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ARCTIC P12 Pro Reverse A-RGB – 3 Pack – vs Thermalright Assassin X 120R Digital ARGB Black

Updated August 2026 — ARCTIC P12 Pro Reverse A-RGB – 3 Pack – wins on cooling efficien and noise level, Thermalright Assassin X 120R Digital ARGB Black wins on installation eas.

The ARCTIC P12 Pro offers superior airflow and quieter operation, while the Thermalright Assassin X 120R provides effective cooling with a digital display at a lower price.

Why ARCTIC P12 Pro Reverse A-RGB – 3 Pack – is better

Airflow Design

Reversed airflow enhances cooling efficiency.

Noise Levels

Quieter operation due to fluid dynamic bearing.

Speed Range

Higher RPM range allows for better cooling customization.

Why Thermalright Assassin X 120R Digital ARGB Black is better

Price

Lower price point makes it more budget-friendly.

Digital Display

Real-time monitoring of CPU and GPU temperatures.

Compatibility

Wider compatibility with various CPU sockets.

Overall score

ARCTIC P12 Pro Reverse A-RGB – 3 Pack –
85
Thermalright Assassin X 120R Digital ARGB Black
78

Specifications

SpecARCTIC P12 Pro Reverse A-RGB – 3 Pack –Thermalright Assassin X 120R Digital ARGB Black
RPM500-30002000
Noise Level≤ 29.8 dB(A)≤ 29.8 dB(A)
RGB Lighting5V Digital RGBARGB
Bearing TypeFluid DynamicStandard
Fan TypePWMPWM

Dimension comparison

ARCTIC P12 Pro Reverse A-RGB – 3 Pack –Thermalright Assassin X 120R Digital ARGB Black

Overview of the ARCTIC P12 Pro Reverse A-RGB and Thermalright Assassin X 120R

The ARCTIC P12 Pro Reverse A-RGB is priced at $28.99, making it about 17% more expensive than the Thermalright Assassin X 120R, which is available for $24.90. Both products are designed to enhance cooling in PC builds but cater to different needs and aesthetics. The ARCTIC fan focuses on airflow design and quiet operation, while the Thermalright cooler combines heat dissipation efficiency with a digital display for real-time monitoring.

Design and Aesthetics

The ARCTIC P12 Pro features a unique reversed airflow design, drawing air from the back, which is particularly beneficial for builds with glass panels where conventional fans might detract from the overall look. This design allows it to maintain a neat aesthetic while still providing effective cooling. On the other hand, the Thermalright Assassin X 120R not only emphasizes functionality but also incorporates a digital screen on its top cover. This screen displays critical information such as CPU and GPU temperatures, adding a modern touch to its design while ensuring that cooling performance is not compromised.

Cooling Performance

When it comes to cooling performance, the ARCTIC P12 Pro excels in generating high static pressure, essential for penetrating dense radiators and mesh structures. It operates within a speed range of 500 to 3000 RPM, allowing for adjustable airflow to suit various cooling needs. In comparison, the Thermalright Assassin X 120R utilizes a high-speed fan that reaches up to 2000 RPM, which is effective for heat dissipation but slightly lower than the maximum capability of the ARCTIC fan. This difference in speed range could play a significant role in performance, especially under heavy workloads.

Noise Levels

Noise levels are a critical consideration for many PC builders. The ARCTIC P12 Pro is designed for quiet operation, utilizing a smooth-running fluid dynamic bearing that minimizes noise during use. This makes it an excellent choice for users who prioritize a quiet computing environment. The Thermalright Assassin X 120R also claims to operate at a noise level of 29.8 dB(A), which is relatively quiet but may not be as silent as the ARCTIC offering. The emphasis on quiet performance in the ARCTIC model could make it more appealing for gamers or professionals working in noise-sensitive settings.

Installation and Compatibility

Both products are designed with ease of installation in mind. The ARCTIC P12 Pro comes as a 3-pack, allowing users to customize their cooling setup according to their needs. Meanwhile, the Thermalright Assassin X 120R is compatible with a wide variety of sockets, including Intel's LGA 1851/1700 and AMD's AM4/AM5, making it a versatile option for many builds. The installation process is straightforward for both, but the additional components in the ARCTIC pack may provide more flexibility for users looking to enhance airflow across multiple areas in their case.

Features and Technology

The ARCTIC P12 Pro integrates advanced PWM control, enabling the fan to stop entirely at lower PWM settings, which preserves energy and reduces noise when full power is unnecessary. The 5V digital RGB lighting offers customization options, enhancing the visual appeal of the setup. In contrast, the Thermalright Assassin X 120R features a digital screen that monitors system temperatures, providing users with real-time data on their CPU and GPU performance. This feature not only aids in maintaining optimal temperatures but also adds a level of engagement for users interested in monitoring their system’s health.

Price Comparison

With the ARCTIC P12 Pro priced at $28.99 and the Thermalright Assassin X 120R at $24.90, there is a clear price difference of about $4.09. This 17% difference may influence buyers depending on their budget and specific needs. The ARCTIC fan offers a comprehensive cooling solution with its multiple fans in a pack, while the Thermalright cooler provides a single effective unit with added monitoring features at a lower cost. Budget-conscious consumers may find the Thermalright option more appealing, while those seeking advanced cooling capabilities might prefer the ARCTIC product.

Which should you buy?

Choosing between the ARCTIC P12 Pro Reverse A-RGB and the Thermalright Assassin X 120R largely depends on your specific needs and preferences. If you prioritize a quiet operation and advanced airflow design, the ARCTIC P12 Pro may be worth the extra investment. However, if you prefer a cooler with a digital display that monitors temperatures and offers solid cooling performance at a lower price, the Thermalright Assassin X 120R is a strong contender. Both products have their merits, and the best choice will align with your personal requirements for cooling efficiency, noise levels, and budget considerations.