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Thermalright Peerless Assassin 120 CPU Air Cooler vs Gamma A40 ARGB BK CPU Cooler

Updated August 2026The Thermalright Peerless Assassin 120 offers superior cooling performance and features compared to the Gamma A40 ARGB BK, making it the better choice for high-performance setups.

The Thermalright Peerless Assassin 120 offers superior cooling performance and features compared to the Gamma A40 ARGB BK, making it the better choice for high-performance setups.

Why Thermalright Peerless Assassin 120 CPU Air Cooler is better

Cooling Capacity

Peerless Assassin supports up to 245W TDP.

Design

Twin-tower design with ARGB lighting.

Noise Level

Operates at ≤25.6dB(A) for quieter performance.

Why Gamma A40 ARGB BK CPU Cooler is better

Price

Gamma A40 is significantly cheaper at C$29.09.

Compact Size

More suitable for smaller cases.

Installation

Simpler design allows for easier installation.

Overall score

Thermalright Peerless Assassin 120 CPU Air Cooler
85
Gamma A40 ARGB BK CPU Cooler
65

Specifications

SpecThermalright Peerless Assassin 120 CPU Air CoolerGamma A40 ARGB BK CPU Cooler
BrandThermalrightOcypus
Current PriceC$51.39C$29.09
Fan Speed1500 RPMN/A
Noise Level≤25.6 dB(A)N/A
Socket SupportIntel & AMDIntel & AMD

Dimension comparison

Thermalright Peerless Assassin 120 CPU Air CoolerGamma A40 ARGB BK CPU Cooler

Overview of the Thermalright Peerless Assassin 120 and Gamma A40 ARGB BK

The Thermalright Peerless Assassin 120 and the Gamma A40 ARGB BK offer distinct cooling solutions, but they cater to different needs and budgets. The Peerless Assassin 120 is priced at C$51.39, while the Gamma A40 comes in at a more affordable C$29.09. This price difference reflects variations in design, performance capabilities, and features.

The Peerless Assassin 120 boasts a robust cooling capacity with a TDP of 245W, making it ideal for high-performance setups. In contrast, the Gamma A40, while compact and efficient, supports a lower TDP of 200W, positioning it as a solid choice for mid-range builds. Thus, your choice should align with your specific cooling requirements and budget.

Cooling Performance Comparison

When it comes to cooling performance, the Thermalright Peerless Assassin 120 clearly stands out with its superior TDP rating. Featuring a maximum thermal design power of 245W, it utilises advanced technology, including 6 heat pipes employing the AGHP technique to enhance heat dissipation. This allows for effective cooling in demanding environments.

On the other hand, the Gamma A40 ARGB BK is designed for cooling efficiency with a TDP of up to 200W, which is adequate for most mainstream CPUs. Its direct-touch heatpipe design increases the contact area for better heat transfer. While both coolers are effective, the Peerless Assassin 120 is better suited for users looking for maximum performance under heavy loads.

Design and Aesthetics

In terms of design, the Thermalright Peerless Assassin 120 features a twin-tower design with a stylish white finish and ARGB lighting effects, making it visually appealing while ensuring high cooling performance. Its dimensions are 125mm (L) x 135mm (W) x 157mm (H), which allows for substantial airflow.

Conversely, the Gamma A40 ARGB BK boasts a more compact height of 133mm, making it a suitable option for smaller cases. Its design includes a classic round dot matrix top cover and a 100mm high-performance fan. While the Peerless Assassin 120 leans towards a more elaborate aesthetic, the Gamma A40 prioritises space efficiency, catering to users with limited case room.

Installation and Compatibility

The installation process is critical for any CPU cooler, and both the Thermalright Peerless Assassin 120 and the Gamma A40 ARGB BK offer user-friendly features. The Peerless Assassin 120 includes metal fasteners compatible with a variety of Intel and AMD sockets, ensuring a secure fit across numerous platforms.

The Gamma A40 ARGB BK also supports mainstream Intel and AMD platforms, making it versatile for most builds. However, its simpler design and compact size may provide a quicker installation experience for users with less technical expertise. Overall, both coolers facilitate easy installation, but the Peerless Assassin 120 offers broader compatibility with high-end platforms.

Noise Levels and Fan Performance

Noise levels can significantly affect user experience, especially in quiet environments. The Thermalright Peerless Assassin 120 operates at a noise level of ≤25.6dB(A), which is relatively quiet for a cooler with such a high cooling capacity. Its two PWM fans, operating at speeds of up to 1500 RPM, ensure efficient airflow while minimizing noise disruption.

The Gamma A40 ARGB BK, equipped with a single 100mm fan, also aims for quieter performance, although specific noise level ratings are not provided. The cooling efficiency of its fan outperforms many comparable compact coolers, but it may not match the sophisticated dual-fan setup of the Peerless Assassin. Therefore, those valuing quiet operation alongside performance may lean towards the Peerless Assassin 120.

Price Considerations

Price is a decisive factor for many consumers, and in this comparison, the Thermalright Peerless Assassin 120 is priced at C$51.39, while the Gamma A40 ARGB BK is significantly lower at C$29.09. This nearly C$22 difference reflects the performance capabilities and features of each cooler.

While the Peerless Assassin 120 offers superior cooling performance and aesthetics, the Gamma A40 ARGB BK provides excellent value for users on a budget or those with less demanding cooling requirements. Both coolers are well-priced within their respective performance brackets, making them appealing options for different segments of the market.

Brand Reputation and User Experience

The reputation of a brand can influence purchasing decisions, and both Thermalright and Ocypus have established themselves in the CPU cooler market. Thermalright, known for its high-performance products, often receives praise for quality and reliability in cooling solutions.

Ocypus, while perhaps less renowned, still offers respectable products like the Gamma A40 ARGB BK that focus on user-friendly features and affordability. User experiences typically reflect satisfaction with both brands, but those seeking advanced cooling and higher performance may gravitate towards the Thermalright Peerless Assassin 120.

Which should you buy?

Choosing between the Thermalright Peerless Assassin 120 and the Gamma A40 ARGB BK ultimately depends on your specific needs and budget. If you require exceptional cooling performance and aesthetic appeal, the Peerless Assassin 120 is the clear winner, albeit at a higher price point of C$51.39. However, if you're looking for a compact and budget-friendly option that still delivers solid cooling capabilities, the Gamma A40 ARGB BK at C$29.09 is an excellent choice.

Consider your system requirements, case space, and personal preferences before making a decision. Each cooler has its strengths, making them suitable for different user scenarios.

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Thermalright Peerless Assassin 120 CPU Air Cooler vs Gamma A40 ARGB BK CPU Cooler | versusfinder