Thermalright Peerless Assassin 120 SE CPU Air Cooler vs ARCTIC Freezer 36
Updated August 2026 — The Thermalright Peerless Assassin 120 SE offers superior cooling performance and aesthetics, while the ARCTIC Freezer 36 is a more budget-friendly option. Choose based on your specific needs.
The Thermalright Peerless Assassin 120 SE offers superior cooling performance and aesthetics, while the ARCTIC Freezer 36 is a more budget-friendly option. Choose based on your specific needs.
Why Thermalright Peerless Assassin 120 SE CPU Air Cooler is better
Cooling Performance
Dual PWM fans provide higher airflow.
Aesthetics
Striking double tower design.
Noise Levels
Quieter operation at 25.6 dB(A).
Why ARCTIC Freezer 36 is better
Price
More affordable at £22.99.
Installation Ease
Innovative Click-installation system.
Compact Design
Side-flow heat sink optimizes case ventilation.
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 SE CPU Air Cooler | ARCTIC Freezer 36 |
|---|---|---|
| Airflow | 66.17 CFM | Not specified |
| Noise Level | 25.6 dB(A) | Not specified |
| Socket Support | Intel & AMD | Intel & AMD |
| Fan Type | Dual PWM | Single PWM |
| Mounting System | Metal fasteners | Click-installation |
Dimension comparison
Brand Overview
Thermalright and ARCTIC are both well-established brands in the cooling solutions market. Thermalright has over 20 years of experience and is known for its high-quality computer accessories, while ARCTIC focuses on innovative cooling technologies. Both brands cater to enthusiasts looking for reliable and efficient CPU cooling solutions.
The Thermalright Peerless Assassin 120 SE is priced at £26.90, reflecting its premium build and features. In contrast, the ARCTIC Freezer 36 is slightly more affordable at £22.99, making it an attractive option for those seeking performance without breaking the bank.
Cooling Performance
When it comes to cooling performance, the Thermalright Peerless Assassin 120 SE is designed with double PWM fans, which can generate an airflow of 66.17 CFM at a maximum noise level of 25.6 dB(A). This dual-fan setup aims to provide robust cooling, especially under heavy loads.
On the other hand, the ARCTIC Freezer 36 employs a single-tower design with four offset heat pipes, optimising heat transfer. The pressure-optimised 120 mm fans enhance cooling efficiency, though specific airflow numbers are not provided. While the Freezer 36 may not match the dual-fan performance of the Peerless Assassin, its innovative design allows it to effectively dissipate heat in a compact case.
Installation and Compatibility
The installation processes for both coolers cater to a broad range of CPU sockets. The Thermalright Peerless Assassin 120 SE supports Intel sockets including LGA1150, LGA1200, and LGA1700, as well as AMD AM4 and AM5. It comes equipped with metal fasteners for easier installation.
Meanwhile, the ARCTIC Freezer 36 requires users to have the original AMD mounting screws that come with the motherboard, which could pose a challenge for some users. However, it does feature an innovative Click-installation system, making it easier to install or replace fans. This user-friendly feature could be a deciding factor for those who prioritise ease of installation.
Design and Aesthetics
In terms of design, the Thermalright Peerless Assassin 120 SE features a double tower cooling solution which not only enhances its cooling efficiency but also adds a striking visual appeal. Its dimensions of 125(L)x135(W)x155(H)mm allow it to fit into a variety of cases while leaving room for memory chips.
Conversely, the ARCTIC Freezer 36 has a side-flow heat sink design that optimises ventilation within the case. This design may not be as visually striking as the Thermalright but is effective in its functionality. The choice between these two designs may come down to personal aesthetic preference and case compatibility.
Noise Levels
Noise levels can significantly impact user experience, especially in quieter environments. The Thermalright Peerless Assassin 120 SE operates at a maximum noise level of 25.6 dB(A), which is relatively quiet for a cooler of its size and performance.
On the other hand, while specific noise levels for the ARCTIC Freezer 36 are not provided, the focus on pressure-optimised fans suggests an aim for lower noise operation. However, without explicit figures, it’s challenging to directly compare their acoustic performance. Users sensitive to noise may need to consider this aspect carefully.
Price Point
The Thermalright Peerless Assassin 120 SE is offered at £26.90, making it a higher-end option in this comparison. This price reflects its advanced features and dual-fan setup, which might justify the cost for users seeking top-tier performance.
In contrast, the ARCTIC Freezer 36, priced at £22.99, presents a more budget-friendly alternative. While it lacks some of the advanced features of the Peerless Assassin, it still provides solid performance for its price range. Thus, price-conscious consumers may find the Freezer 36 appealing without sacrificing too much in terms of cooling efficiency.
User Feedback and Reputation
Both Thermalright and ARCTIC have garnered positive feedback from users over the years. The Thermalright Peerless Assassin 120 SE is praised for its excellent cooling performance, especially in overclocking scenarios, while the ARCTIC Freezer 36 is noted for its efficient heat dissipation in compact builds.
Customer reviews often highlight the ease of installation and compatibility of the coolers. However, potential buyers may want to consider the installation requirements of the Freezer 36, particularly the need for original mounting screws. This nuance can impact user satisfaction depending on individual setups.
Which should you buy?
Choosing between the Thermalright Peerless Assassin 120 SE and the ARCTIC Freezer 36 ultimately comes down to your specific needs and preferences. If you prioritise advanced cooling performance and aesthetics, the Thermalright Peerless Assassin 120 SE at £26.90 may be the better option. However, if you're looking for a more budget-friendly solution without sacrificing too much cooling efficiency, the ARCTIC Freezer 36 at £22.99 offers solid performance and user-friendly installation. Consider your setup and requirements carefully before making a decision.
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