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Thermalright Assassin King 120 SE White ARGB CPU vs Thermalright AXP90 X47 Black Low Profile CPU Cooler

Updated August 2026 — Thermalright Assassin King 120 SE White ARGB CPU wins on design and cooling performa, Thermalright AXP90 X47 Black Low Profile CPU Cooler wins on noise level.

The Thermalright Assassin King 120 SE offers better airflow and aesthetics, while the AXP90 X47 is more compact and quieter. Choose based on your build requirements.

Why Thermalright Assassin King 120 SE White ARGB CPU is better

Price

Assassin King is cheaper by $2.57

Airflow

66.17 CFM vs 60 CFM

Height

Assassin King fits in medium cases, while AXP90 is for compact builds

Why Thermalright AXP90 X47 Black Low Profile CPU Cooler is better

Noise Level

AXP90 operates at ≤22.4 dB(A)

Compactness

AXP90 is only 47mm tall

Durability

AXP90 has black nickel plating for corrosion resistance

Overall score

Thermalright Assassin King 120 SE White ARGB CPU
85
Thermalright AXP90 X47 Black Low Profile CPU Cooler
78

Specifications

SpecThermalright Assassin King 120 SE White ARGB CPUThermalright AXP90 X47 Black Low Profile CPU Cooler
Max RPM15502000
Noise Level≤25.6 dB(A)≤22.4 dB(A)
Socket SupportLGA 115X/1200/1700, AM4LGA 115X/1200, AM4/AM5
Cooling TechAGHP IIIAGHP
MaterialAluminumMetal

Dimension comparison

Thermalright Assassin King 120 SE White ARGB CPUThermalright AXP90 X47 Black Low Profile CPU Cooler

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

The Thermalright Assassin King 120 SE White ARGB CPU Air Cooler is priced at $19.82, making it the more budget-friendly option compared to its competitor. This cooler boasts a height of 148mm and features 5 heat pipes that utilize AGHP technology, which helps mitigate the inverse gravity effect, enhancing cooling efficiency in both horizontal and vertical orientations. With a weight of 0.64 kg, it is designed to fit comfortably within medium-sized computer cases. The cooler also includes a PWM fan that operates at a maximum speed of 1550 RPM, delivering airflow of 66.17 CFM while maintaining a noise level of ≤25.6 dB(A).

Overview of the Thermalright AXP90 X47 Black Low Profile CPU Cooler

The Thermalright AXP90 X47 Black Low Profile CPU Cooler is priced at $22.39, which is approximately 13% more expensive than the Assassin King 120 SE. At just 47mm tall, this cooler is specifically designed for compact builds, making it a suitable choice for ITX cases. It features 4 heat pipes and a slim 92mm PWM fan that operates at a maximum noise level of ≤22.4 dB(A), slightly quieter than the Assassin King. Its black nickel plating enhances durability while providing effective thermal resistance, making it a reliable option for users looking to save space without sacrificing performance.

Design and Aesthetics

In terms of design, the Assassin King 120 SE White ARGB offers a more pronounced aesthetic appeal with its colorful ARGB lighting effects. This cooler is equipped with a 120mm fan that not only provides efficient cooling but also adds a visual flair to your setup. In contrast, the AXP90 X47 features a sleek black finish that is understated, catering to users who prefer a more minimalist look. While both coolers have their unique design elements, the choice largely depends on personal preference and the overall theme of your build.

Cooling Performance

When it comes to cooling performance, the Thermalright Assassin King 120 SE excels with its 5 heat pipes and larger fan size. The higher airflow of 66.17 CFM at a maximum speed of 1550 RPM allows for efficient heat dissipation, making it a suitable choice for high-performance CPUs. On the other hand, the AXP90 X47, while compact, has a slightly lower airflow due to its smaller fan and fewer heat pipes. However, it still maintains a respectable cooling performance, making it a viable option for lower TDP CPUs or compact builds where space is a constraint.

Noise Levels

Noise levels are a critical consideration for many PC builders, and in this aspect, both coolers perform admirably. The Thermalright Assassin King 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. The AXP90 X47 is slightly quieter, with a maximum noise level of ≤22.4 dB(A), which may appeal to users prioritizing silence in their builds. While both coolers are designed to minimize noise, the AXP90 X47 edges out on this front, making it a better choice for ultra-quiet setups.

Compatibility and Installation

Compatibility is essential when choosing a CPU cooler, and both the Assassin King 120 SE and the AXP90 X47 support a wide range of Intel and AMD sockets. The Assassin King is compatible with Intel LGA 115X/1200/1700 and AMD AM4 sockets, providing flexibility for various builds. The AXP90 X47 also supports Intel LGA 115X/1200 and AMD AM4/AM5, ensuring it meets the needs of most users. Both coolers come with the necessary mounting hardware, making installation straightforward. However, the more compact nature of the AXP90 X47 may simplify installation in tighter spaces.

Price Comparison

The Thermalright Assassin King 120 SE is priced at $19.82, while the AXP90 X47 comes in at $22.39. This makes the Assassin King about 17% cheaper than its competitor. While the price difference is notable, it's essential to weigh this against the performance, aesthetics, and features each cooler offers. Budget-conscious users may find the Assassin King to be the more attractive option, whereas those seeking a compact cooler might justify the higher price of the AXP90 X47.

Which should you buy?

Ultimately, the choice between the Thermalright Assassin King 120 SE White ARGB and the Thermalright AXP90 X47 Black Low Profile CPU Cooler hinges on your specific needs and preferences. If you prioritize aesthetics, superior airflow, and value for money, the Assassin King is the way to go. Conversely, if you're building a compact system and prefer a quieter operation, the AXP90 X47 may be the better choice. Both coolers deliver solid performance, making them strong contenders in the CPU cooler market.