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Scythe Fuma 3 CPU Air Cooler, Intel LGA1700, vs Thermalright Assassin King 120 SE White ARGB CPU

Updated August 2026 — Scythe Fuma 3 CPU Air Cooler, Intel LGA1700, leads on cooling performa and build quality.

The Scythe Fuma 3 offers superior cooling performance and quieter operation, making it the better choice for high-performance builds. The Thermalright Assassin King 120 SE is a budget-friendly option suitable for mid-range systems.

Why Scythe Fuma 3 CPU Air Cooler, Intel LGA1700, is better

Cooling Performance

Fuma 3 is designed for high TDP processors.

Noise Levels

Fuma 3 operates quieter under load.

Build Quality

Fuma 3 has a more robust dual tower design.

Why Thermalright Assassin King 120 SE White ARGB CPU is better

Price

Assassin King is significantly cheaper.

Size

Assassin King is slightly shorter, fitting in more cases.

Aesthetic Appeal

Assassin King features customizable ARGB lighting.

Overall score

Scythe Fuma 3 CPU Air Cooler, Intel LGA1700,
85
Thermalright Assassin King 120 SE White ARGB CPU
65

Specifications

SpecScythe Fuma 3 CPU Air Cooler, Intel LGA1700,Thermalright Assassin King 120 SE White ARGB CPU
Socket SupportLGA1700, LGA1151, AM5, AM4LGA1700, 1150, 1151, AM4, AM5
Max Noise Level≤25dB(A)≤25.6dB(A)
Fan TypePWM, Dual FansPWM, Single Fan
Cooling EfficiencyHigh TDPMid-range
Installation EaseEasyStraightforward

Dimension comparison

Scythe Fuma 3 CPU Air Cooler, Intel LGA1700,Thermalright Assassin King 120 SE White ARGB CPU

Design and Build Quality

The design and build quality of the Scythe Fuma 3 and the Thermalright Assassin King 120 SE White ARGB showcase distinct philosophies. The Scythe Fuma 3 features a dual tower setup with a sleek black top cover, which emphasizes both aesthetics and functionality. Its superior aluminum fin array enhances thermal dissipation, while the impressive height of just 154mm allows for compatibility with most Mini ITX motherboards. In contrast, the Thermalright Assassin King 120 SE White ARGB sports a striking white design accentuated by ARGB lighting. While it is slightly shorter at 148mm, its dimensions allow it to fit into medium-sized cases without difficulty. Both coolers utilize quality materials, but the Scythe Fuma 3 is built to cater to more demanding cooling needs.

Cooling Performance

When it comes to cooling performance, the Scythe Fuma 3 is engineered for high TDP processors. Its dual heatsinks and fans, combined with six 6mm heat pipes, optimize heat dissipation, making it suitable for powerful CPUs like the Intel 13900K and AMD Ryzen 3700X. The Fuma 3's innovative fan design, featuring two fans rotating in opposite directions, maximizes static pressure and airflow while maintaining a quiet operation. On the other hand, the Thermalright Assassin King 120 SE, equipped with five 6mm heat pipes and a single PWM fan, offers respectable cooling performance, especially for mid-range builds. However, its cooling efficacy may not match the Fuma 3 under extreme loads, making it better suited for less demanding applications.

Noise Levels

In terms of noise levels, both coolers are designed with quiet operation in mind, but the Scythe Fuma 3 has a slight edge. The Kaze Flex II fans used in the Fuma 3 are known for their Fluid Dynamic Bearing technology, which enables them to operate quietly while delivering efficient cooling. The Fuma 3 manages to keep noise levels low, even under load. Conversely, the Thermalright Assassin King 120 SE features an efficient TL-C12CW-S fan that operates at a maximum noise level of 25.6dB(A). While the Assassin King is designed to minimize noise, the advanced fan setup of the Fuma 3 makes it a better choice for noise-sensitive environments.

Compatibility and Installation

Both the Scythe Fuma 3 and the Thermalright Assassin King 120 SE offer broad compatibility with Intel and AMD sockets, ensuring a fit for a wide range of systems. The Fuma 3 supports modern Intel sockets including LGA1700 and LGA1151, along with AMD AM5 and AM4. Its Premium HPMS V design simplifies installation, making it user-friendly for builders of all skill levels. The Thermalright cooler also covers a variety of sockets, supporting Intel LGA1700, 1150, 1151, and AMD AM4/AM5. Its installation process is straightforward due to the included mounting hardware. While both coolers are compatible with mainstream CPUs, the Fuma 3's installation features give it a slight advantage in user experience.

Price Comparison

The price difference between the Scythe Fuma 3 and the Thermalright Assassin King 120 SE is significant, with the Fuma 3 priced at $49.99 and the Assassin King at just $19.82. This means the Thermalright cooler is approximately 60% cheaper than the Scythe option. While the lower price of the Assassin King makes it an attractive choice for budget-conscious consumers, it is essential to consider whether the performance trade-offs justify the savings. For users prioritizing high performance and better cooling capabilities, the Scythe Fuma 3 may provide better value despite its higher price.

Aesthetic Appeal

Aesthetic preferences can influence your choice between the two coolers. The Scythe Fuma 3 boasts a sleek and professional look with its all-black finish, making it a versatile addition to various build themes. Its dual-tower design not only enhances cooling but also adds a bold visual element to your setup. Meanwhile, the Thermalright Assassin King 120 SE shines with its white ARGB lighting, appealing to users who want a vibrant and customizable lighting scheme. The choice here largely comes down to personal preference, but each cooler presents a unique visual identity that can enhance your PC's overall appearance.

Customer Support and Brand Reputation

Both Scythe and Thermalright have established reputations in the CPU cooler market. Scythe is known for its high-performance cooling solutions and has garnered positive reviews for the Fuma series. Thermalright, with over 20 years of experience, also has a solid track record, particularly in the player market. Both brands offer customer support, but user experiences can vary. When selecting a cooler, consider the brand's reputation for reliability and customer service, as this can impact your long-term satisfaction with the product.

Which should you buy?

The decision between the Scythe Fuma 3 and the Thermalright Assassin King 120 SE ultimately hinges on your specific needs and budget. If you seek superior cooling performance, especially for high-TDP CPUs, and are willing to invest more, the Scythe Fuma 3 is the better choice. Its advanced design and quiet operation cater to enthusiasts and gamers alike. However, if you are on a tighter budget and require a capable cooler for mid-range builds, the Thermalright Assassin King 120 SE offers excellent value without breaking the bank. Each cooler has its strengths, making them suitable for different types of users.