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Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler vs Thermalright Assassin X 120R SE V2 CPU Air Cooler

Updated August 2026The Thermalright Peerless Assassin 120 SE ARGB offers superior cooling performance and aesthetic features, while the Assassin X 120R SE V2 provides great value for budget-conscious users.

The Thermalright Peerless Assassin 120 SE ARGB offers superior cooling performance and aesthetic features, while the Assassin X 120R SE V2 provides great value for budget-conscious users.

Why Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler is better

cooling performance

Higher TDP rating of 120 to 245W

aesthetic features

Includes vibrant ARGB lighting

build quality

Constructed with full electroplating reflow welding process

Why Thermalright Assassin X 120R SE V2 CPU Air Cooler is better

price

Lower price at C$23.59

size

Slightly shorter height of 148mm

service life

Claims up to 20,000 hours of service life

Overall score

Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler
85
Thermalright Assassin X 120R SE V2 CPU Air Cooler
70

Specifications

SpecThermalright Peerless Assassin 120 SE ARGB CPU Air CoolerThermalright Assassin X 120R SE V2 CPU Air Cooler
PriceC$46.90C$23.59
Airflow66.17 CFM66.17 CFM
Noise Level25.6 dB(A)25.6 dB(A)
Heat Pipes64
Fan Speed1500 RPM1550 RPM

Dimension comparison

Thermalright Peerless Assassin 120 SE ARGB CPU Air CoolerThermalright Assassin X 120R SE V2 CPU Air Cooler

Overview of Thermalright Peerless Assassin 120 SE ARGB and Thermalright Assassin X 120R SE V2

The Thermalright Peerless Assassin 120 SE ARGB is priced at C$46.90, whereas the Thermalright Assassin X 120R SE V2 is significantly more affordable at C$23.59. Despite the price difference, both products are designed to deliver effective CPU cooling while maintaining a level of aesthetic appeal. Thermalright has a solid reputation, having developed cooling solutions for over 20 years, making both products credible choices for PC enthusiasts.

Cooling Performance

The Peerless Assassin 120 SE ARGB boasts an impressive thermal design power (TDP) rating of 120 to 245W, supported by six heat pipes and a dual-tower design that enhances its cooling capacity. In comparison, the Assassin X 120R SE V2, while slightly less powerful, still manages a respectable TDP handling capability due to its four heat pipes and efficient airflow. Both coolers are equipped with PWM fans that provide airflow of 66.17 CFM at a noise level of 25.6 dB(A), ensuring that users can enjoy a quiet computing experience without sacrificing performance.

Design and Aesthetics

The Peerless Assassin 120 SE ARGB features vibrant ARGB lighting effects, making it a visually striking addition to any gaming rig. Its dimensions of 125(L)x135(W)x155(H)mm allow it to fit well inside most cases. Meanwhile, the Assassin X 120R SE V2, while slightly shorter at 148mm in height, also provides a self-luminous fan that adds a subtle glow. Both coolers are designed with practicality in mind, ensuring compatibility with various CPU sockets without obstructing other components.

Noise Levels

Both the Peerless Assassin 120 SE ARGB and the Assassin X 120R SE V2 operate at a low noise level of 25.6 dB(A), making them suitable for users who prefer a quiet environment. This performance is particularly important for gamers or professionals who need to focus without distractions. The use of PWM fans in both models ensures that they can adjust their speed according to the CPU temperature, minimizing noise during less demanding tasks while providing maximum cooling when needed.

Installation and Compatibility

The Peerless Assassin 120 SE ARGB supports a wide range of CPU sockets, including Intel’s 115X, 1200, 1700, and AMD’s AM4. This flexibility makes it a versatile choice for users with different setups. The Assassin X 120R SE V2 also accommodates a similar array of sockets, including Intel’s LGA1150/1151/1155/1156/1200/1700 and AMD’s AM4/AM5. Both products provide mounting hardware for easy installation, and users can refer to installation videos or manuals for guidance.

Build Quality and Durability

The Peerless Assassin 120 SE ARGB is constructed with a full electroplating reflow welding process, ensuring durability and performance longevity. Its weight of 0.97 kg (2.1 lbs) reflects a sturdy build that can withstand the rigours of regular usage. The Assassin X 120R SE V2, while lighter at an unspecified weight, claims an impressive service life of up to 20,000 hours thanks to its S-FDB bearings. Both coolers are made from quality materials designed to provide reliable cooling over time.

Brand Reputation and Customer Trust

Thermalright has built a reputable brand over its 20 years in the industry, known for producing reliable and high-performance cooling solutions. Both the Peerless Assassin 120 SE ARGB and the Assassin X 120R SE V2 are backed by this legacy, providing users with the confidence that they are purchasing from a trusted manufacturer. This brand trust plays a significant role in the purchasing decision for many consumers, particularly in the competitive market of CPU coolers.

Which should you buy?

When deciding between the Thermalright Peerless Assassin 120 SE ARGB and the Assassin X 120R SE V2, your choice will largely depend on your specific needs and budget. If you are looking for superior cooling performance and aesthetic features like ARGB lighting, the Peerless Assassin 120 SE ARGB at C$46.90 is the better option. However, if you are on a tighter budget and still want effective cooling, the Assassin X 120R SE V2, priced at C$23.59, offers great value with decent performance and build quality. Ultimately, both coolers present solid choices, but your priorities will guide the best fit for your setup.

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Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler vs Thermalright Assassin X 120R SE V2 CPU Air Cooler | versusfinder