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ARCTIC P12 Pro A-RGB - Powerful Premium Fan, vs Thermalright Peerless Assassin 120 SE V2 CPU

Updated August 2026 — ARCTIC P12 Pro A-RGB - Powerful Premium Fan, wins on noise level, Thermalright Peerless Assassin 120 SE V2 CPU wins on compatibility and cooling.

The ARCTIC P12 Pro A-RGB offers excellent value with its quiet operation and RGB features, while the Thermalright Peerless Assassin excels in cooling performance and compatibility.

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

Price

ARCTIC P12 Pro is significantly cheaper at $12.49.

Noise

ARCTIC P12 Pro is designed for quieter operation.

Aesthetics

ARCTIC P12 Pro features vibrant RGB lighting.

Why Thermalright Peerless Assassin 120 SE V2 CPU is better

Cooling

Thermalright Peerless Assassin has superior cooling performance.

Compatibility

Thermalright supports multiple CPU sockets.

Design

Thermalright's dual tower design enhances heat dissipation.

Overall score

ARCTIC P12 Pro A-RGB - Powerful Premium Fan,
75
Thermalright Peerless Assassin 120 SE V2 CPU
85

Specifications

SpecARCTIC P12 Pro A-RGB - Powerful Premium Fan,Thermalright Peerless Assassin 120 SE V2 CPU
Max RPM30001850
Noise Level22 dBA29.5 dBA
Airflow62 CFM88.89 CFM
Bearing TypeFDBS-FDB
RGB LightingYesNo
Socket SupportNoneAMD/Intel

Dimension comparison

ARCTIC P12 Pro A-RGB - Powerful Premium Fan,Thermalright Peerless Assassin 120 SE V2 CPU

Price Comparison

When considering the price, the ARCTIC P12 Pro A-RGB is significantly cheaper than the Thermalright Peerless Assassin 120 SE V2. The ARCTIC fan retails for $12.49, while the Thermalright cooler comes in at $38.99. This makes the ARCTIC P12 Pro about 68% less expensive than its competitor. For budget-conscious consumers or those who need multiple fans for optimal cooling, the price difference is a crucial factor to consider.

Cooling Performance

The Thermalright Peerless Assassin excels in cooling performance due to its dual tower design and six heat pipes, which enhance heat dissipation effectively. It features dual 120mm PWM fans that can reach speeds of up to 1850 RPM, providing robust airflow for high-load tasks like gaming and multitasking. In contrast, the ARCTIC P12 Pro A-RGB has a maximum speed of 3000 RPM, which allows for high static pressure and effective cooling even in challenging setups. However, it is primarily designed as a single fan solution, which may not match the overall cooling efficiency of the dual tower design of the Thermalright.

Design and Aesthetics

In terms of design, the ARCTIC P12 Pro A-RGB stands out with its 5V digital RGB lighting, which can add a vibrant aesthetic to any build. Its sleek black design is complemented by a modern look that appeals to gamers and PC builders alike. The Thermalright Peerless Assassin, while not RGB-equipped, features a dual tower design that is visually striking in its own right and emphasizes functionality over flair. Both products cater to different tastes, but the ARCTIC fan is the clear winner if aesthetic customization is a priority.

Noise Levels

When evaluating noise levels, the ARCTIC P12 Pro A-RGB is designed for quiet operation, thanks in part to its smooth-running fluid dynamic bearing, which minimizes noise during use. However, the Thermalright Peerless Assassin operates at a noise level of 29.5 dBA at maximum speed, which can be noticeable in a quiet environment. While both products aim for efficient cooling with minimal noise, the ARCTIC fan’s design caters more to users seeking silent operation, especially at lower RPMs.

Compatibility

The Thermalright Peerless Assassin boasts broad compatibility, supporting both AMD AM4/AM5 and Intel LGA1851/1700 platforms. This makes it a versatile choice for various desktop builds, particularly for users upgrading systems with different CPU sockets. Conversely, the ARCTIC P12 Pro A-RGB is a standard 120mm fan without specific CPU compatibility, as it is designed to be used in conjunction with other cooling solutions. If you are building or upgrading a system, the Thermalright’s compatibility may prove more beneficial.

Installation

Installation can differ notably between these two products. The ARCTIC P12 Pro A-RGB is straightforward to install, given that it is a single fan that can be easily mounted in various configurations. Its Y-cable splitter simplifies connecting multiple fans to a single header, which is advantageous for users looking to expand cooling systems. The Thermalright Peerless Assassin, while potentially more complicated due to its dual tower and heat pipe configuration, is designed with ease of installation in mind, yet may require more space and careful handling. Users with limited experience may find the ARCTIC fan simpler to set up.

Longevity and Durability

Both products are designed with longevity in mind, but their construction methods differ. The ARCTIC P12 Pro features a smooth-running fluid dynamic bearing that is known for its reliability and longevity, making it a solid choice for long-term use. The Thermalright Peerless Assassin uses S-FDB bearings for its fans, which also promise a durable performance. While both fans are built to last, users may lean towards the ARCTIC fan if they prioritize quiet operation and prolonged usability.

Which should you buy?

Ultimately, the decision between the ARCTIC P12 Pro A-RGB and the Thermalright Peerless Assassin 120 SE V2 boils down to your specific needs. If you’re looking for an affordable, high-performance fan with aesthetic RGB features and quieter operation, the ARCTIC P12 Pro A-RGB is an excellent choice. However, if you require more robust cooling capabilities for high-load tasks and broader compatibility with CPU sockets, the Thermalright Peerless Assassin is the better option despite its higher price. Consider your budget, cooling needs, and aesthetic preferences to determine which product best fits your build.