Scythe Fuma 3 CPU Air Cooler, Intel LGA1700, vs Thermalrlght Peerless Assassin 120 SE CPU Air
Updated August 2026 — Scythe Fuma 3 CPU Air Cooler, Intel LGA1700, wins on build quality and cooling performa, Thermalrlght Peerless Assassin 120 SE CPU Air wins on value for money.
The Scythe Fuma 3 offers superior cooling performance and build quality, making it the better choice for high-end systems. However, the Thermalrlght Peerless Assassin 120 SE is a more budget-friendly option.
Why Scythe Fuma 3 CPU Air Cooler, Intel LGA1700, is better
Cooling Performance
Fuma 3 has superior airflow dynamics.
Build Quality
Sturdier radiator structure.
Installation
Easier installation process.
Why Thermalrlght Peerless Assassin 120 SE CPU Air is better
Price
Peerless Assassin is more affordable.
Noise Level
Both are quiet, but Fuma 3 is quieter.
Compatibility
Both support a wide range of CPUs.
Overall score
Specifications
| Spec | Scythe Fuma 3 CPU Air Cooler, Intel LGA1700, | Thermalrlght Peerless Assassin 120 SE CPU Air |
|---|---|---|
| Max Airflow | N/A | 66.17 CFM |
| Noise Level | Quiet | 25.6 dB(A) |
| Fan Type | PWM | PWM |
| Socket Support | LGA 1700, AM5 | LGA 1700, AM4/AM5 |
| Installation System | HPMS V | SS2 |
Dimension comparison
Design and Build Quality
The Scythe Fuma 3 features a dual-tower design with a striking black top cover, while the Thermalrlght Peerless Assassin 120 SE has a similar dual-tower design but sports an anodized brushed black top cover. The Fuma 3 is designed for high performance with its 6 x 6mm heat pipes and a premium-quality aluminum fin array, which enhances thermal dissipation. In contrast, the Peerless Assassin 120 SE also utilizes six 6mm heat pipes with AGHP technology, which improves heat exchange efficiency. While both coolers focus on aesthetics and functionality, the Scythe Fuma 3's sturdier radiator structure may offer slightly better durability and cooling efficiency during intense operations.
Cooling Performance
The Scythe Fuma 3 is engineered for high TDP processors, making it a strong contender for demanding gaming rigs and workstations. It uses two PWM fans with varying thicknesses (25mm and 15mm) that rotate in opposite directions, generating higher static pressure and stable airflow. On the other hand, the Thermalrlght Peerless Assassin 120 SE, equipped with two TL-C12C PWM fans, boasts a maximum airflow of 66.17 CFM at a noise level of 25.6 dB(A). While both coolers are engineered for effective cooling, the Scythe Fuma 3 may have a slight edge in airflow dynamics due to its fan configuration.
Compatibility
When it comes to compatibility, both coolers are designed to support a wide range of Intel and AMD processors. The Scythe Fuma 3 is compatible with Intel LGA 1700, LGA 1151, and AMD AM5/Ryzen sockets, making it versatile for various builds. The Thermalrlght Peerless Assassin 120 SE also supports a similar range, including Intel LGA 1700 and AMD AM4/AM5. However, the Peerless Assassin 120 SE requires the original motherboard's built-in backplate for installation, which may pose a slight inconvenience for users who do not have it readily available.
Installation Process
The installation experience differs between these two coolers. The Scythe Fuma 3 is noted for its easy installation process, thanks to its premium HPMS V mounting system, which is highly secure for various CPU sockets. In contrast, the Thermalrlght Peerless Assassin 120 SE features the SS2 installation system but notes that users must ensure compatibility with their case and motherboard. For those looking for hassle-free installation, the Scythe Fuma 3 may be a more appealing choice.
Noise Levels
Noise levels are critical for users who prefer a quiet computing environment. The Scythe Fuma 3's fan design aims to maintain silent operation, making it suitable for quiet builds. The Thermalrlght Peerless Assassin 120 SE operates at a maximum noise level of 25.6 dB(A), which is relatively quiet but may still be noticeable under load. While both coolers aim for quiet performance, the Scythe Fuma 3's design may allow for even quieter operation due to its fan configuration.
Price Comparison
In terms of pricing, the Scythe Fuma 3 is currently priced at $49.99, while the Thermalrlght Peerless Assassin 120 SE is available for $32.90. This makes the Peerless Assassin about 34% cheaper than the Fuma 3. For budget-conscious consumers, the lower price of the Thermalrlght cooler may be more attractive, but it’s essential to consider the performance differences that might justify the higher cost of the Fuma 3.
Brand Reputation
Both brands, Scythe and Thermalrlght, have established themselves in the CPU cooler market. Scythe is known for its innovative designs and focus on high performance, as evident in the Fuma 3. Thermalrlght, on the other hand, has a reputation for producing quality cooling solutions at competitive prices, showcased by the Peerless Assassin 120 SE. Depending on personal preference, users may lean towards one brand based on past experiences or brand loyalty.
Which should you buy?
Ultimately, the choice between the Scythe Fuma 3 and the Thermalrlght Peerless Assassin 120 SE depends on your specific needs and budget. If you're seeking top-tier cooling performance and are willing to spend a bit more, the Scythe Fuma 3 is an excellent option. However, if you're looking for a more budget-friendly solution that still offers solid performance, the Thermalrlght Peerless Assassin 120 SE is a commendable choice. Consider your system requirements and personal preferences when making your final decision.

