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Thermalright Assassin King 120 SE White ARGB CPU vs Thermalright Phantom Spirit 120SE CPU Air Cooler,

Updated August 2026 — Thermalright Phantom Spirit 120SE CPU Air Cooler, leads on cooling and design.

The Thermalright Phantom Spirit 120SE offers superior cooling performance and design, making it the better choice for high-performance builds. However, the Assassin King 120 SE is a budget-friendly option for standard use.

Why Thermalright Assassin King 120 SE White ARGB CPU is better

Price

Assassin King is significantly cheaper.

Size

More compact dimensions for smaller cases.

Weight

Lighter weight makes it easier to install.

Why Thermalright Phantom Spirit 120SE CPU Air Cooler, is better

Cooling

More heat pipes and dual fans enhance cooling.

Design

Sleek black anodized finish looks more premium.

Compatibility

Supports a wider range of CPU sockets.

Overall score

Thermalright Assassin King 120 SE White ARGB CPU
75
Thermalright Phantom Spirit 120SE CPU Air Cooler,
85

Specifications

SpecThermalright Assassin King 120 SE White ARGB CPUThermalright Phantom Spirit 120SE CPU Air Cooler,
Max Airflow66.17 CFM66.17 CFM
Noise Level≤25.6 dB(A)≤25.6 dB(A)
Fan Speed1550 RPM1500 RPM
Socket SupportLGA1700/AM4LGA1851/AM4
Price$19.82$35.90

Dimension comparison

Thermalright Assassin King 120 SE White ARGB CPUThermalright Phantom Spirit 120SE CPU Air Cooler,

Overview of the Thermalright Assassin King 120 SE White ARGB CPU Air Cooler

The Thermalright Assassin King 120 SE White ARGB is a budget-friendly option priced at $19.82. This cooler is designed for users seeking efficient cooling solutions without breaking the bank. It features five heat pipes and a 120mm PWM fan, ensuring a balance between cooling performance and noise levels.

With dimensions of 120mm x 73mm x 148mm and a weight of 0.64 kg, the Assassin King is compact enough for medium-sized cases. It supports a wide range of CPU sockets, including Intel LGA1700 and AMD AM4, making it versatile for many builds. The cooler's ARGB lighting adds aesthetic appeal, making it a solid choice for gamers and PC enthusiasts alike.

Overview of the Thermalright Phantom Spirit 120SE CPU Air Cooler

The Thermalright Phantom Spirit 120SE is positioned as a more premium option, retailing at $35.90. This cooler boasts seven heat pipes and dual 120mm PWM fans, delivering superior cooling performance compared to its counterpart.

Measuring 125mm x 135mm x 154mm and weighing slightly more than the Assassin King, the Phantom Spirit is designed for larger cases. It also supports a range of CPU sockets, including Intel LGA1851 and AMD AM5, catering to a broader audience. The black anodized finish not only enhances its look but also contributes to its heat dissipation capabilities, making it an attractive choice for high-performance builds.

Cooling Performance Comparison

In terms of cooling performance, the Phantom Spirit 120SE has an edge over the Assassin King 120 SE. The former’s dual fans and seven heat pipes allow for more efficient heat dissipation, which is crucial for high-performance CPUs. While both coolers offer a maximum airflow of 66.17 CFM and a noise level of ≤25.6 dB(A), the Phantom Spirit's additional fan provides extra cooling capacity, particularly under load.

Conversely, the Assassin King, while effective for standard use, may struggle with overclocked CPUs or during heavy workloads. Users seeking intensive gaming or demanding applications should consider the enhanced cooling capabilities of the Phantom Spirit for better thermal management.

Design and Aesthetics

Aesthetically, both coolers have their unique appeal. The Assassin King features a sleek white design with ARGB lighting, making it a visually striking addition to any build. Its compact size allows for easy integration into smaller cases, while still providing a touch of flair with its lighting effects.

On the other hand, the Phantom Spirit’s black anodized finish gives it a more understated yet elegant look. The dual fans not only enhance its cooling performance but also add to its visual presence. Users who prefer a more sophisticated and professional appearance may lean towards the Phantom Spirit, while those looking for a vibrant setup may prefer the Assassin King.

Installation and Compatibility

Both the Assassin King and Phantom Spirit are designed for easy installation, featuring mounting hardware compatible with various CPU sockets. The Assassin King supports Intel LGA1700, LGA115X, and AMD AM4 platforms, providing flexibility for most users.

The Phantom Spirit offers similar compatibility but extends its range to include Intel LGA1851 and LGA115X, along with AMD AM5. While both coolers come with the necessary mounting plates, the Phantom Spirit's slightly larger dimensions could require more space during installation, making it a consideration for those with limited case room.

Noise Levels and Operational Efficiency

Noise levels are an essential factor for many users, especially those building a quiet system. Both coolers operate at a maximum noise level of ≤25.6 dB(A), ensuring a quiet performance even under load. However, the Phantom Spirit, with its dual fans, may have a more balanced airflow that could potentially lead to quieter operation compared to a single fan setup.

The Assassin King, while quiet, may not provide the same level of cooling efficiency, which could lead to higher fan speeds during intense usage, resulting in slightly more noise. For users prioritizing a serene computing environment, both coolers maintain a relatively low noise profile, although the design of the Phantom Spirit could be marginally more effective in this regard.

Price Comparison

When it comes to pricing, the Thermalright Assassin King 120 SE is about 45% cheaper than the Phantom Spirit 120SE, priced at $19.82 versus $35.90. This significant price difference makes the Assassin King an appealing choice for budget-conscious consumers who still want reliable cooling performance.

However, the Phantom Spirit's higher price tag can be justified by its superior design, dual fans, and better cooling capabilities. Users should weigh their priorities—whether they value cost-effectiveness or are willing to invest more for enhanced performance and aesthetics.

Which should you buy?

Ultimately, the choice between the Thermalright Assassin King 120 SE and the Phantom Spirit 120SE comes down to individual needs and budget. If you're looking for a cost-effective solution that still offers decent performance for standard computing tasks, the Assassin King is an excellent choice at $19.82. However, for users seeking superior cooling performance, especially for high-performance setups or overclocking, the Phantom Spirit at $35.90 is worth the investment. Your decision should be based on your specific cooling requirements, case size, and aesthetic preferences.