Noctua NH-U12S Redux vs Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi
Updated August 2026 — The Noctua NH-U12S Redux offers superior performance and quieter operation, while the Thermalright Assassin X 120R is a budget-friendly option with unique aesthetics.
The Noctua NH-U12S Redux offers superior performance and quieter operation, while the Thermalright Assassin X 120R is a budget-friendly option with unique aesthetics.
Why Noctua NH-U12S Redux is better
Cooling Performance
Noctua's fan is quieter and more efficient under load.
Build Quality
Noctua is known for premium materials and reliability.
Installation Ease
Noctua's SecuFirm2 system simplifies installation.
Why Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi is better
Price
Thermalright is significantly cheaper.
Aesthetic Appeal
Thermalright features a digital screen for monitoring.
Fan Speed
Thermalright's fan operates at a higher RPM.
Overall score
Specifications
| Spec | Noctua NH-U12S Redux | Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi |
|---|---|---|
| Brand | Noctua | Thermalright |
| Price | C$62.95 | C$28.39 |
| Fan Type | PWM | PWM |
| Compatibility | Intel & AMD | Intel & AMD |
| Digital Display | No | Yes |
Dimension comparison
Price Comparison
The Noctua NH-U12S Redux is priced at C$62.95, while the Thermalright Assassin X 120R Digital ARGB White CPU Cooler is significantly more affordable at C$28.39. This translates to a difference of C$34.56, making the Thermalright model a budget-friendly option for those looking to save on cooling solutions. The substantial price gap may appeal to casual users or those building a cost-effective gaming rig. However, the higher price of the Noctua cooler could indicate a premium build quality and performance, which may justify the investment for enthusiasts or professional users seeking top-tier cooling.
Cooling Performance
The Noctua NH-U12S Redux features a quiet NF-P12 redux-1700 120mm fan, designed for automatic speed control through PWM, ensuring optimal cooling performance under load while remaining near silent at idle. In contrast, the Thermalright Assassin X 120R is equipped with a 2000RPM PWM fan, which can also adjust speed based on temperature. While the Noctua cooler is known for its award-winning performance, the Thermalright's higher RPM rating suggests it may offer superior heat dissipation under heavy workloads. Users may want to consider their specific cooling needs—whether they prioritise silence or maximum cooling capacity.
Design and Compatibility
The Noctua NH-U12S Redux boasts a slim design at 120mm height, allowing for excellent compatibility with most tower cases without overhanging RAM slots or blocking PCIe slots on ATX and Micro-ATX motherboards. This makes it a versatile choice for various builds. On the other hand, the Thermalright Assassin X 120R features a digital screen top cover, which not only enhances aesthetics but also provides real-time monitoring of CPU and GPU temperatures. While both coolers are designed for a wide range of setups, the unique digital display of the Thermalright cooler may appeal to users who enjoy monitoring their system's performance visually.
Installation Process
The installation process for the Noctua NH-U12S Redux is facilitated by its SecuFirm2 mounting system, compatible with a variety of Intel and AMD sockets, including LGA1851, LGA1700, LGA1200, LGA115x, and AMD AM5 & AM4. This straightforward installation can be a significant advantage for users who prefer a hassle-free setup. Conversely, the Thermalright Assassin X 120R requires the installation of TRCC software to enable the digital screen features, which may complicate the installation for some users. Those who value ease of installation may lean towards the Noctua cooler, while tech-savvy users might appreciate the added functionality of the Thermalright cooler.
Noise Levels
The Noctua NH-U12S Redux is designed to operate quietly, with its fan providing full cooling performance under load while remaining nearly silent at idle. This makes it an excellent choice for users who prioritise a quiet computing experience, such as those working in noise-sensitive environments. In comparison, the Thermalright Assassin X 120R is also equipped with features to reduce noise, including silicone corner pads for vibration dampening. However, its 2000RPM fan may produce more noise under full load compared to the Noctua model. Users who are particularly sensitive to noise might prefer the Noctua cooler for its quieter operation.
Aesthetic Appeal
Aesthetically, the Thermalright Assassin X 120R stands out with its digital screen top cover, which enhances its visual appeal while providing real-time temperature monitoring. This modern design can be particularly attractive to gamers and PC builders looking to showcase their hardware. On the other hand, the Noctua NH-U12S Redux maintains a more traditional look, focusing on utilitarian design rather than flashy aesthetics. For users who value a sleek and sophisticated appearance, the Thermalright cooler may be more appealing, while those who appreciate a classic, understated look might prefer the Noctua model.
Brand Reputation
Noctua is renowned for its high-quality cooling solutions and has built a strong reputation within the PC community for reliability and performance. The NH-U12S Redux is an iteration of an award-winning design, reflecting the brand's commitment to excellence. Conversely, Thermalright has also established itself as a reputable brand, particularly in the budget cooling segment. While the Noctua may be perceived as the premium option, the Thermalright model offers commendable performance at a much lower price point. Brand preference can greatly influence buyer choices, with Noctua appealing to those seeking top-tier, proven performance, while Thermalright attracts budget-conscious users seeking good value.
Which should you buy?
Choosing between the Noctua NH-U12S Redux and the Thermalright Assassin X 120R Digital ARGB White CPU Cooler ultimately depends on your specific needs and budget. The Noctua model offers quiet operation, superior build quality, and a streamlined installation process, making it an excellent choice for users who value performance and reliability. However, if you're on a budget and seek a cooler that provides decent performance with added visual flair through its digital display, the Thermalright model is hard to beat at its price point. Consider your cooling requirements, aesthetic preferences, and budget constraints to make the best choice for your system.
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