Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi vs Thermalright Assassin X 90 SE V2 CPU Cooler
Updated August 2026 — The Thermalright Assassin X 120R offers advanced features and better cooling performance, making it the superior choice. However, the Assassin X 90 SE V2 provides solid performance at a lower price.
The Thermalright Assassin X 120R offers advanced features and better cooling performance, making it the superior choice. However, the Assassin X 90 SE V2 provides solid performance at a lower price.
Why Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi is better
Digital Display
The 120R has a digital screen for real-time monitoring.
Higher RPM
The 120R features a 2000RPM fan for optimized cooling.
Better Materials
The 120R uses UL Class A materials for enhanced durability.
Why Thermalright Assassin X 90 SE V2 CPU Cooler is better
Lower Price
The 90 SE V2 is priced at C$24.90.
Compact Size
The 90 SE V2 has smaller dimensions for better compatibility.
Higher Fan Speed
The 90 SE V2 has a fan speed of 2200RPM.
Overall score
Specifications
| Spec | Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi | Thermalright Assassin X 90 SE V2 CPU Cooler |
|---|---|---|
| Fan Speed | 2000RPM | 2200RPM |
| Noise Level | ≤23dB | ≤23.85dB |
| Compatibility | Intel/AMD | Intel/AMD |
| Material | PBT+PC | Aluminum |
| Price | C$28.39 | C$24.90 |
Dimension comparison
Overview of the Thermalright Assassin X CPU Coolers
In this article, we will compare two CPU coolers from Thermalright: the Thermalright Assassin X 120R Digital ARGB White and the Thermalright Assassin X 90 SE V2. The former is priced at C$28.39, while the latter is more budget-friendly at C$24.90. Both coolers are designed to provide effective heat dissipation for your CPU, but they feature different technologies and designs that may influence your purchasing decision.
Design and Aesthetics
The Thermalright Assassin X 120R Digital ARGB White features a sleek design with a digital screen top cover, allowing users to monitor CPU temperature and usage in real-time. This digital screen is powered through a 9-pin USB interface connected to the motherboard. In contrast, the Thermalright Assassin X 90 SE V2 has a more straightforward design, focusing on functionality rather than aesthetics. While it lacks a digital display, its compact dimensions of 94mm x 77mm x 118mm allow it to fit well in various chassis models.
Cooling Performance
Cooling performance is crucial for any CPU cooler. The Thermalright Assassin X 120R employs a 2000RPM PWM fan, which can adjust its speed based on the motherboard's temperature, ensuring optimized cooling. This cooler utilises four 6mm heat pipes with AGHP technology, enhancing heat dissipation efficiency. On the other hand, the Thermalright Assassin X 90 SE V2 has a slightly higher fan speed of 2200RPM, which allows it to push more air (32.77CFM) for effective cooling. However, it operates at a noise level of around 23.85dB, which may be a consideration for users seeking a quieter system.
Build Quality and Materials
Both coolers are constructed from high-quality materials designed for durability and performance. The Thermalright Assassin X 120R features UL Class A safety insulation grade materials, including industrial-grade PBT+PC, which ensures longevity. It also employs nickel-plated anti-oxidation heat pipes for enhanced heat transfer. Conversely, the Thermalright Assassin X 90 SE V2 also utilises UL Class A materials alongside aluminum for its heat sink and HDT direct touch process for efficient thermal conductivity. Both coolers aim for a long service life, with the 90 SE V2 rated for up to 20,000 hours.
Noise Levels
Noise levels can significantly impact user experience, especially in gaming or productivity environments. The Thermalright Assassin X 120R's design, with silicone corner pads around the fan, helps to reduce noise from vibrations during operation, making it a quieter choice. While specific noise levels are not mentioned for the 120R, it is designed to operate efficiently without excessive noise. In contrast, the Thermalright Assassin X 90 SE V2 operates at a maximum noise level of 23.85dB, which is relatively quiet but still measurable in a silent room. If noise is a priority, the design elements of the 120R could offer an edge.
Compatibility
Compatibility with various CPU socket types is essential for any cooler. The Thermalright Assassin X 120R is designed to support both Intel and AMD sockets, making it versatile for users with different setups. It is compatible with Intel’s 1150, 1151, 1155, 1156, and 1200 sockets, as well as AMD’s AM4 and AM5 platforms. Similarly, the Thermalright Assassin X 90 SE V2 also supports a wide range of Intel and AMD sockets, including the same Intel models and AMD's AM4 and AM5. This means that both coolers can cater to a broad audience, making them suitable for various builds.
Price and Value
When it comes to price, the Thermalright Assassin X 120R is available for C$28.39, while the Thermalright Assassin X 90 SE V2 is priced at C$24.90. The price difference of C$3.49 may seem minor, but it reflects the additional features and technology present in the 120R. For users looking for advanced monitoring capabilities and a visually appealing design, the 120R may justify its higher price. However, for those seeking value without the need for extra features, the 90 SE V2 offers solid performance at a lower cost.
User Experience and Installation
User experience and ease of installation are crucial factors for any CPU cooler. The Thermalright Assassin X 120R provides a user-friendly setup process, especially with the digital screen that offers real-time monitoring. Its design allows for efficient airflow and heat dissipation while being relatively easy to install. The Thermalright Assassin X 90 SE V2 is also designed for straightforward installation, with detailed instructions provided for various CPU socket types. Its compact size makes it an excellent choice for smaller cases, ensuring that it doesn’t obstruct other components.
Which should you buy?
Ultimately, the choice between the Thermalright Assassin X 120R Digital ARGB White and the Thermalright Assassin X 90 SE V2 comes down to personal preference and specific needs. If you value aesthetic features, real-time monitoring, and advanced cooling performance, the 120R is worth the extra cost at C$28.39. However, if you're looking for a reliable and efficient cooler at a lower price point, the Assassin X 90 SE V2, priced at C$24.90, remains a strong contender. Both coolers offer solid performance, making either a reasonable choice depending on your requirements.
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