Noctua NH-L9i-17xx vs Thermalright Peerless Assassin 120 SE CPU Cooler,

Design and Build Quality

The Noctua NH-L9i-17xx features a compact design ideal for small form factor cases, while the Thermalright Peerless Assassin 120 SE boasts a more substantial build for enhanced cooling. The Noctua cooler stands at only 37mm in height, making it perfect for compact HTPC and SFF cases. Its tailored footprint ensures complete RAM and PCIe compatibility on various motherboards. In contrast, the Thermalright cooler measures 125mm in length, 135mm in width, and 155mm in height, showcasing a double tower design that enhances its cooling capabilities. Each cooler is built with quality in mind, but their designs cater to different user needs: compactness versus high-performance cooling.

Cooling Performance

When it comes to cooling performance, the Thermalright Peerless Assassin 120 SE is designed for superior heat dissipation thanks to its dual 120mm PWM fans and six heat pipes. The fans can operate at a speed of 1550 RPM, providing a maximum airflow of 66.17 CFM while maintaining a noise level of 25.6 dB(A). Comparatively, the Noctua NH-L9i-17xx utilizes a single NF-A9x14 slim 92mm fan that offers quiet operation with optimal cooling performance under load. While both coolers are effective, the Thermalright's design is more suited for high-performance setups, particularly with higher thermal loads.

Compatibility

The Noctua NH-L9i-17xx is specifically tailored for Intel LGA1700 and LGA1851 CPUs, making it an excellent choice for users with these processors. It also comes with a high-end NT-H1 thermal paste and a mounting system that ensures easy installation. On the other hand, the Thermalright Peerless Assassin 120 SE supports a broader range of sockets, including Intel LGA1700, 1150, 1151, 1200, and 1851, as well as AMD AM4 and AM5. This versatility makes the Thermalright cooler a better option for users with mixed systems or those who may upgrade in the future.

Noise Levels

The Noctua NH-L9i-17xx is renowned for its quiet operation, especially when combined with the Low-Noise Adaptor that allows for automatic speed control. It operates silently at idle, making it ideal for users who prioritize a noise-free environment. In contrast, the Thermalright Peerless Assassin 120 SE, while still relatively quiet, produces a noise level of up to 25.6 dB(A) at full speed. Users looking for a cooler that can maintain a minimal noise profile during regular use may prefer the Noctua model, given its reputation for whisper-quiet performance.

Price Comparison

The Noctua NH-L9i-17xx is priced at $49.95, while the Thermalright Peerless Assassin 120 SE is slightly more expensive at $49.99. This means that the Noctua cooler is about 0.8% cheaper than the Thermalright model. Given that both products are positioned similarly in terms of price, users will need to weigh the features and benefits of each cooler to determine which offers greater value based on their specific needs.

Brand Reputation

Noctua has built a strong reputation for high-quality cooling solutions, with the NH-L9i-17xx receiving numerous awards and recommendations from hardware websites. The brand is known for its exceptional build quality and long-lasting performance, backed by a six-year manufacturer’s warranty. Meanwhile, Thermalright has over 20 years of experience in the hardware market and has gained popularity for its innovative designs and effective cooling solutions. Both brands are reputable, but Noctua may have the edge in terms of user trust and award recognition.

Installation Process

The Noctua NH-L9i-17xx comes with a SecuFirm2 mounting system that simplifies installation on Intel LGA1700 and LGA1851 CPUs. This ease of installation is a significant advantage for those who may not be familiar with complex mounting procedures. Conversely, the Thermalright Peerless Assassin 120 SE requires attention to detail during installation, particularly for AMD systems, as it necessitates the use of the motherboard's built-in backplane. While both coolers can be installed by most users, the Noctua model is likely to appeal more to beginners or those seeking a hassle-free setup.

Which should you buy?

Choosing between the Noctua NH-L9i-17xx and the Thermalright Peerless Assassin 120 SE ultimately depends on your specific needs and system configuration. If you're looking for a compact, quiet cooler designed for Intel CPUs, the Noctua is an excellent choice, especially for small form factor builds. However, if you require a more powerful cooling solution that is compatible with both Intel and AMD systems, the Thermalright model may be the better option. Both coolers offer quality performance, but their distinct features cater to different user preferences.