Thermalright Phantom Spirit 120 CPU Cooler vs Thermalright Assassin King 120 SE ARGB CPU Air Cooler
Updated August 2026 — The Thermalright Phantom Spirit 120 offers superior cooling performance and features, while the Assassin King 120 SE ARGB is a more budget-friendly and quieter option.
The Thermalright Phantom Spirit 120 offers superior cooling performance and features, while the Assassin King 120 SE ARGB is a more budget-friendly and quieter option.
Why Thermalright Phantom Spirit 120 CPU Cooler is better
Cooling Performance
Phantom Spirit has a larger size for better heat dissipation.
Advanced Features
Phantom Spirit includes S-FDB bearings for longevity.
Higher TDP Rating
Phantom Spirit can handle more demanding CPU loads.
Why Thermalright Assassin King 120 SE ARGB CPU Air Cooler is better
Price
Assassin King is significantly cheaper.
Noise Level
Assassin King operates at a quieter ≤25.6 dB(A).
Aesthetic Appeal
Assassin King features colorful ARGB lighting.
Overall score
Specifications
| Spec | Thermalright Phantom Spirit 120 CPU Cooler | Thermalright Assassin King 120 SE ARGB CPU Air Cooler |
|---|---|---|
| Brand | Thermalright | Thermalright |
| Heat Pipes | 7x6mm | 5x6mm |
| TDP Rating | N/A | 125-235W |
| Noise Level | N/A | ≤25.6 dB(A) |
| Compatibility | LGA1700/AM4 | LGA115X/AM4 |
Dimension comparison
Brand Overview
Both the Thermalright Phantom Spirit 120 CPU Cooler and the Thermalright Assassin King 120 SE ARGB CPU Air Cooler come from the reputable Taiwanese brand Thermalright, which boasts over 20 years of experience in the cooling solutions market. The brand has established a significant presence both domestically and internationally, focusing on producing high-quality computer accessories. While both products share the same brand heritage, they cater to slightly different market segments with their unique features and pricing.
Pricing Comparison
A notable difference between the two coolers is their price points. The Thermalright Phantom Spirit 120 is priced at C$47.90, while the Thermalright Assassin King 120 SE ARGB comes in at a more budget-friendly C$24.59. This makes the Assassin King a more attractive option for users looking for efficient cooling solutions on a tighter budget. However, the Phantom Spirit’s higher price may indicate added features or performance benefits that could justify the cost for some users.
Design and Dimensions
When comparing the physical dimensions, the Thermalright Phantom Spirit 120 measures 125mm x 135mm x 157mm, while the Assassin King is smaller at 120mm x 73mm x 148mm. The larger size of the Phantom Spirit allows for potentially better heat dissipation due to its increased surface area. However, the Assassin King’s more compact design might make it a better fit for medium-sized cases, appealing to users with space constraints. The choice here largely depends on the user's case size and cooling requirements.
Cooling Performance
In terms of cooling technology, both coolers utilize advanced AGHP techniques for effective heat management. The Phantom Spirit features a 7x6mm heat pipe configuration that aims to enhance cooling efficiency, while the Assassin King employs a 5x6mm setup. The Assassin King is rated for TDPs between 125 to 235W, which indicates it can handle a range of CPU loads effectively. However, the Phantom Spirit’s larger size might allow for slightly better thermal performance, especially in high-demand scenarios.
Noise Levels
Noise level is a critical factor for many PC builders, and here the Assassin King stands out with a noise level of ≤25.6 dB(A). This quieter operation is due to its efficient PWM fan that operates at a maximum speed of 1550 RPM. The Phantom Spirit’s specifications do not explicitly state its noise levels, but larger coolers often tend to operate slightly louder due to higher airflow. Users prioritizing a silent computing experience may prefer the Assassin King for its quieter operation.
Compatibility
Both coolers are designed to support a range of CPU sockets from Intel and AMD, making them versatile options for various builds. The Thermalright Phantom Spirit supports Intel sockets LGA1700, LGA2011, and LGA2066, as well as AMD AM4 and AM5. The Assassin King, while also compatible with Intel and AMD sockets, focuses on LGA115X, LGA1200, and LGA1700 for Intel, and AM4 and AM5 for AMD. This broad compatibility allows users to select either cooler without worrying about fitting issues in most modern builds.
Installation and Features
The installation process for both coolers is user-friendly, with the Phantom Spirit including corresponding mounting plates for different CPU socket platforms. The Assassin King enhances the user experience further with its colorful ARGB lighting effects, which can add a stylish element to PC builds. While the Phantom Spirit focuses on performance and longevity, as indicated by its S-FDB bearings and durable materials, the Assassin King's aesthetic appeal might attract gamers and users looking to customise their setups.
Which should you buy?
When deciding between the Thermalright Phantom Spirit 120 and the Thermalright Assassin King 120 SE ARGB, it ultimately depends on your specific needs and budget. If you prioritize cooling performance and don't mind spending a bit more, the Phantom Spirit may be the better option due to its larger size and advanced cooling technology. However, if you're looking for an affordable, quieter, and aesthetically pleasing cooler, the Assassin King presents a compelling choice at a significantly lower price of C$24.59. Each cooler has its strengths, making them suitable for different types of users.
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