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ARCTIC P12 Pro A-RGB - Powerful Premium Fan, vs Thermalright Peerless Assassin 120 SE V2 CPU

Updated August 2026 — ARCTIC P12 Pro A-RGB - Powerful Premium Fan, wins on speed and fan size, Thermalright Peerless Assassin 120 SE V2 CPU wins on height and width.

The ARCTIC P12 Pro A-RGB is a budget-friendly fan with excellent aesthetics and quiet operation, while the Thermalright Peerless Assassin 120 SE V2 excels in cooling performance for high-load tasks.

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

Price

ARCTIC is significantly cheaper at $13.49.

Noise

ARCTIC operates quieter than Thermalright.

Aesthetics

ARCTIC features appealing RGB lighting.

Why Thermalright Peerless Assassin 120 SE V2 CPU is better

Cooling

Thermalright offers superior heat dissipation.

Compatibility

Thermalright supports more CPU sockets.

Performance

Thermalright has a dual tower design for better cooling.

Overall score

ARCTIC P12 Pro A-RGB - Powerful Premium Fan,
75
Thermalright Peerless Assassin 120 SE V2 CPU
85

Specifications

SpecARCTIC P12 Pro A-RGB - Powerful Premium Fan,Thermalright Peerless Assassin 120 SE V2 CPU
Max RPM30001850
Noise LevelLow29.5 dBA
Heat Pipes06
PWM ControlYesYes
RGB LightingYesNo

Dimension comparison

ARCTIC P12 Pro A-RGB - Powerful Premium Fan,Thermalright Peerless Assassin 120 SE V2 CPU

Overview of the ARCTIC P12 Pro A-RGB and Thermalright Peerless Assassin 120 SE V2

The ARCTIC P12 Pro A-RGB is priced at $13.49, whereas the Thermalright Peerless Assassin 120 SE V2 CPU cooler costs $38.99, making the former about 65% cheaper. This price difference is significant, particularly for budget-conscious consumers looking for effective cooling solutions. While both products serve the purpose of cooling within a PC setup, they cater to different needs and preferences.

Cooling Performance Comparison

When it comes to cooling performance, the Thermalright Peerless Assassin 120 SE V2 is designed to provide superior heat dissipation with its dual tower structure and six heat pipes. This design enhances heat transfer efficiency, making it particularly suitable for high-load tasks like gaming or multitasking. In contrast, the ARCTIC P12 Pro A-RGB fan focuses on high static pressure, making it efficient even in restrictive environments such as dense radiators and mesh structures. Both products claim reliable cooling, but the Peerless Assassin is arguably more robust for demanding applications.

Design and Aesthetics

The ARCTIC P12 Pro A-RGB features a sleek white design with digital RGB lighting, appealing to users who value aesthetics in their builds. The fan's design helps create a visually appealing setup while ensuring high performance. On the other hand, the Thermalright Peerless Assassin 120 SE V2 has a more utilitarian appearance focused on functionality. While it does not feature RGB lighting, its dual tower design gives it a professional look that may appeal to users prioritizing performance over aesthetics.

Noise Levels

The ARCTIC P12 Pro A-RGB is designed for quiet operation, thanks to its smooth-running fluid dynamic bearing, which minimizes noise during operation. This makes it a great option for users who want a quiet computing experience. The Thermalright Peerless Assassin 120 SE V2, while efficient, generates a noise level of 29.5 dBA at maximum speed. For users sensitive to noise, the ARCTIC fan would be the preferred choice due to its quieter operation.

Installation and Compatibility

The ARCTIC P12 Pro A-RGB fan features a 4-pin PWM connection and is relatively simple to install, making it user-friendly for both novice and experienced builders. Meanwhile, the Thermalright Peerless Assassin 120 SE V2 supports multiple platforms including AMD AM4/AM5 and Intel LGA1851/1700, which broadens its compatibility in various desktop builds. This makes the Peerless Assassin a more versatile option for users who may upgrade their systems in the future.

Fan Speed and Control

The ARCTIC P12 Pro A-RGB boasts a wide speed range of 600 to 3000 RPM, allowing for precise PWM control. It can even stop completely at less than 5% PWM, providing flexibility based on cooling demands. In comparison, the Thermalright Peerless Assassin 120 SE V2 features dual 120mm PWM fans with a maximum speed of 1850 RPM. While both products offer PWM control, the ARCTIC fan provides a broader range of speed options, which may be advantageous for users wanting to optimize cooling and noise levels.

Durability and Lifespan

The ARCTIC P12 Pro A-RGB is engineered for long-lasting performance, with features that reduce vibrations and enhance durability. Its fluid dynamic bearing is self-lubricating, which contributes to a longer service life. The Thermalright Peerless Assassin 120 SE V2 is also built for durability, featuring a robust dual tower design and high-quality materials. However, the ARCTIC fan's design specifically targets longevity in terms of noise reduction and efficiency, making it a strong contender in this category.

Which should you buy?

Choosing between the ARCTIC P12 Pro A-RGB and the Thermalright Peerless Assassin 120 SE V2 ultimately depends on your specific needs. If you are looking for a budget-friendly, aesthetically pleasing option with a quieter operation, the ARCTIC P12 Pro A-RGB is a solid choice at $13.49. However, if you require a more robust cooling solution for high-performance tasks and are willing to invest $38.99, the Thermalright Peerless Assassin 120 SE V2 offers superior heat dissipation and broader compatibility. Consider your priorities in terms of performance, aesthetics, noise levels, and budget when making your decision.