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MONTECH NX600 Dual-Tower CPU Air Cooler with 6 vs Thermalright Assassin X120 Refined SE CPU Air

Updated July 2026 — MONTECH NX600 Dual-Tower CPU Air Cooler with 6 leads on width and height.

The MONTECH NX600 offers superior cooling performance and aesthetics, while the Thermalright Assassin X120 is a budget-friendly option. Choose based on your cooling needs and price sensitivity.

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

Cooling Performance

NX600 has dual towers and six heat pipes.

Design

NX600 features a sleek top finish.

Noise Levels

NX600 operates quieter with dual fans.

Why Thermalright Assassin X120 Refined SE CPU Air is better

Price

Assassin X120 is significantly cheaper.

Weight

Assassin X120 is lighter at 0.645kg.

Fan Speed

Assassin X120 has a maximum fan speed of 1550 RPM.

Overall score

MONTECH NX600 Dual-Tower CPU Air Cooler with 6
85
Thermalright Assassin X120 Refined SE CPU Air
65

Specifications

SpecMONTECH NX600 Dual-Tower CPU Air Cooler with 6Thermalright Assassin X120 Refined SE CPU Air
Cooling TypeAirAir
Socket CompatibilityAll majorAll major
Max AirflowN/A66.17 CFM
Noise LevelQuiet25.6 dB(A)
Fan Count21

Dimension comparison

MONTECH NX600 Dual-Tower CPU Air Cooler with 6Thermalright Assassin X120 Refined SE CPU Air

Design and Aesthetics

When it comes to design, the MONTECH NX600 Dual-Tower CPU Air Cooler stands out with its sleek top finish that conceals heat pipe ends and fin stacks, giving it a polished look suitable for high-end builds. In contrast, the Thermalright Assassin X120 Refined SE features a more utilitarian design with an aluminum heatsink cover and a focus on functional performance. While both coolers aim to provide effective cooling, the NX600's aesthetic appeal may attract users looking for a visually striking component in their setups.

Cooling Performance

The MONTECH NX600 is engineered for maximum cooling efficiency, boasting two finely tuned fin stacks with 52 fins each and six heat pipes. This design maximizes airflow and ensures superior heat dissipation. On the other hand, the Thermalright Assassin X120 utilizes four heat pipes and a single TL-C12C PWM fan, which provides up to 66.17 CFM airflow with a noise level of 25.6 dB(A). While the Assassin X120 is effective, the NX600's dual-tower configuration and additional heat pipes suggest a more robust cooling capability, making it a better choice for high-performance systems.

Fan Technology

The MONTECH NX600 is equipped with two E28 PWM performance fans designed for whisper-quiet operation, ensuring that it operates efficiently without drawing attention. In comparison, the Thermalright Assassin X120 comes with a single TL-C12C PWM fan that operates at a maximum speed of 1550 RPM. While both fans are designed to provide efficient cooling, the dual-fan setup in the NX600 may lead to improved cooling performance and lower temperatures under load, especially for overclocked CPUs.

Compatibility

Both the MONTECH NX600 and the Thermalright Assassin X120 support a wide range of CPU sockets, including Intel's LGA115X series and AMD's AM4/AM5. The NX600's compatibility with all major sockets ensures easy upgrades for users without worrying about fitting issues. The Assassin X120 also offers versatile compatibility, complete with metal fasteners for Intel and AMD platforms. While both coolers are designed for broad compatibility, the NX600's emphasis on effortless installation may appeal to those who prioritize convenience.

Noise Levels

In terms of noise, the MONTECH NX600 is designed for quiet operation with its dual E28 fans, making it suitable for users who prefer a silent computing environment. The Thermalright Assassin X120, while efficient, operates at a slightly higher noise level of 25.6 dB(A) under maximum load. For users sensitive to noise, the NX600's focus on whisper-quiet performance may be a significant advantage, particularly in gaming or content creation scenarios where silence is valued.

Price Comparison

The MONTECH NX600 is priced at $27.96, while the Thermalright Assassin X120 is more budget-friendly at $17.90. This makes the Assassin X120 about 36% cheaper than the NX600. However, it's essential to consider what each product offers for the price. The NX600 provides advanced cooling technology and design features that may justify its higher cost for users with demanding cooling needs, while the Assassin X120 serves as an excellent choice for those looking for solid performance at a lower price point.

Brand Reputation and Support

Montech and Thermalright both have established themselves in the CPU cooler market. Montech is known for innovative designs and effective cooling solutions, while Thermalright has over 20 years of development experience and a solid reputation among gamers and PC builders. Users may find that both brands offer reliable products, but Montech's focus on modern aesthetics and performance might appeal more to a younger audience, whereas Thermalright caters to those who prioritize functionality and long-term reliability.

Which should you buy?

The decision between the MONTECH NX600 Dual-Tower CPU Air Cooler and the Thermalright Assassin X120 Refined SE ultimately hinges on your specific needs and preferences. If you require maximum cooling performance, a sleek design, and whisper-quiet operation, the NX600 is worth the investment at $27.96. However, if you're looking for a budget-friendly yet effective cooler that still offers solid performance, the Assassin X120 at $17.90 is an attractive option. Evaluate your priorities, whether it's aesthetics, performance, or price, to make the best choice for your system.