Noctua NH-U9S vs Thermalright Peerless Assassin 120 SE CPU Cooler,

Price Comparison

When it comes to pricing, the Noctua NH-U9S is available for $69.95, while the Thermalright Peerless Assassin 120 SE is priced at $49.99. This makes the Thermalright model approximately 29% cheaper than the Noctua unit. For budget-conscious buyers, this significant price difference could be a decisive factor. While Noctua is known for its premium quality, the more economical option from Thermalright offers an attractive alternative without sacrificing essential performance features, especially for those looking to keep their build costs down.

Cooling Performance

The Noctua NH-U9S features a compact single-tower design that delivers strong cooling performance, specifically optimized for small form factor builds. Its highly efficient NF-A9 92mm fan is designed for ultra-quiet operation, making it an excellent choice for users who value silence alongside cooling efficiency. In contrast, the Thermalright Peerless Assassin 120 SE is equipped with dual 120mm PWM fans, which can reach speeds of up to 1550 RPM and deliver airflows of 66.17 CFM. This dual-fan setup is engineered to provide robust cooling, making it potentially better suited for higher-performance setups or overclocking scenarios.

Size and Compatibility

In terms of size, the Noctua NH-U9S has a slim profile of only 125mm in height, which is particularly beneficial for HTPCs and small cases. It avoids overhanging RAM or PCIe slots on most motherboards, ensuring compatibility in tighter builds. On the other hand, the Thermalright Peerless Assassin 120 SE also has a height of 155mm, making it slightly bulkier. However, it supports a wider variety of socket types, including multiple Intel and AMD platforms. This versatility could be a significant advantage for users who may upgrade their CPU or motherboard in the future.

Installation Process

The installation process is straightforward for both coolers, but they differ in their provided mounting systems. The Noctua NH-U9S comes with the SecuFirm2 mounting system and includes high-end NT-H1 thermal paste, simplifying the process for various Intel and AMD sockets. Meanwhile, the Thermalright Peerless Assassin 120 SE also includes the necessary mounting hardware for both Intel and AMD but requires users to utilize the original motherboard's backplane for AMD installation, which is not included. This could pose a challenge for some users, making the Noctua a potentially easier option for beginners.

Noise Levels

Noise levels are critical for many users who prefer a quiet computing experience. The Noctua NH-U9S is specifically designed for low-noise operation, featuring a Low-Noise Adaptor that allows for automatic speed control. While the exact dB rating is not specified, it is built to operate quietly during normal loads. The Thermalright Peerless Assassin 120 SE, with its dual fans, has a rated noise level of up to 25.6 dB(A). Although this is relatively quiet, it may not match the ultra-quiet performance of the Noctua, particularly at lower RPMs. For users prioritizing silence, the Noctua may have the edge.

Build Quality and Warranty

Build quality is an area where Noctua traditionally excels. The NH-U9S is backed by a six-year manufacturer's warranty, reflecting its durability and reliability. Noctua's reputation for quality is well-established, which can provide peace of mind for purchasers. Conversely, while Thermalright has over 20 years of experience, specific warranty details for the Peerless Assassin 120 SE are not mentioned. The lack of an explicit warranty period may raise questions among potential buyers regarding long-term reliability and support.

Aesthetic Appeal

Aesthetics can play a significant role in choosing a CPU cooler, especially for those who build systems with a visual theme. The Noctua NH-U9S features a distinct brown and beige color scheme that, while not universally appealing, is recognized by enthusiasts as a hallmark of quality. The Thermalright Peerless Assassin 120 SE has a more modern and neutral design that may blend well with a variety of builds. Ultimately, the choice may come down to personal preference, but both coolers offer distinct appearances that cater to different tastes.

Which should you buy?

Deciding between the Noctua NH-U9S and the Thermalright Peerless Assassin 120 SE largely depends on your specific needs and budget. The Noctua is a premium option that excels in size, noise levels, and build quality, making it ideal for compact builds and users who prioritize silence. However, at nearly 29% less expensive, the Thermalright offers excellent cooling performance and compatibility for a wide range of systems, making it a compelling choice for those on a tighter budget or looking for greater cooling power. Ultimately, both coolers are solid contenders, so consider your individual requirements to make the best choice.