ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU vs Thermalright Assassin X 120R Digital ARGB Black
Updated July 2026 — ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU wins on depth and fan count, Thermalright Assassin X 120R Digital ARGB Black wins on height and heat pipes.
The ARCTIC Liquid Freezer III Pro 360 A-RGB offers superior cooling performance and quieter operation, making it ideal for high-performance builds, while the Thermalright Assassin X 120R is a budget-friendly option with decent cooling capabilities.
Why ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU is better
Cooling Performance
Larger radiator and multiple fans provide better heat dissipation.
Noise Levels
Quieter operation under load due to advanced fan design.
Aesthetics
More elaborate RGB lighting and integrated cable management.
Why Thermalright Assassin X 120R Digital ARGB Black is better
Price
Significantly cheaper option for budget-conscious users.
Size
More compact design fits in smaller cases.
Installation
Simpler installation process due to air cooler design.
Overall score
Specifications
| Spec | ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU | Thermalright Assassin X 120R Digital ARGB Black |
|---|---|---|
| Fan Speed | PWM | 2000 RPM |
| Socket Compatibility | AM5/AM4, LGA1700/1851 | AM4/AM5, LGA1700/1851/1150/1151/1200 |
| Cooling Type | AIO Liquid | Air |
| RGB Lighting | Yes | Yes |
| Integrated VRM Fan | Yes | No |
Dimension comparison
Overview of the ARCTIC Liquid Freezer III Pro 360 A-RGB
The ARCTIC Liquid Freezer III Pro 360 A-RGB is a premium all-in-one (AIO) CPU cooler priced at $94.99. This cooler is designed for high-performance cooling with its three 120 mm fans and a 38 mm radiator, ensuring efficient heat dissipation even under heavy loads. It features a PWM pump and an integrated VRM fan that helps keep voltage regulators cool, thereby enhancing overall system stability. The cooler is compatible with AMD’s AM5/AM4 and Intel’s LGA1851/1700 sockets, making it versatile for various builds.
Overview of the Thermalright Assassin X 120R Digital ARGB
In contrast, the Thermalright Assassin X 120R Digital ARGB is a more budget-friendly option, priced at just $22.90—about 76% cheaper than the ARCTIC cooler. This air cooler boasts a 2000 RPM PWM fan and four heat pipes, designed to provide efficient cooling in a more compact form factor. Its 151 mm height allows it to fit comfortably in most cases, while the digital screen on the top cover adds a touch of aesthetics. Additionally, it supports synchronization with ARGB lighting systems for a visually striking setup.
Cooling Performance Comparison
When it comes to cooling performance, the ARCTIC Liquid Freezer III Pro 360 A-RGB is likely to outperform the Thermalright Assassin X 120R due to its larger radiator and higher fan count. The combination of three fans and a well-designed radiator is engineered to manage heat effectively, especially during demanding tasks. The integrated VRM fan in the ARCTIC model adds an extra layer of cooling for critical voltage regulator modules, which can be crucial for high-performance CPUs.
On the other hand, the Thermalright Assassin X 120R, with its 2000 RPM fan and four heat pipes, also offers solid cooling capabilities but may struggle to match the thermal management of a larger AIO setup. While it is optimized for good performance, its single fan design and lower height might limit its cooling potential under load compared to the ARCTIC model.
Noise Levels
The ARCTIC Liquid Freezer III Pro 360 A-RGB is designed to operate quietly even under high loads. Its P12 PRO fan is engineered to deliver more performance at lower noise levels, which enhances user experience during operation. The integrated fan features help minimize noise while maximizing cooling efficiency.
In contrast, the Thermalright Assassin X 120R employs silicone corner pads to reduce noise from its fan operation. While it aims to provide a quiet experience, the fan can reach speeds of up to 2000 RPM, which may produce more noise during peak performance compared to the ARCTIC cooler. Users who prioritize silent operation may find the ARCTIC cooler more appealing.
Aesthetics and Design
Aesthetically, the ARCTIC Liquid Freezer III Pro 360 A-RGB offers a sleek black finish with RGB lighting that can be customized to match other components in your build. The integrated cable management provides a clean look with minimal visible cables, enhancing the overall visual appeal of the setup.
The Thermalright Assassin X 120R also features ARGB lighting, which synchronizes with the motherboard for a cohesive lighting effect. Its digital screen adds a modern touch, displaying system information while maintaining an attractive design. However, it has a more traditional air cooler appearance compared to the more elaborate design of the ARCTIC AIO cooler.
Installation Process
The installation process for the ARCTIC Liquid Freezer III Pro 360 A-RGB is straightforward, thanks to its native offset mounting for both Intel and AMD sockets. This feature ensures that users can achieve optimal contact pressure, resulting in better heat transfer. The cooler comes with clear instructions and is suitable for both novice and experienced builders.
Conversely, the Thermalright Assassin X 120R is designed for easy installation as well, with compatibility across multiple sockets including AM4/AM5 and various Intel LGA models. While both products are user-friendly in this regard, the AIO nature of the ARCTIC cooler may require more space and preparation compared to the simpler air cooler design of the Thermalright.
Price Comparison
The price difference between the two coolers is significant, with the ARCTIC Liquid Freezer III Pro 360 A-RGB retailing at $94.99 and the Thermalright Assassin X 120R at only $22.90. This represents a price disparity of about 314%, making the Thermalright option much more accessible for budget-conscious consumers. However, the higher price of the ARCTIC cooler reflects its advanced cooling capabilities and features, which may justify the investment for gamers and professionals seeking maximum performance.
Which should you buy?
Choosing between the ARCTIC Liquid Freezer III Pro 360 A-RGB and the Thermalright Assassin X 120R ultimately depends on your specific needs and budget. If you're seeking superior cooling performance, quieter operation, and aesthetic appeal, the ARCTIC cooler is worth the investment. However, if you are on a tight budget and require a competent air cooler for general use, the Thermalright Assassin X 120R provides excellent value at a fraction of the cost. Each cooler has its strengths, catering to different segments of the market effectively.

