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 length and radiator size, Thermalright Assassin X 120R Digital ARGB Black wins on height.
The ARCTIC Liquid Freezer III Pro 360 excels in cooling performance and features, while the Thermalright Assassin X 120R offers great value for budget users.
Why ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU is better
Cooling Performance
Superior liquid cooling with VRM fan
Build Quality
High-quality materials and design
Aesthetics
Integrated RGB lighting enhances visual appeal
Why Thermalright Assassin X 120R Digital ARGB Black is better
Price
Significantly lower cost
Size
Compact design fits smaller cases
Ease of Installation
Simpler air cooler setup
Overall score
Specifications
| Spec | ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU | Thermalright Assassin X 120R Digital ARGB Black |
|---|---|---|
| Cooling Type | Liquid | Air |
| Max RPM | 1800 | 2000 |
| Airflow | 75 CFM | 70.84 CFM |
| Noise Level | ≤ 25 dB | ≤ 29.8 dB |
| Socket Compatibility | AM4/AM5, LGA1700 | AM4/AM5, LGA1851 |
Dimension comparison
Overview of the ARCTIC Liquid Freezer III Pro 360 and Thermalright Assassin X 120R
The ARCTIC Liquid Freezer III Pro 360 is a high-performance AIO cooler priced at $94.99, while the Thermalright Assassin X 120R is a more budget-friendly air cooler at just $24.90. The price difference of about 284% indicates that each product targets different segments of the CPU cooling market, appealing to either high-end users or those on a budget.
The ARCTIC cooler features a 360mm radiator and three 120mm fans, emphasizing liquid cooling for superior performance during intensive tasks. In contrast, the Thermalright model provides traditional air cooling with a single 120mm fan and a compact design, which could benefit users with smaller cases.
Cooling Performance
The ARCTIC Liquid Freezer III Pro 360 is designed for optimal cooling performance, especially under high loads, thanks to its powerful P12 PRO fans. These fans operate efficiently at low speeds while maintaining a higher maximum speed for demanding applications. The integration of a VRM fan further ensures that voltage regulators remain cool, enhancing system stability.
On the other hand, the Thermalright Assassin X 120R, while effective for everyday use, may not match the cooling prowess of the ARCTIC model. With a maximum fan speed of 2000 RPM and an airflow of 70.84 CFM, it provides decent heat dissipation for less intensive tasks. However, under extreme loads, it may struggle compared to the robust liquid cooling solution offered by the ARCTIC cooler.
Installation and Compatibility
Both coolers offer wide compatibility across various AMD and Intel sockets, making them suitable for a range of builds. The ARCTIC Liquid Freezer III Pro includes a contact frame optimized for Intel's LGA1851 and LGA1700, as well as AMD AM5 and AM4. Its native offset mounting facilitates efficient heat transfer, ensuring users can install it with confidence.
Conversely, the Thermalright Assassin X 120R is also compatible with a broader range of Intel sockets, including LGA 1851, LGA 1700, and others, alongside AMD AM4 and AM5. The installation process is user-friendly, and it’s noted that users will need the original motherboard backplate for AMD installations. Although both coolers are accessible for installation, the ARCTIC's liquid cooling setup may require more effort than the simpler air cooler.
Aesthetic Appeal
In terms of aesthetics, the ARCTIC Liquid Freezer III Pro 360 stands out with its sleek design and integrated RGB lighting, appealing to gamers and PC builders who prioritize visual flair in their setups. The combination of RGB lighting and the large radiator gives it a modern look that can enhance any build.
The Thermalright Assassin X 120R also puts emphasis on aesthetics with its digital screen top cover, which displays real-time temperature and usage statistics. This feature not only adds a touch of sophistication but also provides functional insight into system performance. However, some users may find that the ARCTIC cooler's RGB capabilities offer a more vibrant and customizable lighting experience.
Noise Levels
Noise levels are an important consideration for many users, especially in builds where silence is paramount. The ARCTIC Liquid Freezer III Pro is designed with quieter operation in mind, particularly at lower speeds, allowing for optimal cooling without excessive noise. While specific dB ratings are not provided, the focus on low-noise performance suggests it can operate quietly during regular use.
The Thermalright Assassin X 120R has a maximum operating noise level of ≤ 29.8 dB(A), which is relatively quiet for an air cooler. However, under full load, it may generate more noise compared to the ARCTIC model. Users who prioritize a quieter cooling solution might lean towards the Liquid Freezer III Pro due to its design and fan technology.
Price-to-Performance Ratio
With the ARCTIC Liquid Freezer III Pro priced at $94.99, it positions itself in the premium segment of CPU coolers, offering advanced features and superior performance that justify the cost for enthusiasts. Its robust cooling capabilities and additional VRM fan make it an appealing option for high-performance systems.
In contrast, the Thermalright Assassin X 120R, at $24.90, delivers a compelling price-to-performance ratio for users who need effective cooling without the bells and whistles of liquid solutions. For everyday use, the performance it offers can be considered excellent value, particularly for budget-conscious builders.
Customer Support and Warranty
Both brands offer customer support, although specifics regarding warranty terms are not provided in the data. Generally, ARCTIC products are known for having solid customer service and warranty support, which can be a crucial factor for buyers investing in higher-end products.
Thermalright, while also reputable, may not have the same level of brand recognition as ARCTIC in certain markets. Users may want to consider past experiences or reviews regarding customer service when choosing between these products.
Which should you buy?
Choosing between the ARCTIC Liquid Freezer III Pro 360 and the Thermalright Assassin X 120R ultimately depends on your specific needs and budget. If you seek top-tier cooling performance, particularly for high-end or overclocked systems, the ARCTIC Liquid Freezer III Pro 360 is the clear choice, despite its higher price tag of $94.99.
However, if you're looking for a cost-effective solution that provides decent cooling for everyday tasks, the Thermalright Assassin X 120R at $24.90 offers excellent value. For users with budget constraints or smaller cases, the Thermalright model may be more appealing. In the end, both coolers have their strengths, and the best choice will align with your cooling requirements and financial considerations.

