Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler vs Thermalright Assassin X 120R SE V2 CPU Air Cooler
Updated August 2026 — 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.
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
Specifications
| Spec | Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler | Thermalright Assassin X 120R SE V2 CPU Air Cooler |
|---|---|---|
| Price | C$46.90 | C$23.59 |
| Airflow | 66.17 CFM | 66.17 CFM |
| Noise Level | 25.6 dB(A) | 25.6 dB(A) |
| Heat Pipes | 6 | 4 |
| Fan Speed | 1500 RPM | 1550 RPM |
Dimension comparison
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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