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MONTECH NX600 Dual-Tower CPU Air Cooler with 6 vs Thermalright Peerless Assassin 120 SE CPU Cooler,

Updated August 2026 — MONTECH NX600 Dual-Tower CPU Air Cooler with 6 wins on compatibility, Thermalright Peerless Assassin 120 SE CPU Cooler, wins on cooling power and build quality.

The MONTECH NX600 offers excellent performance at a lower price, while the Thermalright Peerless Assassin excels in cooling efficiency and brand reputation.

Why MONTECH NX600 Dual-Tower CPU Air Cooler with 6 is better

Price

MONTECH NX600 is significantly cheaper.

Noise

Designed for whisper-quiet operation.

Aesthetics

Sleek design with concealed heat pipes.

Why Thermalright Peerless Assassin 120 SE CPU Cooler, is better

Cooling

AGHP technology enhances cooling performance.

Fan Speed

Higher maximum fan speed of 1550 RPM.

Brand Trust

Thermalright has over 20 years of experience.

Overall score

MONTECH NX600 Dual-Tower CPU Air Cooler with 6
75
Thermalright Peerless Assassin 120 SE CPU Cooler,
82

Specifications

SpecMONTECH NX600 Dual-Tower CPU Air Cooler with 6Thermalright Peerless Assassin 120 SE CPU Cooler,
Price$27.96$49.99
Socket SupportAll Intel & AMDIntel & AMD
Fan TypePWMPWM
Noise LevelWhisper-quiet<25.6 dB(A)
Cooling TechDual-TowerAGHP

Dimension comparison

MONTECH NX600 Dual-Tower CPU Air Cooler with 6Thermalright Peerless Assassin 120 SE CPU Cooler,

Overview of the MONTECH NX600 and Thermalright Peerless Assassin 120 SE

The MONTECH NX600 is priced at $27.96, while the Thermalright Peerless Assassin 120 SE comes in at $49.99, making the MONTECH about 44% cheaper. Both are designed for high-performance CPU cooling, but they cater to slightly different needs and preferences. The NX600 features a dual-tower design with six heat pipes and is equipped with MONTECH's E28 PWM fans, promoting efficient heat dissipation and a quieter operation. On the other hand, the Peerless Assassin boasts AGHP technology with six heat pipes and dual 120mm fans, aiming for robust cooling performance and compatibility with a range of AMD and Intel sockets.

Design and Aesthetics

In terms of design, the MONTECH NX600 excels with its sleek top cover that conceals the heat pipe ends and fin stacks, offering a clean and unified look suitable for high-end builds. The dual-tower structure provides a visual impact that is both functional and stylish. Conversely, the Thermalright Peerless Assassin, while also visually appealing, emphasizes practicality with its functional design that is focused on maximizing cooling potential rather than aesthetics. The dimensions of the Peerless Assassin, at 125mm x 135mm x 155mm, create a robust presence, but it may require careful consideration of case compatibility.

Cooling Performance

When it comes to cooling performance, both coolers are equipped with impressive features. The MONTECH NX600 utilizes two finely tuned fin stacks and dual performance fans that ensure massive heat dissipation and maximum airflow efficiency. The soldered copper base guarantees rapid heat transfer across both towers, which is vital for maintaining stable CPU temperatures during intense workloads. Meanwhile, the Thermalright Peerless Assassin leverages its AGHP technology, which helps to enhance cooling effectiveness by solving the inverse gravity effect. With a maximum fan speed of 1550 RPM and an airflow capacity of 66.17 CFM, it is designed to provide extreme cooling performance.

Noise Levels

Noise levels are a significant consideration for many PC builders, especially those who prioritize quiet operation. The MONTECH NX600 is designed for whisper-quiet performance, ensuring that users can enjoy a silent computing experience without compromising on cooling efficiency. The specific noise level isn’t mentioned, but the emphasis on quiet operation is a notable feature. In contrast, the Thermalright Peerless Assassin has a listed noise level of less than 25.6 dB(A). While this is quite silent, the MONTECH’s focus on noise reduction may give it an edge for users who are particularly sensitive to sound.

Compatibility

Compatibility is essential when selecting a CPU cooler, and both coolers offer extensive support for various sockets. The MONTECH NX600 is compatible with all major Intel and AMD sockets, including Intel LGA115X, 1200, 1700, and AMD AM4 and AM5. This broad compatibility simplifies the upgrade process for users. Similarly, the Thermalright Peerless Assassin supports a wide range of Intel and AMD sockets, including LGA1700 and AM4/AM5, making it versatile for different builds. However, the installation for the Peerless Assassin may require additional attention to ensure proper mounting, particularly on AMD platforms.

Brand Reputation and Support

Brand reputation can play a crucial role in the consumer's choice. MONTECH has been gaining traction with its focus on high-performance cooling solutions and stylish designs. The NX600 is marketed towards gamers and creators alike, suggesting a commitment to quality and performance. On the other hand, Thermalright has over 20 years of experience in the industry and is recognized for its innovation in cooling technology. Their long-standing presence and focus on research and development lend credibility to the Peerless Assassin as a reliable choice for dedicated enthusiasts looking for performance.

Price Comparison

The MONTECH NX600 is priced at $27.96, while the Thermalright Peerless Assassin 120 SE is listed at $49.99. The difference in price is about $22, making the MONTECH approximately 44% cheaper. This significant price gap may influence budget-conscious consumers who want effective cooling without breaking the bank. However, the thermal performance and brand reliability of the Thermalright may justify the higher price for those who prioritize cooling efficiency and brand trust.

Which should you buy?

Ultimately, the choice between the MONTECH NX600 and the Thermalright Peerless Assassin 120 SE depends on individual needs and preferences. If you are looking for an affordable cooling solution that offers excellent performance with a focus on low noise, the MONTECH NX600 is a compelling option at $27.96. However, if you prioritize maximum cooling performance and brand reputation, the Thermalright Peerless Assassin at $49.99 could be worth the investment. Consider your specific requirements, including budget, aesthetics, and cooling needs, before making a decision.