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ARCTIC P12 Pro A-RGB - Powerful Premium Fan, vs Thermalright Assassin King 120 SE White ARGB CPU

Updated August 2026 — Thermalright Assassin King 120 SE White ARGB CPU leads on height and width.

The ARCTIC P12 Pro A-RGB offers higher RPM and lower price, making it a better choice for budget-conscious users. The Thermalright Assassin King excels in aesthetics and compatibility.

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

Price

ARCTIC P12 Pro A-RGB is $12.49 compared to $19.82 for Thermalright.

RPM

ARCTIC P12 Pro A-RGB has a speed range of 600-3000 RPM.

Versatility

ARCTIC P12 Pro A-RGB can be used in various setups.

Why Thermalright Assassin King 120 SE White ARGB CPU is better

Aesthetics

Thermalright has a striking white design with ARGB.

Noise Level

Thermalright operates at a maximum of 25.6 dB(A).

CPU Compatibility

Thermalright supports multiple CPU sockets.

Overall score

ARCTIC P12 Pro A-RGB - Powerful Premium Fan,
85
Thermalright Assassin King 120 SE White ARGB CPU
78

Specifications

SpecARCTIC P12 Pro A-RGB - Powerful Premium Fan,Thermalright Assassin King 120 SE White ARGB CPU
Max RPM30001550
AirflowN/A66.17 CFM
Noise LevelN/A25.6 dB(A)
Bearing TypeFluid DynamicS-FDB
RGBYesYes

Dimension comparison

ARCTIC P12 Pro A-RGB - Powerful Premium Fan,Thermalright Assassin King 120 SE White ARGB CPU

Overview of the Products

In the realm of CPU cooling solutions, the ARCTIC P12 Pro A-RGB and the Thermalright Assassin King 120 SE White ARGB CPU Air Cooler stand out as two compelling options. The ARCTIC P12 Pro A-RGB is priced at $12.49, while the Thermalright Assassin King is available for $19.82, making the former about 37% cheaper. This price difference may play a significant role for budget-conscious consumers looking for effective cooling solutions.

Design and Build Quality

The ARCTIC P12 Pro A-RGB features a sleek black design with an emphasis on its fluid dynamic bearing, which minimizes operational noise and enhances longevity. The fan is designed for high static pressure, ensuring it can efficiently move air through dense radiators and mesh structures. On the other hand, the Thermalright Assassin King 120 SE boasts a white aesthetic with ARGB lighting, offering a vibrant look inside any case. Its heat sink is made of aluminum, and it employs five heat pipes designed with AGHP III technology, which enhances cooling performance in various orientations. Both products prioritize aesthetics and functionality, appealing to different user preferences.

Cooling Performance

When it comes to cooling capabilities, the ARCTIC P12 Pro A-RGB operates at speeds ranging from 600 to 3000 RPM, making it highly versatile for various cooling conditions. This wide speed range allows it to adapt based on the cooling needs of the system. Conversely, the Thermalright Assassin King operates at a maximum speed of 1550 RPM with a reported airflow of 66.17 CFM. While the Assassin King may not reach the same RPM as the ARCTIC fan, its design with five heat pipes ensures effective heat dissipation. Users who prioritize high RPM for optimal cooling may favor the ARCTIC P12, while those looking for a balanced approach might lean towards the Thermalright option.

Noise Levels

Noise levels are a crucial consideration for many PC builders, and both fans have been engineered to minimize operational sounds. The ARCTIC P12 Pro A-RGB boasts features that reduce vibrations and enhance quiet performance. Although specific noise levels were not provided, the design indicates a focus on silent operation. The Thermalright Assassin King, however, claims a noise level of up to 25.6 dB(A), which is relatively quiet for a CPU cooler. For users sensitive to noise, the Thermalright model may present an edge, but the ARCTIC fan’s superior RPM range might provide quieter operation at lower speeds.

Compatibility

The ARCTIC P12 Pro A-RGB is a fan intended for various setups, compatible with different cooling solutions that require a 120 mm fan. In contrast, the Thermalright Assassin King 120 SE is designed specifically as a CPU cooler, supporting a wide range of sockets including Intel’s LGA1700, LGA115X, and AMD’s AM4. With its focus on CPU compatibility, the Thermalright model may suit users looking to upgrade their air cooling specifically, while the ARCTIC fan is more versatile for different build configurations.

Installation and Usage

Both products offer relatively straightforward installation processes. The ARCTIC P12 Pro A-RGB can be mounted easily in various locations within a case, thanks to its standard 120 mm size and PWM capability. It also includes a Y-cable splitter, which can simplify connections for builds with multiple fans. The Thermalright Assassin King 120 SE comes with metal fasteners for both Intel and AMD platforms, ensuring users can easily install it regardless of their CPU choice. While both products are user-friendly, those looking for adaptability in fan placement may find the ARCTIC fan more accommodating.

Aesthetics and RGB Features

Aesthetically, the ARCTIC P12 Pro A-RGB features a refined black finish that can blend well with various builds, while the RGB lighting adds a modern touch. The Thermalright Assassin King 120 SE, with its striking white design and ARGB lighting, stands out as a statement piece in any rig. Users who prioritize visual flair may lean towards the Thermalright cooler, as it combines functional cooling with vibrant lighting effects. Nonetheless, the ARCTIC fan’s RGB integration offers a customizable experience that appeals to gamers and PC enthusiasts alike.

Which should you buy?

Choosing between the ARCTIC P12 Pro A-RGB and the Thermalright Assassin King 120 SE ultimately depends on your specific needs and preferences. If you are looking for a budget-friendly option with a higher RPM range for versatile cooling, the ARCTIC P12 Pro A-RGB at $12.49 is an excellent choice. However, if you prefer a CPU cooler with robust compatibility, quieter operation, and striking aesthetics, the Thermalright Assassin King at $19.82 may be worth the extra investment. Both products excel in their respective areas, making them valuable contenders in the CPU cooling market.