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MONTECH NX600 Dual-Tower CPU Air Cooler with 6 vs Thermalright Peerless Assassin 120 SE V3 CPU Air

Updated August 2026 — MONTECH NX600 Dual-Tower CPU Air Cooler with 6 leads on cooling performa and noise level.

The MONTECH NX600 offers a better price-to-performance ratio and quieter operation, while the Thermalright Peerless Assassin 120 SE V3 excels in cooling performance. Choose based on your priorities.

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

Price

MONTECH NX600 is $27.96, cheaper than Thermalright.

Noise

MONTECH NX600 operates whisper-quiet.

Design

MONTECH NX600 has a sleek, unified look.

Why Thermalright Peerless Assassin 120 SE V3 CPU Air is better

Cooling

Thermalright can reach higher fan speeds.

Build Quality

Thermalright uses aluminium heatsink.

Fan Performance

Thermalright has dual PWM fans with higher RPM.

Overall score

MONTECH NX600 Dual-Tower CPU Air Cooler with 6
85
Thermalright Peerless Assassin 120 SE V3 CPU Air
78

Specifications

SpecMONTECH NX600 Dual-Tower CPU Air Cooler with 6Thermalright Peerless Assassin 120 SE V3 CPU Air
Cooling TypeAirAir
Socket SupportAll Intel & AMDIntel & AMD
Max RPM18002000
Noise Level≤25 dB≤29.8 dB
MaterialCopper & AluminiumAluminium

Dimension comparison

MONTECH NX600 Dual-Tower CPU Air Cooler with 6Thermalright Peerless Assassin 120 SE V3 CPU Air

Design and Aesthetics

The MONTECH NX600 features a sleek top cover that gives it a clean, unified look, while the Thermalright Peerless Assassin 120 SE V3 boasts a blackened anodic matte top sheet. The MONTECH cooler's design not only emphasizes style but also functionality with its dual-tower structure and finely tuned fin stacks. The dual performance fans of the NX600, combined with its elegant appearance, make it suitable for high-end builds. Meanwhile, the Thermalright model incorporates an aluminium heatsink cover with symmetrical fins, adding to its robust design. Both coolers aim to marry aesthetics with performance, but the MONTECH's focus on a stealthy look may appeal more to gamers and creators.

Cooling Performance

The MONTECH NX600 is engineered for maximum cooling efficiency through its dual-tower design with six heat pipes, which ensures massive heat dissipation surface. Its E28 PWM performance fans are designed for whisper-quiet operation while maintaining high airflow. On the other hand, the Thermalright Peerless Assassin 120 SE V3 also features a dual-tower and dual-fan structure, but its fans can reach speeds of up to 2000 RPM, potentially offering superior cooling performance in demanding situations. Both coolers emphasize effective heat dissipation, but the higher fan speed of the Thermalright may provide an edge in extreme temperature scenarios.

Noise Levels

The MONTECH NX600 is designed for whisper-quiet operation, making it an excellent choice for users who prioritize a low-noise environment. The E28 PWM fans are specifically tuned to balance airflow and noise. In contrast, the Thermalright Peerless Assassin 120 SE V3 operates at a maximum noise level of 29.8 dB(A) at full speed. While this is relatively quiet considering its performance capabilities, it may be slightly noisier than the MONTECH model under heavy loads. Thus, if noise levels are a critical factor in your decision, the MONTECH NX600 may be the preferable option.

Installation and Compatibility

Both the MONTECH NX600 and the Thermalright Peerless Assassin 120 SE V3 offer effortless compatibility with a wide range of CPU sockets. The MONTECH cooler supports all major Intel and AMD sockets, making upgrades simple for users. Similarly, the Thermalright cooler is compatible with both Intel LGA and AMD AM4/AM5 platforms, ensuring broad usability as well. However, the Peerless Assassin does require the use of the motherboard's original backplate for AMD installations, which might complicate the installation slightly. Therefore, while both coolers are user-friendly, the MONTECH's compatibility might be slightly easier to navigate.

Price Comparison

The MONTECH NX600 is priced at $27.96, while the Thermalright Peerless Assassin 120 SE V3 is priced at $35.90. This makes the MONTECH cooler about 22% cheaper than its Thermalright counterpart. If budget is a significant consideration, the MONTECH NX600 offers a compelling price-to-performance ratio without sacrificing essential features. On the other hand, the higher price of the Thermalright model may be justified for users seeking top-tier cooling performance in extreme conditions.

Brand Reputation

Montech and Thermalright both have solid reputations in the cooling market. Montech is known for delivering quality products that balance performance and aesthetics, particularly appealing to gamers and system builders. Thermalright, on the other hand, has established itself as a brand synonymous with high-performance cooling solutions, often favored by enthusiasts. The choice between these brands may come down to personal preference and specific needs, but both are reliable options in the CPU cooler market.

User Experience and Reviews

While specific user reviews are not provided, the features of the MONTECH NX600 indicate that it is designed for users who prioritize aesthetics along with solid performance in a quieter operation. The Thermalright Peerless Assassin 120 SE V3, with its higher RPM and robust build, likely appeals to users who demand maximum cooling under heavy loads. Potential buyers should consider their individual performance needs and preferences when evaluating user experiences with these products.

Which should you buy?

Ultimately, the decision between the MONTECH NX600 and the Thermalright Peerless Assassin 120 SE V3 hinges on your specific needs and preferences. If you are looking for a cooler that is more budget-friendly at $27.96 and offers a sleek design with whisper-quiet operation, the MONTECH NX600 is a great choice. Conversely, if maximum cooling performance is your priority and you don’t mind spending an additional $7.94 for a cooler that operates at higher fan speeds, the Thermalright Peerless Assassin 120 SE V3 could be the better option. Consider your cooling requirements, noise tolerance, and budget to make the best choice.