ARCTIC P12 Pro Reverse A-RGB – 3 Pack – vs Thermalrlght Peerless Assassin 120 SE CPU Air
Updated August 2026 — ARCTIC P12 Pro Reverse A-RGB – 3 Pack – wins on noise level, Thermalrlght Peerless Assassin 120 SE CPU Air wins on compatibility and cooling.
The ARCTIC P12 Pro offers great aesthetics and airflow at a lower price, while the Thermalrlght Peerless Assassin excels in cooling performance. Choose based on your priority.
Why ARCTIC P12 Pro Reverse A-RGB – 3 Pack – is better
Price
ARCTIC P12 Pro is cheaper by 17%
Aesthetics
ARCTIC features RGB lighting
Installation
ARCTIC has simpler 4-pin PWM connection
Why Thermalrlght Peerless Assassin 120 SE CPU Air is better
Cooling Performance
Thermalrlght has superior heat dissipation
Heat Pipes
Thermalrlght uses 6 heat pipes for better cooling
Fan Configuration
Thermalrlght has dual fans for enhanced airflow
Overall score
Specifications
| Spec | ARCTIC P12 Pro Reverse A-RGB – 3 Pack – | Thermalrlght Peerless Assassin 120 SE CPU Air |
|---|---|---|
| Airflow | High | 66.17 CFM |
| RPM | 500-3000 | 1550 |
| Bearing Type | FDB | SS2 |
| Material | Plastic | Aluminum/Copper |
| Compatibility | Universal | Intel/AMD |
Dimension comparison
Overview of the Products
The ARCTIC P12 Pro Reverse A-RGB is a premium fan designed for enhanced airflow and aesthetics, while the Thermalrlght Peerless Assassin 120 SE CPU Air Cooler focuses on efficient cooling performance. Priced at $28.99 for a three-pack, the ARCTIC fan offers a unique reverse airflow feature, while the Thermalrlght cooler is available for $32.90 and emphasizes its dual-fan setup and advanced heat pipe technology. The price difference of about 13% makes the ARCTIC fans the more economical option for those prioritizing aesthetics and airflow.
Cooling Performance
The Thermalrlght Peerless Assassin 120 SE excels in cooling capabilities, utilizing six heat pipes and dual high-performance fans. This design ensures effective heat dissipation, making it suitable for demanding CPU applications. Its aluminum heatsink cover adds to its thermal efficiency. In contrast, the ARCTIC P12 Pro focuses on airflow with high static pressure, reaching up to 3000 RPM. While the ARCTIC fan is effective in specific scenarios, the overall cooling performance of the Thermalrlght cooler is superior due to its targeted design for CPU cooling.
Design and Aesthetics
In terms of design, the ARCTIC P12 Pro Reverse A-RGB stands out with its aesthetic appeal, featuring 5V digital RGB lighting that enhances visual appeal in glass-front PC cases. Its reversed airflow design is tailored for modern builds where aesthetics are as crucial as performance. On the other hand, the Thermalrlght Peerless Assassin boasts an anodized brushed black top cover and a more functional design, prioritizing compatibility with various components. While both have their merits, the ARCTIC fan edges out for those who prioritize visual flair in their builds.
Noise Levels
When it comes to noise levels, the ARCTIC P12 Pro is designed for quiet operation, utilizing a smooth-running fluid dynamic bearing that minimizes noise during use. This is particularly beneficial for users seeking a silent computing experience. The Thermalrlght Peerless Assassin, while also crafted for efficiency, has a rated noise level of up to 25.6 dB(A). As such, the ARCTIC fan presents a quieter solution, making it ideal for users who are sensitive to operational noise.
Ease of Installation
Both products emphasize compatibility and ease of installation, but they cater to different needs. The Thermalrlght Peerless Assassin is equipped with an SS2 install system and a metal pressure plate to ensure optimal contact with the CPU, making it straightforward for users to set up. However, users must check compatibility with their cases and motherboards. In contrast, the ARCTIC P12 Pro fans utilize a straightforward 4-pin PWM connection, allowing for easy installation in various configurations. Thus, for a simpler installation, the ARCTIC fans may be more appealing.
Price Comparison
The ARCTIC P12 Pro is priced at $28.99 for a three-pack, making it about 17% cheaper than the Thermalrlght Peerless Assassin, which costs $32.90. This price difference may be significant for budget-conscious consumers. However, it is essential to consider the value proposition of each product: while the ARCTIC fans offer aesthetic benefits and flexibility, the Thermalrlght cooler provides robust cooling performance for more intensive applications. Ultimately, the choice may depend on whether consumers prioritize quantity and aesthetics or performance.
Customer Considerations
When choosing between the ARCTIC P12 Pro and the Thermalrlght Peerless Assassin, potential buyers should consider their specific needs. The ARCTIC fans are ideal for users looking to enhance airflow and aesthetics in their PC builds, particularly where RGB lighting is a factor. Conversely, those seeking powerful CPU cooling solutions with advanced technology may find the Thermalrlght Peerless Assassin more suitable. Each product serves a different purpose, catering to various segments of the market, which is crucial for customers to evaluate.
Which should you buy?
Ultimately, the decision comes down to your specific requirements. If you’re looking for an aesthetically pleasing solution that provides good airflow at an affordable price, the ARCTIC P12 Pro Reverse A-RGB is the way to go. However, if your primary concern is achieving optimal CPU cooling performance, the Thermalrlght Peerless Assassin 120 SE is the better choice due to its superior cooling capabilities and design. Each product excels in its category, making it essential to align your choice with your computing needs.

