Noctua NH-L12S vs Delta A40 ARGB CPU Cooler
Updated August 2026 — The Noctua NH-L12S excels in noise levels, build quality, and included thermal paste, making it ideal for users prioritizing quiet and premium cooling. The Delta A40 offers superior cooling power and aesthetics at a much lower price, suiting budget-conscious buyers.
The Noctua NH-L12S excels in noise levels, build quality, and included thermal paste, making it ideal for users prioritizing quiet and premium cooling. The Delta A40 offers superior cooling power and aesthetics at a much lower price, suiting budget-conscious buyers.
Why Noctua NH-L12S is better
Noise Levels
Noctua offers ultra-quiet operation with low-noise adaptor
Thermal Paste
Includes high-end NT-H1 thermal paste
Installation
SecuFirm2 mounting system with broad socket support
Why Delta A40 ARGB CPU Cooler is better
Price
Delta A40 costs C$19.29 vs Noctua's C$87.95
Cooling Power
Supports up to 220W dissipation, higher than Noctua
Design
Customizable ARGB lighting and unique circular design
Overall score
Specifications
| Spec | Noctua NH-L12S | Delta A40 ARGB CPU Cooler |
|---|---|---|
| Price | C$87.95 | C$19.29 |
| Fan Size | 120mm | 120mm |
| Max Dissipation | Moderate heat load | Up to 220W |
| Noise Level | Ultra-quiet (no exact dB) | ≤29 dB(A) |
| Lighting | None | ARGB customizable |
| Thermal Paste | Included NT-H1 | Not included |
| Mounting | SecuFirm2 system | All-metal hardware |
| Compatibility | Intel LGA1851/1700/1200/115x, AMD AM5/AM4 | Intel LGA115X/1200/1700/1851, AMD AM4/AM5 |
Dimension comparison
Price Comparison
When it comes to price, the Delta A40 ARGB CPU Cooler is significantly more affordable at C$19.29 compared to the Noctua NH-L12S, which retails for C$87.95. This substantial difference of C$68.66 makes the Delta A40 an attractive option for budget-conscious consumers looking for efficient CPU cooling solutions. While the Noctua is positioned as a premium product with advanced features, the Delta A40 offers a competitive price point, making it a feasible choice for entry-level builds or casual users.
Design and Aesthetics
The aesthetics of the Delta A40 are striking, featuring a unique circular design that enhances its visual appeal with a mirror-like finish. This modern design is complemented by customizable ARGB lighting effects, allowing users to personalize their setup. In comparison, the Noctua NH-L12S is designed with a more utilitarian approach, focusing on its compact and low-profile form factor, which is ideal for ITX and HTPC systems. While both coolers aim to appeal to users, the Delta A40 leans towards a more flashy design, while the Noctua prioritizes functionality and efficiency.
Cooling Performance
The Noctua NH-L12S is engineered for moderate heat loads, making it suitable for CPUs like the AMD Ryzen 7950X3D and Intel 285K, among others. It utilizes a highly optimized NF-A12x15 120mm fan that supports PWM for automatic speed control, ensuring ultra-quiet operation. On the other hand, the Delta A40 boasts an impressive capability to handle power dissipation of up to 220W, making it an excellent choice for high-performance gaming or creative tasks. Its 120mm PWM fan operates at a speed range of 500-2000 RPM, delivering a balanced airflow of 73 CFM. In terms of sheer cooling potential, the Delta A40 appears to offer superior performance for demanding applications.
Noise Levels
Noise levels are crucial for users seeking a quiet computing environment. The Noctua NH-L12S excels in this area, offering ultra-quiet operation due to its low-noise adaptor and optimized fan design. While specific decibel ratings are not provided for the NH-L12S, Noctua is renowned for its quiet performance. In contrast, the Delta A40 operates at a maximum noise level of 29 dB(A), which is relatively quiet for a performance-oriented cooler. However, for users prioritizing silence, the Noctua likely has the edge, especially in settings where lower noise levels are critical.
Installation and Compatibility
Both coolers are designed for easy installation, but they cater to slightly different user needs. The Noctua NH-L12S includes the SecuFirm2 mounting system, ensuring compatibility with a wide range of Intel and AMD sockets, including LGA1851, LGA1700, and AM5. This makes it a versatile choice for various systems. Conversely, the Delta A40 also supports multiple platforms with its all-metal mounting hardware, compatible with AM4/AM5 for AMD and LGA115X/1200/1700/1851 for Intel. While both coolers are user-friendly, the Noctua's reputation for reliable installation might appeal more to those concerned about ease of setup.
Thermal Paste
Thermal paste can significantly affect cooling performance, and the Noctua NH-L12S comes with high-end NT-H1 thermal paste included in the packaging. This premium thermal paste is known for its excellent conductivity and longevity, further enhancing the cooler's performance. The Delta A40 does not mention any included thermal paste, which could be a consideration for users who prefer to use high-quality paste for optimal thermal transfer. This advantage in the Noctua's package adds to its appeal for users who want a comprehensive cooling solution right out of the box.
Target Audience
The Noctua NH-L12S is aimed at users who require a compact, efficient CPU cooler for systems with moderate heat loads, particularly in smaller form factors like ITX and HTPC builds. Its premium features and higher price reflect its suitability for enthusiasts and those with specific cooling needs. Conversely, the Delta A40 targets budget-conscious consumers and casual gamers who desire effective cooling without breaking the bank. The lower price point, combined with solid performance metrics, makes it an accessible choice for a wider audience.
Which should you buy?
The decision between the Noctua NH-L12S and the Delta A40 ARGB CPU Cooler hinges on your specific needs and budget. If you're looking for a premium, low-profile cooler with excellent noise performance and included thermal paste, the Noctua NH-L12S is a clear winner. However, if you're on a tight budget and need a visually appealing cooler that performs adequately under higher loads, the Delta A40 is a strong contender. Ultimately, your choice will depend on whether you prioritize performance and quiet operation or affordability and aesthetic appeal.
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