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Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler vs Noctua NH-D12L

Updated August 2026The Thermalright Peerless Assassin 120 SE ARGB offers great value for budget-conscious users, while the Noctua NH-D12L excels in quiet operation and compatibility. Choose based on your priorities.

The Thermalright Peerless Assassin 120 SE ARGB offers great value for budget-conscious users, while the Noctua NH-D12L excels in quiet operation and compatibility. Choose based on your priorities.

Why Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler is better

Price

Thermalright is significantly cheaper at C$46.90.

Aesthetics

Thermalright features colorful ARGB lighting.

TDP Support

Thermalright supports a higher TDP of 120 to 245W.

Why Noctua NH-D12L is better

Noise Level

Noctua operates quieter with advanced fan technology.

Compatibility

Noctua supports a wider range of sockets.

Warranty

Noctua offers a longer 6-year warranty.

Overall score

Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler
75
Noctua NH-D12L
88

Specifications

SpecThermalright Peerless Assassin 120 SE ARGB CPU Air CoolerNoctua NH-D12L
PriceC$46.90C$131.95
Cooling TypeAirAir
Fan Speed1500 RPMPWM Controlled
Noise Level25.6 dB(A)Whisper Quiet
Socket SupportIntel/AMDIntel/AMD

Dimension comparison

Thermalright Peerless Assassin 120 SE ARGB CPU Air CoolerNoctua NH-D12L

Overview of Thermalright Peerless Assassin 120 SE ARGB and Noctua NH-D12L

The Thermalright Peerless Assassin 120 SE ARGB is priced at C$46.90, while the Noctua NH-D12L is significantly higher at C$131.95. This price difference highlights two distinct cooling philosophies: budget-friendly performance versus premium engineering.

Thermalright has established itself as a competitive player in the CPU cooler market, boasting over 20 years of development. The Peerless Assassin 120 SE ARGB aims to deliver strong cooling performance through its double tower design and ARGB lighting. On the other hand, Noctua is renowned for its high-quality cooling solutions, and the NH-D12L focuses on quiet operation and compatibility with a wide range of systems, particularly in tight spaces.

Cooling Performance

Cooling performance is crucial when selecting a CPU cooler, and both models offer distinct advantages. The Thermalright Peerless Assassin 120 SE ARGB supports a thermal design power (TDP) of 120 to 245W, benefiting from six pure copper heat pipes and a dual-tower design. This configuration significantly enhances its cooling capabilities under load.

Conversely, the Noctua NH-D12L is designed with a low-height dual-tower heatsink that excels in quiet cooling performance. This cooler is particularly efficient in tight spaces, making it suitable for most 4U rackmount server cases. Its state-of-the-art NF-A12x25r 120mm fan incorporates Low-Noise Adaptors for whisper-quiet operation, ensuring that users experience minimal noise during intensive tasks.

Design and Aesthetics

When it comes to design, the Thermalright Peerless Assassin 120 SE ARGB stands out with its colourful ARGB lighting effects, appealing to gamers and PC builders who value visual aesthetics. The dimensions of this cooler are 125mm x 135mm x 155mm, allowing it to fit in most cases while maintaining a striking appearance.

In contrast, the Noctua NH-D12L features a more subdued yet elegant design, prioritising function over flashy aesthetics. With a height of 145mm, it remains compact while delivering excellent performance. Its asymmetrical layout ensures 100% RAM compatibility, making it an ideal choice for users who require a functional yet unobtrusive cooler.

Compatibility

Compatibility is a vital consideration for any CPU cooler, and both products cater to a range of socket types. The Thermalright Peerless Assassin 120 SE ARGB supports Intel sockets 115X/1200/1700/17XX and AMD AM4, providing versatility for various builds. It also includes the necessary mounting hardware for easy installation.

The Noctua NH-D12L offers even broader compatibility, supporting Intel LGA1851, LGA1700, LGA1200, LGA115X, and AMD AM5 & AM4 sockets. This extensive compatibility, combined with its offset mounting option, makes it an excellent choice for users looking to future-proof their systems and ensure seamless integration with a wide range of components.

Noise Levels

Noise levels are an important factor for many users, especially those who prioritise a quiet computing experience. The Thermalright Peerless Assassin 120 SE ARGB operates at a maximum noise level of 25.6 dB(A), which is relatively low for a cooler of its performance level. This allows it to provide effective cooling without becoming a distraction.

The Noctua NH-D12L, however, takes quiet operation to another level. Thanks to its advanced NF-A12x25r fan and Low-Noise Adaptors, it guarantees a whisper-quiet experience even under load. This cooler is designed to deliver full cooling performance without compromising on noise levels, making it the go-to choice for users who value silence in their setups.

Installation Process

The installation process can greatly influence user experience, and both coolers offer straightforward setups. The Thermalright Peerless Assassin 120 SE ARGB includes metal fasteners for both Intel and AMD platforms, enabling easy and reliable installation. This thoughtful design helps ensure that users can set up their cooling solutions without unnecessary hassle.

Similarly, the Noctua NH-D12L features the SecuFirm2 mounting system, which is well-regarded for its simplicity and effectiveness. This cooler comes with high-end NT-H1 thermal paste, further simplifying the installation process. Users can expect an efficient and comfortable installation experience with both products, but Noctua's reputation for user-friendly designs may give it an edge.

Price and Value

Price is a significant differentiator between these two products. The Thermalright Peerless Assassin 120 SE ARGB is priced at C$46.90, making it an attractive option for budget-conscious consumers seeking solid performance without breaking the bank. Its combination of features, aesthetics, and performance offers excellent value for the price.

In stark contrast, the Noctua NH-D12L commands a higher price of C$131.95. While this may deter some buyers, the investment reflects Noctua's renowned quality, reliability, and performance. Users willing to spend more can expect superior engineering, quieter operation, and a longer warranty period, making it a strong choice for enthusiasts and professionals alike.

Which should you buy?

The choice between the Thermalright Peerless Assassin 120 SE ARGB and the Noctua NH-D12L ultimately depends on your specific needs and budget. If you are looking for an affordable solution that offers decent cooling performance and appealing aesthetics, the Thermalright Peerless Assassin 120 SE ARGB is an excellent choice at C$46.90. However, for users prioritising quiet operation, broad compatibility, and superior build quality, the Noctua NH-D12L, priced at C$131.95, is well worth the investment. Both products have their merits, making them suitable for different types of users in the CPU cooler market.

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Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler vs Noctua NH-D12L | versusfinder