ARCTIC Freezer 36 A-RGB - Single-Tower CPU Cooler vs Thermalright Peerless Assassin 120 SE V3 CPU Air
Updated August 2026 — Thermalright Peerless Assassin 120 SE V3 CPU Air leads on fan efficiency and aesthetics.
The ARCTIC Freezer 36 A-RGB excels in aesthetics and ease of installation, while the Thermalright Peerless Assassin offers superior cooling performance. Choose based on your priorities.
Why ARCTIC Freezer 36 A-RGB - Single-Tower CPU Cooler is better
Aesthetics
ARCTIC features RGB lighting.
Installation
ARCTIC has an innovative click installation system.
Noise Levels
ARCTIC's fan technology minimizes noise.
Why Thermalright Peerless Assassin 120 SE V3 CPU Air is better
Cooling Performance
Thermalright has six heat pipes.
Airflow
Thermalright's dual fans provide larger air volume.
Compatibility
Thermalright supports more CPU sockets.
Overall score
Specifications
| Spec | ARCTIC Freezer 36 A-RGB - Single-Tower CPU Cooler | Thermalright Peerless Assassin 120 SE V3 CPU Air |
|---|---|---|
| Heat Pipes | 4 | 6 |
| Fan Type | Pressure-optimised | PWM |
| Noise Level | ≤29.8 dB(A) | ≤29.8 dB(A) |
| ARGB Lighting | Yes | No |
| Mounting System | Click system | Standard |
Dimension comparison
Price Comparison
The ARCTIC Freezer 36 A-RGB is priced at $35.80, while the Thermalright Peerless Assassin 120 SE V3 is slightly more expensive at $35.90. This makes the ARCTIC Freezer about 0.28% cheaper than its competitor. Although the price difference is minimal, every cent counts when budgeting for a CPU cooler. Both products offer competitive pricing within the CPU cooler market, making them attractive options for consumers looking for efficient cooling solutions without breaking the bank.
Cooling Performance
When it comes to cooling performance, the ARCTIC Freezer 36 A-RGB stands out with its innovative design featuring four heat pipes and two pressure-optimised 120 mm fans. This setup allows for effective heat transfer and dissipation, making it suitable for high-end CPUs. The Thermalright Peerless Assassin 120 SE V3, on the other hand, boasts six heat pipes and a double tower design, also equipped with dual PWM fans that can reach speeds of up to 2000 RPM. This configuration promises excellent heat dissipation efficiency, making both coolers capable of handling demanding tasks, but the Thermalright may have an edge due to its additional heat pipes.
Fan Technology
The ARCTIC Freezer employs pressure-optimised fans that operate between 200–2000 RPM, focusing on enhanced airflow and reduced noise levels. Its unique fan mounting system facilitates easy installation and replacement. The Thermalright Peerless Assassin features dual PWM fans that also max out at 2000 RPM but brings a larger air volume due to its double tower design. The PWM technology in both coolers allows for automatic speed adjustments based on CPU temperature, providing efficient thermal management. While both coolers leverage advanced fan technology, the Thermalright's dual fans may offer superior performance due to their combined airflow capabilities.
Installation Process
In terms of installation, the ARCTIC Freezer 36 A-RGB highlights an innovative click installation system, making it user-friendly for both enthusiasts and novice builders. It is compatible with most 120 mm fans, allowing for further customization. The Thermalright Peerless Assassin also comes with user-friendly installation instructions and mounting accessories for dual platforms, including AMD and Intel sockets. However, it requires the original backplate of the motherboard for AMD installations. Both coolers emphasize ease of installation, but the ARCTIC's unique mounting system may provide a smoother experience.
Aesthetic Appeal
Aesthetics play a significant role in many PC builds, and the ARCTIC Freezer 36 A-RGB excels with its digital ARGB lighting, featuring 12 LEDs that ensure even and rich illumination. The sleek design of the cooler enhances the visual appeal of any build. The Thermalright Peerless Assassin, while functional and stylish with its anodized matte finish, does not emphasize RGB lighting, which may be a drawback for users looking to showcase their builds. For those prioritizing aesthetics, the ARCTIC Freezer's RGB features will likely be more appealing.
Compatibility
Both coolers boast broad compatibility, supporting various Intel and AMD sockets. The ARCTIC Freezer is compatible with Intel LGA1851 and LGA1700, while the Thermalright Peerless Assassin supports a wider range of sockets, including AM4/AM5 and multiple Intel configurations. This wide compatibility makes the Thermalright a versatile choice for users with different CPU setups. However, it’s essential to note that the Thermalright requires the motherboard's original backplate for AMD installations, which might complicate setup for some users compared to the ARCTIC Freezer's more straightforward approach.
Noise Levels
Noise levels are critical when considering CPU coolers, especially in gaming or professional workstation environments. The ARCTIC Freezer operates with a fluid dynamic bearing that minimizes noise while maintaining performance. Thermalright's Peerless Assassin has an operating noise level of ≤29.8 dB(A), which is relatively quiet for a high-performance cooler. Both products are designed to be efficient and quiet, but the ARCTIC's fan technology may give it a slight advantage in reducing operational noise.
Which should you buy?
Choosing between the ARCTIC Freezer 36 A-RGB and the Thermalright Peerless Assassin 120 SE V3 ultimately depends on your specific needs. If aesthetics and ease of installation are your top priorities, the ARCTIC Freezer's RGB lighting and innovative mounting system make it an excellent choice. However, if cooling performance and broad compatibility with various CPU sockets are more critical, the Thermalright's additional heat pipes and dual fans may offer the advantage you need. Both coolers are competitively priced, so it comes down to the features that matter most for your build.

