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Thermalright Peerless Assassin 120 Black CPU Air Cooler vs Noctua NH-D15 chromax.Black

Updated August 2026The Noctua NH-D15 chromax.Black offers superior cooling performance and build quality, making it the better choice for enthusiasts, while the Thermalright Peerless Assassin 120 Black is a budget-friendly option.

The Noctua NH-D15 chromax.Black offers superior cooling performance and build quality, making it the better choice for enthusiasts, while the Thermalright Peerless Assassin 120 Black is a budget-friendly option.

Why Thermalright Peerless Assassin 120 Black CPU Air Cooler is better

price

Thermalright is priced at C$54.90, significantly lower than Noctua's C$174.95.

weight

Thermalright weighs 1.02 kg, making it easier to handle during installation.

installation

Thermalright has a straightforward installation process with included metal fasteners.

Why Noctua NH-D15 chromax.Black is better

cooling performance

Noctua provides maximum cooling efficiency comparable to all-in-one watercoolers.

brand reputation

Noctua has over 300 awards, reflecting its premium quality and reliability.

noise level

Noctua operates whisper-quiet, especially under low-load scenarios.

Overall score

Thermalright Peerless Assassin 120 Black CPU Air Cooler
70
Noctua NH-D15 chromax.Black
90

Specifications

SpecThermalright Peerless Assassin 120 Black CPU Air CoolerNoctua NH-D15 chromax.Black
PriceC$54.90C$174.95
Fan Speed1500 RPM1200 RPM
Noise Level25.6 dB(A)<20 dB(A)
Heatpipes66
Socket SupportLGA1150-2066, AM4/AM5LGA115x, LGA1700, AM4/AM5

Dimension comparison

Thermalright Peerless Assassin 120 Black CPU Air CoolerNoctua NH-D15 chromax.Black

Price Comparison

When it comes to price, the Thermalright Peerless Assassin 120 Black CPU Air Cooler is significantly more budget-friendly at C$54.90, compared to the Noctua NH-D15 chromax.Black, which retails for C$174.95. This represents a difference of C$120, making the Thermalright cooler an attractive option for those seeking effective cooling without breaking the bank.

The price disparity highlights the varying target audiences of these coolers. While the Thermalright appeals to gamers and PC builders on a budget, the Noctua is aimed at enthusiasts willing to invest more for premium performance and build quality.

Cooling Performance

The Thermalright Peerless Assassin features dual PWM fans that deliver a maximum airflow of 66.17 CFM at a noise level of 25.6 dB(A). This design enhances its heat dissipation capability, making it suitable for standard cooling needs. On the other hand, the Noctua NH-D15 boasts an extra-wide 140mm dual-tower design with six heatpipes, which allows it to provide maximum cooling efficiency comparable to some all-in-one watercoolers.

For overclockers and users who prioritize silent operation, the NH-D15 has dual NF-A15 140mm fans that offer whisper-quiet performance while maintaining full cooling under load. The choice between these two coolers boils down to whether users need budget-friendly cooling or superior performance under demanding conditions.

Design and Aesthetics

In terms of design, the Thermalright Peerless Assassin 120 Black features a sleek black finish with an offset asymmetric layout. This design not only adds aesthetic appeal but also allows for installation on the first graphics card slot without hindering performance.

Conversely, the Noctua NH-D15 chromax.Black comes in an all-black design that fits a wide range of colour schemes, making it an attractive option for custom builds. Its design has earned it over 300 awards, reflecting its reputation in the cooling industry. Ultimately, aesthetic preferences will play a significant role in choosing between these two coolers.

Installation Process

The Thermalright Peerless Assassin is designed for easy installation with its included metal fasteners compatible with both Intel and AMD platforms. It supports multiple CPU socket types, including Intel LGA1150 through LGA2066 and AMD AM4 and AM5.

The Noctua NH-D15 also offers a user-friendly installation experience with its SecuFirm2 mounting system, accommodating a wide variety of Intel and AMD sockets. This includes the latest LGA1700 and AM5 sockets. While both coolers are designed for straightforward installation, users may find the Thermalright's lighter weight of 1.02 kg (2.25 lb) to be an advantage in handling during setup.

Noise Levels

Noise levels are crucial for many PC users, especially for those who value a quiet environment. The Thermalright Peerless Assassin operates at a noise level of 25.6 dB(A) under maximum load, making it relatively quiet for a budget cooler.

In contrast, the Noctua NH-D15 is engineered for whisper-quiet operation, particularly due to its Low-Noise Adaptors that further minimise sound during low-load scenarios. This allows the NH-D15 to function effectively without drawing attention, which is a significant plus for silent enthusiasts. Therefore, while both coolers are designed to operate quietly, the Noctua may offer a more refined solution for users prioritising silence.

Brand Reputation

Brand reputation can significantly influence purchasing decisions. Thermalright has a solid standing in the cooling market, offering budget-oriented products that deliver satisfactory performance. The Peerless Assassin 120 Black is a testament to their commitment to providing good value for money.

On the other hand, Noctua is renowned for its premium offerings and has built a strong reputation based on quality and reliability. With over 300 awards to its name, the NH-D15 is often recommended by hardware experts as a top-tier choice for high-performance builds. For users prioritising brand prestige and proven performance, Noctua holds a distinct advantage.

Compatibility

Both coolers boast excellent compatibility across various CPU sockets, making them versatile choices for different builds. The Thermalright Peerless Assassin supports Intel sockets from LGA1150 up to LGA2066 and AMD sockets AM4 and AM5, ensuring it can cater to a wide range of systems.

Similarly, the Noctua NH-D15 chromax.Black includes support for Intel's LGA1851, LGA1700, LGA1200, and LGA115x, along with AMD's AM4 and AM5 sockets. However, the NH-D15 also incorporates an offset mounting option for added efficiency. Users will find both coolers suitable for most modern CPUs, but the Noctua’s additional mounting flexibility could provide an edge in specific configurations.

Which should you buy?

Choosing between the Thermalright Peerless Assassin 120 Black CPU Air Cooler and the Noctua NH-D15 chromax.Black ultimately depends on your specific needs and budget. The Thermalright is an excellent choice for those looking for effective cooling at a significantly lower price of C$54.90. It offers decent performance, quiet operation, and easy installation, making it suitable for budget builds or casual gamers.

Conversely, the Noctua NH-D15, priced at C$174.95, is tailored for those who demand top-notch cooling performance and are willing to invest more for exceptional quality and quieter operation. Its award-winning design and proven track record make it a favourite among enthusiasts and overclockers alike. Therefore, if performance and brand reputation are paramount, the Noctua is the superior choice, while the Thermalright stands out for cost-conscious users.

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Thermalright Peerless Assassin 120 Black CPU Air Cooler vs Noctua NH-D15 chromax.Black | versusfinder