ARCTIC P12 Pro A-RGB - Powerful Premium Fan, vs Thermalright Peerless Assassin 120 Digital ARGB
Updated August 2026 — ARCTIC P12 Pro A-RGB - Powerful Premium Fan, wins on noise level, Thermalright Peerless Assassin 120 Digital ARGB wins on compatibility and aesthetics.
The ARCTIC P12 Pro A-RGB offers excellent airflow and quiet operation at a budget-friendly price, while the Thermalright Peerless Assassin provides superior cooling performance for demanding systems. Choose based on your specific needs.
Why ARCTIC P12 Pro A-RGB - Powerful Premium Fan, is better
Price
ARCTIC P12 Pro A-RGB is significantly cheaper.
Noise
ARCTIC fan operates quieter than Thermalright.
Size
ARCTIC fan is more compact and easier to fit.
Why Thermalright Peerless Assassin 120 Digital ARGB is better
Cooling Performance
Thermalright has advanced cooling technology.
Heat Dissipation
Thermalright's dual tower design enhances heat dissipation.
Compatibility
Thermalright supports multiple CPU sockets.
Overall score
Specifications
| Spec | ARCTIC P12 Pro A-RGB - Powerful Premium Fan, | Thermalright Peerless Assassin 120 Digital ARGB |
|---|---|---|
| Max RPM | 3000 | 1850 |
| Noise Level | ≤5% | ≤25.6 dB(A) |
| Heat Pipes | 0 | 6 |
| RGB Type | 5V Digital | ARGB |
| Price | $12.49 | $45.90 |
Dimension comparison
Overview
In the world of cooling solutions, the ARCTIC P12 Pro A-RGB fan and the Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler represent two distinct approaches to maintaining optimal temperatures in your computer system. The ARCTIC P12 Pro A-RGB is a 120 mm PWM fan priced at $12.49, while the Thermalright cooler, featuring a more complex design, costs $45.90. This article will explore their features, performance, and overall value to help you decide which product best suits your needs.
Design and Build Quality
The ARCTIC P12 Pro A-RGB is engineered with a focus on airflow efficiency, featuring a unique fan blade design that enhances performance while minimizing noise. Its fluid dynamic bearing ensures a longer lifespan and quieter operation. In contrast, the Thermalright Peerless Assassin 120 boasts a dual tower design with dual fans and six heat pipes, all encased in a sleek black finish. It also includes a digital screen on the top cover, adding a modern touch. The more extensive design of the Thermalright cooler means it can handle heavier cooling loads but may require more space in your chassis.
Cooling Performance
Cooling performance is where these two products diverge significantly. The ARCTIC P12 Pro A-RGB can reach speeds of up to 3000 RPM, generating high static pressure that is effective even in challenging environments like dense radiators. On the other hand, the Thermalright Peerless Assassin operates at a maximum fan speed of 1850 RPM but offers good heat dissipation thanks to its six heat pipes and dual-fan setup. This means that while the ARCTIC fan excels in airflow at higher speeds, the Thermalright cooler provides a more robust overall cooling solution for CPU temperatures, particularly in high-performance systems.
Noise Levels
When it comes to noise levels, the ARCTIC P12 Pro A-RGB is designed for quiet operation, thanks to its fluid dynamic bearing that minimizes operational noise. It also features the capability to stop completely at less than 5% PWM, making it an excellent choice for silent builds. The Thermalright Peerless Assassin, with an operating noise level of up to 25.6 dB(A), is slightly noisier due to its powerful dual fans but still offers a reasonable level of quietness for a CPU cooler. For users prioritizing silence, the ARCTIC fan may be the better option, while the Thermalright cooler still remains relatively unobtrusive.
Installation and Compatibility
Both products offer straightforward installation processes, but their compatibility varies. The ARCTIC P12 Pro A-RGB is a standard 120 mm fan, making it compatible with a wide range of cases and cooling setups. The Thermalright Peerless Assassin, however, is designed to fit various platforms, including AMD AM4/AM5 and Intel sockets like LGA1700 and LGA1200. This versatility makes the Thermalright cooler suitable for users with diverse system configurations, while the ARCTIC fan serves as a more general-purpose solution.
Aesthetics and RGB Features
Aesthetics play a crucial role in many builds today, and here, both products shine in their own right. The ARCTIC P12 Pro A-RGB features 5V digital RGB lighting, allowing for vibrant customization to match your setup. In contrast, the Thermalright Peerless Assassin also boasts ARGB capabilities along with a digital screen that adds a unique element to its appearance. The choice between these two will largely depend on personal preference for RGB lighting and how much visual flair you want in your build.
Price and Value
The ARCTIC P12 Pro A-RGB is priced at $12.49, making it about 73% cheaper than the Thermalright Peerless Assassin at $45.90. For users on a budget or those looking to optimize airflow without breaking the bank, the ARCTIC fan presents a fantastic value. However, the Thermalright cooler justifies its higher price with advanced cooling technology and additional features, appealing to enthusiasts who demand superior performance and aesthetics.
Which should you buy?
Choosing between the ARCTIC P12 Pro A-RGB and the Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler ultimately comes down to your specific needs. If you're looking for a high-performance fan that is quiet, affordable, and easy to integrate into various setups, the ARCTIC P12 Pro A-RGB is an excellent choice. However, if you require a more robust cooling solution with advanced features and compatibility for a range of CPUs, the Thermalright Peerless Assassin stands out despite its higher price. Consider your cooling requirements, budget, and aesthetic preferences to make the best choice for your system.

