Thermalright Assassin X 120 V2 Plus CPU Cooler 4 Heat Pipes with AGHP Technology vs Noctua NH-U12S
Updated August 2026 — The Thermalright Assassin X 120 V2 Plus offers great value for budget-conscious users, while the Noctua NH-U12S excels in performance and quiet operation.
The Thermalright Assassin X 120 V2 Plus offers great value for budget-conscious users, while the Noctua NH-U12S excels in performance and quiet operation.
Why Thermalright Assassin X 120 V2 Plus CPU Cooler 4 Heat Pipes with AGHP Technology is better
lower price
C$25.90 vs C$79.95
compact size
fits in tighter cases
AGHP technology
enhances cooling efficiency
Why Noctua NH-U12S is better
quiet operation
ultra-quiet NF-F12 fan
build quality
6-year warranty
ease of installation
includes high-end thermal paste
Overall score
Specifications
| Spec | Thermalright Assassin X 120 V2 Plus CPU Cooler 4 Heat Pipes with AGHP Technology | Noctua NH-U12S |
|---|---|---|
| Cooling Tech | AGHP | NF-F12 |
| Socket Support | Intel/AMD | Intel/AMD |
| Noise Level | low | ultra-low |
| Warranty | N/A | 6 years |
| Installation | easy | very easy |
Dimension comparison
Overview of the Thermalright Assassin X 120 V2 Plus and Noctua NH-U12S
The Thermalright Assassin X 120 V2 Plus is priced at C$25.90, while the Noctua NH-U12S commands a significantly higher price of C$79.95. This price difference indicates that potential buyers may have varying budgets and cooling performance needs. Both products aim to deliver superior CPU cooling but cater to distinct segments of the market.
The Thermalright Assassin X 120 V2 Plus features four heat pipes and employs AGHP technology, enhancing its cooling efficiency. In contrast, the Noctua NH-U12S is known for its slim-tower design and highly optimised NF-F12 fan, which is engineered for quiet operation and effective airflow. Understanding their unique offerings can help you decide which one better suits your needs.
Design and Dimensions
The design of a CPU cooler plays a pivotal role in its compatibility and performance. The Thermalright Assassin X 120 V2 Plus measures 120(L)x96(W)x154(H)mm, making it a compact option that can fit into various setups. Its four heat pipes are designed to optimise cooling performance, while the aluminium heat sink ensures effective heat dissipation.
On the other hand, the Noctua NH-U12S offers a classic 120mm slim-tower design, which not only enhances cooling but also improves case and RAM compatibility. This cooler is designed to avoid overhanging RAM or PCIe slots, which can be a significant advantage in tighter cases. The NH-U12S’s well-thought-out dimensions offer a balance between performance and compatibility, essential for many builds.
Cooling Performance
Cooling performance is arguably the most critical aspect of any CPU cooler. The Thermalright Assassin X 120 V2 Plus features four 6mm heat pipes that utilise AGHP technology, which aims to mitigate the inverse gravity effect often seen in vertical or horizontally oriented coolers. This innovative approach can lead to better heat transfer and management, enhancing overall cooling efficiency.
Conversely, the Noctua NH-U12S is celebrated for its highly optimised NF-F12 120mm Focused Flow fan. This fan is designed for PWM support, allowing automatic speed control for ultra-quiet operation. The NH-U12S’s focus on quiet performance without compromising cooling capabilities makes it an excellent choice for users who prioritise noise levels in their builds. Both coolers excel in cooling, but their methodologies differ significantly.
Installation Process
Ease of installation is another crucial factor to consider when selecting a CPU cooler. The Thermalright Assassin X 120 V2 Plus comes equipped with metal fasteners compatible with a wide range of Intel and AMD platforms, ensuring a straightforward installation process. Video instructions are also available, making it an excellent option for DIY builders who may need extra guidance.
In contrast, the Noctua NH-U12S includes the SecuFirm2 mounting system, which is designed to simplify installation on various Intel and AMD sockets. The inclusion of high-end NT-H1 thermal paste further enhances the installation experience, ensuring that users have everything they need right out of the box. Both coolers are designed with user-friendliness in mind, but the NH-U12S’s inclusion of premium thermal paste may provide an edge in terms of convenience.
Noise Levels
Noise levels are an essential consideration for many PC builders, especially those who value a quiet computing environment. The Thermalright Assassin X 120 V2 Plus features S-FDB bearings, which are designed to minimise fan noise while maximising cooling performance. This means users can expect a quieter experience without sacrificing efficiency.
The Noctua NH-U12S is also known for its ultra-quiet operation, thanks to its highly optimised fan that includes a Low-Noise Adapter for automatic speed control. This design allows the NH-U12S to operate quietly under light loads, making it ideal for both gaming and office use. While both coolers aim for low noise levels, the NH-U12S has a reputation for exceptional quietness, appealing to users seeking silence.
Build Quality and Reliability
When investing in a CPU cooler, build quality and reliability are paramount. The Thermalright Assassin X 120 V2 Plus boasts a robust construction, with industrial-strength materials that ensure durability. The S-FDB bearings are specifically designed to extend the life of the cooler, promising up to 20,000 hours of service.
Noctua is renowned for its high build quality and reliability, which is backed by a 6-year manufacturer's warranty. The NH-U12S’s reputation for longevity and performance is a testament to Noctua’s commitment to quality. While both coolers are built to last, the NH-U12S’s extended warranty may offer additional peace of mind for potential buyers.
Price Comparison
Price is often a deciding factor in any purchase, and the difference between the Thermalright Assassin X 120 V2 Plus and the Noctua NH-U12S is significant. The Assassin X is priced at a budget-friendly C$25.90, making it accessible for users looking for effective cooling without breaking the bank. This makes it an attractive option for budget-conscious gamers and builders.
On the other hand, the Noctua NH-U12S, priced at C$79.95, reflects its premium build quality and performance features. While it is more expensive, many users may find the additional investment justified, considering its silent operation and extended warranty. The price difference clearly positions these two coolers for different target markets.
Which should you buy?
Choosing between the Thermalright Assassin X 120 V2 Plus and the Noctua NH-U12S ultimately depends on your specific needs and budget. If you are looking for an affordable CPU cooler with solid performance and a straightforward installation process, the Thermalright Assassin X 120 V2 Plus is an excellent choice. Its innovative AGHP technology and budget-friendly price make it a compelling option for many users.
However, if you prioritise noise levels, build quality, and a more robust warranty, the Noctua NH-U12S stands out despite its higher price tag. Its performance and quiet operation make it ideal for those who demand the best from their cooling solutions. Assess your requirements and preferences carefully to make the best decision for your PC build.
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