vsversusfinder

Scythe Fuma 3 CPU Air Cooler, Intel LGA1700, vs Thermalright Assassin X 120R SE V2 CPU Cooler, 4×

Updated August 2026 — Scythe Fuma 3 CPU Air Cooler, Intel LGA1700, wins on build quality and cooling performa, Thermalright Assassin X 120R SE V2 CPU Cooler, 4× wins on value for money.

The Scythe Fuma 3 offers superior cooling performance and advanced features, making it the better choice for high-end users, while the Thermalright Assassin X 120R SE V2 is a budget-friendly option for casual users.

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

Cooling Performance

Dual-tower design with six heat pipes

Noise Levels

Quieter operation with Kaze Flex II fans

Installation

Easier installation with Premium HPMS V system

Why Thermalright Assassin X 120R SE V2 CPU Cooler, 4× is better

Price

Significantly lower cost at $16.59

Size

Slightly shorter height for tighter cases

Compatibility

Compatible with a wider range of sockets

Overall score

Scythe Fuma 3 CPU Air Cooler, Intel LGA1700,
85
Thermalright Assassin X 120R SE V2 CPU Cooler, 4×
65

Specifications

SpecScythe Fuma 3 CPU Air Cooler, Intel LGA1700,Thermalright Assassin X 120R SE V2 CPU Cooler, 4×
Cooling TypeAirAir
RPMPWM1550
Noise LevelLow25.6 dB(A)
Socket SupportLGA1700, AM5LGA1150, AM4
Price$49.99$16.59

Dimension comparison

Scythe Fuma 3 CPU Air Cooler, Intel LGA1700,Thermalright Assassin X 120R SE V2 CPU Cooler, 4×

Overview of the Scythe Fuma 3 CPU Air Cooler

The Scythe Fuma 3 is priced at $49.99, making it a premium option among CPU coolers. It features a dual-tower design with dual heatsinks and fans, which enhances heat dissipation for high-performance cooling. This cooler is designed to handle high TDP processors, including popular models like the Intel Core i9-13900K and AMD Ryzen 7 3700X. Its six 6mm heat pipes and copper base plate ensure efficient thermal transfer, making it suitable for gaming rigs and workstations alike.

The Fuma 3 also boasts an improved asymmetric design that allows unrestricted access to RAM slots, ensuring compatibility with various motherboard configurations. With a height of only 154mm, it can fit most Mini ITX cases, making it a versatile choice for different builds.

Overview of the Thermalright Assassin X 120R SE V2

The Thermalright Assassin X 120R SE V2 is an economical option priced at $16.59, positioning it as a budget-friendly alternative in the CPU cooler market. This cooler features a compact design with dimensions of 120mm x 71mm x 148mm, making it compatible with a wider range of cases. It is equipped with four 6mm heat pipes and a copper base, which ensures effective cooling performance.

This model includes a 120mm PWM fan that operates at a speed of 1550 RPM, producing a maximum airflow of 66.17 CFM while maintaining a noise level of 25.6 dB(A). The Assassin X 120R SE V2 is designed for both Intel and AMD platforms, making it a flexible choice for users with different CPU sockets.

Cooling Performance Comparison

The Scythe Fuma 3 offers superior cooling performance compared to the Thermalright Assassin X 120R SE V2. With its dual-tower design and six heat pipes, it excels in heat dissipation, particularly for high-performance CPUs. The Fuma 3’s configuration allows it to handle demanding workloads efficiently, making it ideal for enthusiasts and gamers.

In contrast, while the Assassin X 120R SE V2 provides reliable cooling for budget users, its single tower design and fewer heat pipes may not match the cooling performance of the Fuma 3 under heavy loads. Users who push their systems to the limit may find the Fuma 3 a more effective solution.

Noise Levels and Fan Technology

The Scythe Fuma 3 utilizes Kaze Flex II fans, known for their quiet operation. These fans rotate in opposing directions, generating higher static pressure and stable airflow while maintaining low noise levels. This design philosophy is particularly beneficial for users who prioritize a silent computing environment.

On the other hand, the Thermalright Assassin X 120R SE V2 features a PWM fan that operates at a maximum speed of 1550 RPM. While it is engineered to operate quietly, with a noise level of 25.6 dB(A), it may not achieve the same level of silence as the Fuma 3 under load. Consequently, users who are sensitive to noise might prefer the advanced fan technology of the Fuma 3.

Installation and Compatibility

The Scythe Fuma 3 is designed for easy installation, featuring the Premium HPMS V mounting system, which simplifies the process for both Intel and AMD sockets. It supports a wide range of CPU sockets, including Intel LGA 1700 and AMD AM5, making it a versatile choice for various builds.

Similarly, the Thermalright Assassin X 120R SE V2 is also compatible with multiple Intel and AMD sockets, including LGA1150, LGA1151, AM4, and AM5. Its installation process is straightforward, aided by the inclusion of metal fasteners for secure mounting. However, users may find the Fuma 3's installation experience slightly more user-friendly due to its well-thought-out design.

Size and Form Factor

The Scythe Fuma 3 stands at 154mm tall, making it suitable for most Mini ITX motherboards. Its dual-tower design not only enhances cooling performance but also maintains a compact footprint that does not obstruct RAM slots, which is advantageous for users with high-profile RAM modules.

In contrast, the Thermalright Assassin X 120R SE V2 is slightly shorter at 148mm, which may offer additional compatibility with tighter cases. Its compact dimensions make it a good choice for users who require a smaller cooler without sacrificing too much cooling performance.

Price Comparison

The price difference between these two coolers is significant, with the Scythe Fuma 3 retailing at $49.99 and the Thermalright Assassin X 120R SE V2 at just $16.59. This means the Fuma 3 is about 201% more expensive than the Assassin X 120R SE V2. While the Fuma 3 offers enhanced cooling capabilities and advanced technology, budget-conscious users may find the affordable price of the Assassin X more appealing.

Which should you buy?

In conclusion, the decision between the Scythe Fuma 3 and the Thermalright Assassin X 120R SE V2 largely depends on your specific needs and budget. If you are looking for exceptional cooling performance, especially for high-TDP processors, the Fuma 3 is the better choice. Its superior design, lower noise levels, and easy installation make it worth the investment for serious gamers and professionals. However, if you're on a tighter budget and need a reliable cooler for standard use, the Assassin X 120R SE V2 offers solid performance at a fraction of the cost, making it a sensible option for casual users.