerless Assassin boasts a fully blackened aluminum body with a CNC precision micro-engraved copper base. This cooler incorporates 6 heat pipes with AGHP technology to improve heat dissipation. While both products exhibit quality craftsmanship, the Thermalright cooler's advanced design may provide superior cooling performance due to its more complex construction.

Cooling Performance

In terms of cooling efficiency, the ARCTIC P12 Pro A-RGB can reach speeds of up to 3000 RPM, which is significantly higher than the Thermalright’s maximum fan speed of 1500 RPM. This allows the ARCTIC fan to deliver high airflow under resistance, making it suitable for various applications. Conversely, the Thermalright Peerless Assassin offers a maximum airflow of 66.87 CFM, supported by its 6 heat pipes, aimed at providing effective CPU cooling. The ARCTIC fan's higher RPM could make it a better choice for scenarios requiring intense cooling, while the Thermalright excels in CPU applications.

Noise Levels

The ARCTIC P12 Pro A-RGB is designed for quiet operation, with reduced vibrations due to its high-precision manufacturing. Although exact noise levels are not specified, the fan's self-lubricating bearing is intended to minimize sound during use. In contrast, the Thermalright Peerless Assassin has a noise level of ≤ 25.6 dB(A). With the ARCTIC fan's emphasis on quiet performance, it is likely to appeal to users who prioritize a silent computing experience, while the Thermalright cooler provides adequate noise levels for general use.

Installation and Compatibility

The ARCTIC P12 Pro A-RGB is a PWM fan that can be easily integrated into various systems using a 4-pin PWM connection. Its Y-cable splitter allows for flexible installation options, making it user-friendly. On the other hand, the Thermalright Peerless Assassin is compatible with a wide range of Intel and AMD CPUs, supporting sockets like LGA 1700 and AM5. Its mounting kit ensures compatibility across various platforms. While the ARCTIC fan is straightforward to install, the Thermalright cooler offers broader compatibility for different CPU architectures.

Target Audience

The ARCTIC P12 Pro A-RGB is aimed at PC builders looking for high-performance fans at a budget-friendly price of $13.49. It is ideal for those wanting to enhance airflow in their systems without breaking the bank. In contrast, the Thermalright Peerless Assassin is targeted towards users requiring efficient CPU cooling solutions, reflected in its higher price tag of $34.39. The different price points indicate that the ARCTIC is more suited for general cooling needs, while the Thermalright focuses on advanced CPU cooling.

Brand Reputation

ARCTIC is known for its value-oriented products, focusing on delivering performance at competitive prices. The P12 Pro A-RGB is a testament to this philosophy, offering powerful performance without a hefty price tag. Thermalright, with over 20 years in the market, boasts a solid reputation for developing effective cooling solutions. Their Peerless Assassin cooler showcases their commitment to quality and innovation in CPU cooling. Both brands are reputable in their respective niches, appealing to different consumer preferences.

Which should you buy?

Choosing between the ARCTIC P12 Pro A-RGB and the Thermalright Peerless Assassin ultimately depends on your specific needs. If you require a high-performance fan for general cooling and are budget-conscious, the ARCTIC P12 Pro A-RGB at $13.49 is a compelling option. However, if you need a dedicated CPU cooler with advanced heat dissipation capabilities and you're willing to spend more, the Thermalright Peerless Assassin at $34.39 is worth considering. Each product excels in its category, making the decision one of priorities and intended use.