Thermalright Assassin King 120 SE White ARGB CPU vs Thermalright AXP90-X53 Full Cooper Low Profile CPU
Updated August 2026 — Thermalright Assassin King 120 SE White ARGB CPU wins on aesthetics and cooling performa, Thermalright AXP90-X53 Full Cooper Low Profile CPU wins on compatibility.
The Thermalright Assassin King 120 SE offers better cooling performance and value, while the AXP90-X53 excels in compact builds and quieter operation.
Why Thermalright Assassin King 120 SE White ARGB CPU is better
Price
Assassin King is $19.82, AXP90-X53 is $35.90
Cooling
Assassin King has 66.17 CFM airflow vs AXP90-X53's 42.58 CFM
Height
Assassin King is suitable for standard builds, while AXP90-X53 is low-profile
Why Thermalright AXP90-X53 Full Cooper Low Profile CPU is better
Noise
AXP90-X53 operates at 22.4 dB(A), quieter than Assassin King's 25.6 dB(A)
Materials
AXP90-X53 is made of full copper for better heat transfer
Compact Design
AXP90-X53 is ideal for small form factor builds
Overall score
Specifications
| Spec | Thermalright Assassin King 120 SE White ARGB CPU | Thermalright AXP90-X53 Full Cooper Low Profile CPU |
|---|---|---|
| Price | $19.82 | $35.90 |
| Airflow | 66.17 CFM | 42.58 CFM |
| Noise Level | 25.6 dB(A) | 22.4 dB(A) |
| Material | Aluminum | Copper |
| Compatibility | Intel/AMD | Intel/AMD |
Dimension comparison
Pricing Comparison
When it comes to pricing, the Thermalright Assassin King 120 SE White ARGB CPU Air Cooler is the more economical option at $19.82, compared to the Thermalright AXP90-X53 Full Cooper Low Profile CPU Cooler ITX, which retails for $35.90. This means the AXP90-X53 is approximately 81% more expensive than the Assassin King. If budget is your primary concern, the Assassin King stands out as the clear winner in this category, allowing you to allocate your funds elsewhere in your build.
Cooling Performance
In terms of cooling performance, the Thermalright Assassin King features five heat pipes and a maximum airflow of 66.17 CFM, which is notably higher than the AXP90-X53's maximum airflow of 42.58 CFM. This translates to more efficient cooling capabilities under load for the Assassin King, making it a better choice for users looking to push their CPUs to higher performance levels. Both coolers utilize AGHP technology to combat gravity's impact on cooling efficiency, but the superior airflow of the Assassin King gives it a distinct edge.
Size and Compatibility
The Thermalright AXP90-X53 is specifically designed as a low-profile cooler, standing at just 53mm tall, making it ideal for compact builds such as HTPCs and ITX systems. In contrast, the Assassin King has a height of 148mm, which may limit its compatibility with smaller cases. While the AXP90-X53 excels in compact environments, the Assassin King is more suitable for standard builds where space is less of a constraint. This distinction makes each cooler appealing to different types of users based on their specific case size and form factor requirements.
Installation Process
Both coolers are designed with user-friendly installation in mind, but the AXP90-X53 includes specific instructions for scenarios where its backplate might conflict with other motherboard components. This highlights its compatibility with different mounting scenarios. On the other hand, the Assassin King comes with metal fasteners designed for both Intel and AMD platforms, ensuring a straightforward installation process. If you value versatility in installation, the Assassin King may be the better option, while the AXP90-X53's tailored instructions cater to users with specific needs.
Build Quality and Materials
The thermal performance of each cooler is closely tied to its build quality and materials. The Thermalright Assassin King is constructed with aluminum and equipped with S-FDB bearings, ensuring longevity and efficient heat dissipation. The AXP90-X53, however, boasts a full copper construction, which significantly enhances heat transfer efficiency. This may translate to better overall cooling performance under stress, particularly in small form factor builds where heat can accumulate. For users who prioritize premium materials and thermal performance, the AXP90-X53 may appeal more, despite its higher price point.
Noise Levels
Noise levels are crucial for many users, especially in quieter environments. The Thermalright Assassin King has a maximum noise level of 25.6 dB(A), which is relatively quiet for an air cooler. In comparison, the AXP90-X53 operates at a slightly lower maximum noise level of 22.4 dB(A). This makes the AXP90-X53 a marginally quieter option, which can be advantageous for users who prioritize a silent computing experience. However, both coolers are designed to maintain low noise levels while providing effective cooling, making them suitable for most environments.
Aesthetic Appeal
The Thermalright Assassin King features ARGB lighting, adding a visual flair to your build, which is especially appealing for gamers and those who enjoy showcasing their hardware. The AXP90-X53, while lacking ARGB lighting, presents a sleek, minimalist design that may appeal to users looking for a more understated aesthetic. Your choice here will depend on whether you prefer vibrant lighting effects or a more subtle look for your system.
Which should you buy?
Ultimately, the decision between the Thermalright Assassin King 120 SE White ARGB CPU Air Cooler and the Thermalright AXP90-X53 Full Cooper Low Profile CPU Cooler ITX depends on your specific needs. If you're looking for a budget-friendly cooler with excellent airflow and compatibility with a wide range of cases, the Assassin King is the clear choice. However, if you're building a compact system and prioritize low profile design, materials, and slightly quieter operation, the AXP90-X53 may justify its higher price. Consider your system requirements and personal preferences to make the best choice for your setup.

