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Noctua NH-D15 G2, Dual Tower CPU Cooler, Standard vs Thermalright Peerless Assassin 120 Digital ARGB

Updated August 2026 — Noctua NH-D15 G2, Dual Tower CPU Cooler, Standard wins on cooling perf and ease of install, Thermalright Peerless Assassin 120 Digital ARGB wins on aesthetics and value for money.

The Noctua NH-D15 G2 offers superior cooling performance and build quality, while the Thermalright Peerless Assassin 120 provides excellent value for budget-conscious users.

Why Noctua NH-D15 G2, Dual Tower CPU Cooler, Standard is better

Cooling Performance

Noctua has more heat pipes and larger fans.

Brand Reputation

Noctua is known for high-quality cooling solutions.

Noise Levels

Noctua operates near-silently at idle.

Why Thermalright Peerless Assassin 120 Digital ARGB is better

Price

Thermalright is significantly cheaper.

Compatibility

Thermalright supports a wider range of sockets.

Aesthetics

Thermalright has a modern design with a digital screen.

Overall score

Noctua NH-D15 G2, Dual Tower CPU Cooler, Standard
90
Thermalright Peerless Assassin 120 Digital ARGB
70

Specifications

SpecNoctua NH-D15 G2, Dual Tower CPU Cooler, StandardThermalright Peerless Assassin 120 Digital ARGB
Current Price$174.95$45.90
Fan Speedmax 1500 RPMmax 1850 RPM
Noise Level≤24.0 dB(A)≤25.6 dB(A)
Socket SupportAM5, LGA1851AM4, LGA1700
Thermal PasteNT-H2Included

Dimension comparison

Noctua NH-D15 G2, Dual Tower CPU Cooler, StandardThermalright Peerless Assassin 120 Digital ARGB

Price Comparison

The Noctua NH-D15 G2 is priced at $174.95, making it significantly more expensive than the Thermalright Peerless Assassin 120, which retails for $45.90. This price difference of $129.05 means the Thermalright cooler is about 74% cheaper than its Noctua counterpart. For users on a budget, the Thermalright model presents a compelling value proposition without sacrificing essential cooling performance.

Cooling Performance

The Noctua NH-D15 G2 boasts an advanced cooling solution with eight heat pipes and a remarkable 20% increase in surface area. This design is complemented by two state-of-the-art NF-A14x25r G2 140mm fans that ensure maximum efficiency even under load. In contrast, the Thermalright Peerless Assassin 120 features six heat pipes and dual fans with a maximum speed of 1850 RPM. While both coolers are designed for optimal heat dissipation, the Noctua's superior design and enhanced features make it more suitable for high-performance CPUs, especially demanding setups.

Design and Aesthetics

In terms of aesthetics, the Noctua NH-D15 G2 showcases a classic brown and beige color scheme, which may appeal to users seeking a more traditional look. The Thermalright Peerless Assassin 120, on the other hand, offers a modern black design with a digital screen on the top cover, appealing to gamers and PC builders who prioritize visuals. The choice between these designs ultimately depends on personal preference and the overall theme of the user's build.

Installation Process

The Noctua NH-D15 G2 comes with a Torx-based SecuFirm2+ mounting system, which is designed for easy installation across various platforms, including AMD AM5 and Intel LGA1851. Meanwhile, the Thermalright Peerless Assassin 120 also emphasizes user-friendliness with dual-platform mounting clips and an installation guide. However, the Noctua cooler's inclusion of superior NT-H2 thermal paste and a dedicated screwdriver may give it a slight edge in terms of ease of setup.

Compatibility

Both coolers offer wide compatibility across AMD and Intel platforms. The Noctua NH-D15 G2 supports AMD AM5 and Intel LGA1851, while the Thermalright Peerless Assassin 120 accommodates a broader range of sockets, including AM4 and LGA1150 through LGA1700. This means that the Thermalright model may cater to a wider audience, especially those using older or less common CPU sockets.

Noise Levels

The Noctua NH-D15 G2 is designed for near-silent operation, especially at idle, due to its advanced fan design and PWM control. It aims to maintain maximum efficiency without compromising the user's experience with noise. In contrast, the Thermalright Peerless Assassin 120 operates at a maximum noise level of 25.6 dB(A), which is relatively quiet but may not match the near-silent performance of the Noctua under similar conditions. For users highly sensitive to noise levels, the Noctua may be the better choice.

Brand Reputation

Noctua is renowned for its premium cooling solutions and has built a strong reputation in the PC building community for reliability and performance. The NH-D15 G2 is a second-generation product, reflecting years of refinement and improvement. Although Thermalright has its own loyal following and offers solid products like the Peerless Assassin 120, it does not have the same level of recognition as Noctua in the high-end cooler market. This brand reputation can influence purchasing decisions, especially for those seeking long-term reliability.

Which should you buy?

Choosing between the Noctua NH-D15 G2 and the Thermalright Peerless Assassin 120 largely depends on your budget and cooling needs. If you're seeking top-tier performance and are willing to invest in a superior product, the Noctua NH-D15 G2 is a worthwhile investment at $174.95. However, if you're looking for a more economical option that still delivers decent cooling performance, the Thermalright Peerless Assassin 120 at $45.90 could be the perfect fit. Ultimately, both coolers have their strengths, making the final decision a matter of personal preference and specific use case.