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Thermalright Peerless Assassin 120 Black CPU Air Cooler vs Noctua NH-D15 G2 LBC

Updated August 2026The Noctua NH-D15 G2 LBC offers superior cooling performance and build quality, making it the better choice for enthusiasts, while the Thermalright Peerless Assassin 120 Black is a great budget option.

The Noctua NH-D15 G2 LBC offers superior cooling performance and build quality, making it the better choice for enthusiasts, while the Thermalright Peerless Assassin 120 Black is a great budget option.

Why Thermalright Peerless Assassin 120 Black CPU Air Cooler is better

price

Thermalright is significantly cheaper at C$54.90

compatibility

Supports a wide range of Intel and AMD sockets

noise level

Operates quietly at 25.6 dB(A)

Why Noctua NH-D15 G2 LBC is better

cooling performance

Superior cooling with 8 heat pipes and larger surface area

build quality

Robust design with a 6-year warranty

fan technology

Includes advanced NF-A14x25r G2 fans for better efficiency

Overall score

Thermalright Peerless Assassin 120 Black CPU Air Cooler
65
Noctua NH-D15 G2 LBC
90

Specifications

SpecThermalright Peerless Assassin 120 Black CPU Air CoolerNoctua NH-D15 G2 LBC
Heat Pipes68
Noise Level25.6 dB(A)<25 dB(A)
PriceC$54.90C$209.95
WarrantyStandard6 years
Fan TypePWMNF-A14x25r G2

Dimension comparison

Thermalright Peerless Assassin 120 Black CPU Air CoolerNoctua NH-D15 G2 LBC

Introduction to CPU Cooling Solutions

When it comes to keeping your CPU cool, the choice of air cooler can significantly impact performance and longevity. In this comparison, we will look at two popular models: the Thermalright Peerless Assassin 120 Black CPU Air Cooler and the Noctua NH-D15 G2 LBC. Each cooler has its unique features and price points, making them suitable for different types of users.

Pricing Overview

The Thermalright Peerless Assassin 120 Black is priced at C$54.90, while the Noctua NH-D15 G2 LBC commands a much higher price of C$209.95. This substantial difference of C$155.05 reflects not only the brand reputation but also the technology and features packed into the Noctua model. Budget-conscious consumers may find the Thermalright model appealing, especially if they are looking for decent cooling at a fraction of the cost.

Cooling Performance

The Thermalright Peerless Assassin 120 Black claims an effective heat dissipation area of 9600 cm², primarily due to its dual tower design and six heat pipes. It also features two PWM fans capable of producing an airflow of 66.17 CFM and a noise level of up to 25.6 dB(A), offering strong cooling performance without excessive noise. In contrast, the Noctua NH-D15 G2 LBC boasts eight heat pipes and a larger surface area, which contributes to improved cooling efficiency. With its two NF-A14x25r G2 140mm fans, it provides excellent airflow and operates quietly, making it a top choice for high-performance CPUs.

Installation and Compatibility

The Thermalright Peerless Assassin 120 Black is designed for compatibility with both Intel and AMD sockets, including LGA1700 and AM5, thanks to the included mounting hardware. Its dimensions are 125(L)x135(W)x157(H) mm, making it a relatively compact option for most builds. The Noctua NH-D15 G2 LBC also supports a wide range of sockets but has specific recommendations regarding its use on Intel LGA1700 and LGA1200, suggesting alternative models for those platforms. The offset design of the Noctua cooler allows for better clearance over RAM slots, which could be a deciding factor for those with high-profile RAM.

Noise Levels

The Thermalright Peerless Assassin 120 Black operates at a maximum noise level of 25.6 dB(A), which is relatively quiet for a dual-fan setup. This makes it suitable for users who prioritize a silent working environment. On the other hand, the Noctua NH-D15 G2 LBC is designed with low-noise operation in mind and includes Low-Noise Adaptors for further acoustic tuning. The emphasis on quiet performance is one of Noctua’s hallmarks, making it an excellent choice for enthusiasts who demand silence without sacrificing cooling efficiency.

Build Quality and Design

The Thermalright Peerless Assassin 120 Black features a full electroplating reflow welding process and is finished with black paint at the nanoscale, giving it a sleek appearance. Its design also allows for easy installation in tight spaces. Conversely, the Noctua NH-D15 G2 LBC is renowned for its robust build quality and elegant design featuring a brown and beige colour scheme, which some users may find aesthetically pleasing. The increased surface area and heat pipes in the Noctua cooler contribute to its reputation for superior thermal performance.

Target Audience

The Thermalright Peerless Assassin 120 Black is aimed at budget-conscious gamers and users looking for an efficient yet affordable cooling solution. With its competitive pricing and decent performance, it serves well for mid-range builds. On the other hand, the Noctua NH-D15 G2 LBC targets high-end users and overclockers who are willing to invest in superior cooling technology. Its advanced features and performance capabilities make it ideal for those with demanding CPU workloads.

Warranty and Support

Thermalright typically offers a standard warranty period, which may vary by region and retailer, and while the specifics are not detailed here, it is advisable to check the warranty terms before purchase. Noctua, known for its excellent customer service, provides a 6-year warranty on the NH-D15 G2 LBC, showcasing confidence in its product durability. This long warranty period can be a significant reassurance for users investing in high-end cooling solutions.

Which should you buy?

Ultimately, the choice between the Thermalright Peerless Assassin 120 Black and the Noctua NH-D15 G2 LBC boils down to your specific needs and budget. If you are looking for an economical option that delivers solid performance, the Thermalright model is a great choice at C$54.90. However, if you are an enthusiast or professional requiring top-tier cooling and are willing to pay a premium, the Noctua NH-D15 G2 LBC, priced at C$209.95, is likely to provide the performance and reliability you need.

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Thermalright Peerless Assassin 120 Black CPU Air Cooler vs Noctua NH-D15 G2 LBC | versusfinder