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ARCTIC P12 Pro A-RGB - Powerful Premium Fan, vs Thermalright Assassin X 120R SE V2 CPU Cooler, 4×

Updated August 2026 — ARCTIC P12 Pro A-RGB - Powerful Premium Fan, leads on fan efficiency and aesthetics.

The ARCTIC P12 Pro A-RGB offers superior performance and quieter operation, making it a better choice for high static pressure needs. However, the Thermalright Assassin X 120R SE V2 provides a more comprehensive CPU cooling solution.

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

Price

ARCTIC is $12.49, cheaper than Thermalright at $16.59.

Speed Range

ARCTIC operates from 600 to 3000 RPM, offering more versatility.

Noise Levels

ARCTIC runs quieter at lower speeds, ideal for silent setups.

Why Thermalright Assassin X 120R SE V2 CPU Cooler, 4× is better

Cooling Efficiency

Thermalright has a robust design with heat pipes for better CPU cooling.

Compatibility

Thermalright supports a wider range of CPU sockets.

Build Quality

Thermalright features a solid aluminum heat sink for durability.

Overall score

ARCTIC P12 Pro A-RGB - Powerful Premium Fan,
85
Thermalright Assassin X 120R SE V2 CPU Cooler, 4×
78

Specifications

SpecARCTIC P12 Pro A-RGB - Powerful Premium Fan,Thermalright Assassin X 120R SE V2 CPU Cooler, 4×
AirflowHighModerate
Noise Level≤5% PWM≤25.6 dB(A)
Bearing TypeFluid DynamicS-FDB
RGB Lighting5V DigitalRGB PWM
PWM ControlYesYes

Dimension comparison

ARCTIC P12 Pro A-RGB - Powerful Premium Fan,Thermalright Assassin X 120R SE V2 CPU Cooler, 4×

Overview of the Products

The ARCTIC P12 Pro A-RGB is priced at $12.49, while the Thermalright Assassin X 120R SE V2 CPU Cooler comes in at $16.59, making the ARCTIC fan about 17% cheaper. Both products aim to provide effective cooling solutions, but they cater to slightly different market needs and preferences. The ARCTIC fan is primarily designed for high static pressure scenarios, while the Thermalright cooler offers a more comprehensive CPU cooling solution with its heat pipe design.

Design and Build Quality

The ARCTIC P12 Pro A-RGB features a sleek design with a fluid dynamic bearing that minimizes noise during operation, ensuring a quiet yet efficient cooling experience. Its high-precision manufacturing focuses on reducing vibrations, enhancing both durability and performance. Conversely, the Thermalright Assassin X 120R SE V2 boasts a robust build with aluminum heat sink material and four heat pipes, improving overall cooling efficiency. Its height of 148mm allows it to fit in medium-sized cases, which can be a crucial factor for many users.

Cooling Performance

In terms of cooling performance, the ARCTIC P12 Pro A-RGB fan operates at a speed range of 600 to 3000 RPM, making it highly adaptable for various cooling needs. It excels in generating airflow that can penetrate dense radiators and mesh structures, which is ideal for users with high-performance setups. On the other hand, the Thermalright Assassin X 120R SE V2 features a fan speed of 1550 RPM and an airflow capacity of 66.17 CFM. While its maximum speed is lower than the ARCTIC fan, it still provides efficient cooling, particularly appropriate for standard CPU usage.

Noise Levels

The ARCTIC P12 Pro A-RGB is designed to operate quietly, particularly at low speeds, thanks to its fluid dynamic bearing. This allows the fan to run at less than 5% PWM without making noise, making it an excellent choice for users who prioritize a silent setup. The Thermalright Assassin X 120R SE V2 also emphasizes quiet operation, with a noise level of ≤25.6 dB(A). While both products aim for low noise levels, the ARCTIC might have an edge at lower RPMs, appealing to those seeking ultra-quiet cooling solutions.

Compatibility

The ARCTIC P12 Pro A-RGB can be used as a conventional fan in various setups, thanks to its 4-pin PWM connection, which allows for easy integration into existing systems. The Thermalright Assassin X 120R SE V2 has a broader compatibility range, supporting both AMD AM4/AM5 and various Intel sockets (including LGA1150, 1151, 1200, and 1700). This makes the Thermalright cooler a more versatile option for users with diverse CPU systems, while the ARCTIC fan is more suited for specific cooling applications.

Aesthetics

For those who value aesthetics, the ARCTIC P12 Pro A-RGB offers a striking 5V digital RGB lighting feature that can enhance the visual appeal of a gaming rig. The customizable RGB options allow users to sync with other RGB components for a cohesive look. In contrast, the Thermalright Assassin X 120R SE V2 also includes an RGB PWM fan, but its design leans towards a more understated appearance, which may appeal to users looking for a more professional or minimalistic setup.

Ease of Installation

The installation process can differ significantly between the two products. The ARCTIC P12 Pro A-RGB is straightforward, mainly designed for users who want to add or replace a fan. The Thermalright Assassin X 120R SE V2, however, comes with specific mounting brackets for both Intel and AMD platforms, which can make installation slightly more complex but ensures a sturdy fit. For those who are comfortable with DIY setups, this added complexity may not be a deterrent, while others may prefer the simplicity of the ARCTIC fan.

Which should you buy?

Choosing between the ARCTIC P12 Pro A-RGB and the Thermalright Assassin X 120R SE V2 ultimately depends on your specific needs. The ARCTIC fan is a great choice if you are looking for a cost-effective, high-performance fan that excels in noise reduction and static pressure. On the other hand, if you require a comprehensive cooling solution for your CPU with broad compatibility and enhanced cooling efficiency, the Thermalright cooler might be the better option despite its higher price. Consider your setup, cooling needs, and budget to make the best choice for your system.