SCYTHE Big Shuriken 4 Low Profile CPU Cooler, 4.7" vs Thermalright Peerless Assassin 120 SE V3 CPU Air
Updated August 2026 — Thermalright Peerless Assassin 120 SE V3 CPU Air leads on noise level and cooling.
The SCYTHE Big Shuriken 4 is a compact and budget-friendly option, while the Thermalright Peerless Assassin 120 SE V3 offers superior cooling performance and quieter operation.
Why SCYTHE Big Shuriken 4 Low Profile CPU Cooler, 4.7" is better
Price
SCYTHE is cheaper by $2.91
Size
Compact design for small builds
Simplicity
Easier installation in tight spaces
Why Thermalright Peerless Assassin 120 SE V3 CPU Air is better
Cooling
Higher fan speed for better cooling
Noise
Quieter operation at 29.8dB
Compatibility
Wider socket support for upgrades
Overall score
Specifications
| Spec | SCYTHE Big Shuriken 4 Low Profile CPU Cooler, 4.7" | Thermalright Peerless Assassin 120 SE V3 CPU Air |
|---|---|---|
| Max Power | 200W | 200W |
| Noise Level | 31.78dB | 29.8dB |
| Fan Speed | N/A | 2000RPM |
| Socket Support | LGA 1851, AM5 | LGA 1851, 1700, AM4, AM5 |
| Cooling Type | Air | Air |
Dimension comparison
Overview of the Coolers
When it comes to CPU cooling, two contenders stand out: the SCYTHE Big Shuriken 4 Low Profile CPU Cooler and the Thermalright Peerless Assassin 120 SE V3 CPU Air Cooler. Both coolers offer unique features tailored to different user needs. The SCYTHE Big Shuriken 4 is priced at $32.99, while the Thermalright Peerless Assassin 120 SE V3 comes in at $35.90, making it approximately 9% more expensive than its competitor.
Design and Build Quality
The SCYTHE Big Shuriken 4 is designed as a low-profile cooler, measuring 4.7" x 4.8" x 2.6". This compact size makes it ideal for Mini-ITX builds or systems with limited space. In contrast, the Thermalright Peerless Assassin features a double-tower design with dual fans, which contributes to its larger size of 125mm x 135mm x 155mm. The additional size of the Thermalright design allows for enhanced cooling performance, but it may not fit in smaller cases.
Cooling Performance
The SCYTHE Big Shuriken 4 boasts six heat pipes, promising efficient heat dissipation that outperforms its predecessor, the Shuriken 3. It is capable of handling thermal loads of up to 200W while maintaining a noise level of 31.78dB. On the other hand, the Thermalright Peerless Assassin also incorporates six heat pipes and dual fans, with a fan speed reaching up to 2000RPM, resulting in a maximum noise level of 29.8dB. The capability of the Thermalright cooler to operate at higher fan speeds may provide better cooling performance, though it also depends on the specific application and case airflow.
Compatibility
Both coolers are compatible with a wide range of CPU sockets. The SCYTHE Big Shuriken 4 supports Intel LGA 1851 and AMD AM5, making it versatile for various builds. The Thermalright Peerless Assassin takes compatibility a step further, supporting various Intel sockets including LGA 1851, 1700, and 115x, as well as AMD AM4 and AM5. This extensive compatibility may make the Thermalright a better choice for users who plan to upgrade their systems frequently or utilize different platforms.
Noise Levels
Noise levels are a crucial factor for many users, especially those building a quiet system. The SCYTHE Big Shuriken 4 operates at 31.78dB, which is relatively quiet but may still be noticeable under load. The Thermalright Peerless Assassin, with its maximum noise level of 29.8dB, edges out slightly in this category, making it the quieter option of the two. The dual PWM fans in the Thermalright cooler also allow for more dynamic speed adjustments based on temperature, potentially leading to quieter operation during lighter tasks.
Installation Process
Ease of installation can often be a deciding factor for many builders. The SCYTHE Big Shuriken 4 is designed to be compact and straightforward to install, especially in smaller cases. However, detailed installation instructions are not provided in the data. In contrast, the Thermalright Peerless Assassin includes mounting accessories and a specific note about using the original backplate for AMD installations. This may imply a more complex installation process, but the detailed guidance provided can help ease concerns for users unfamiliar with CPU cooler setups.
Pricing and Value
With the SCYTHE Big Shuriken 4 priced at $32.99, it is the more budget-friendly option compared to the Thermalright Peerless Assassin, which retails for $35.90. This translates to about $2.91 in savings if you choose the SCYTHE cooler. While the price difference is relatively small, it may be significant for users on a tight budget or those looking to build a cost-effective system. The perceived value of each cooler will ultimately depend on the specific needs and preferences of the user.
Which should you buy?
Choosing between the SCYTHE Big Shuriken 4 and the Thermalright Peerless Assassin 120 SE V3 ultimately comes down to your specific needs and usage scenarios. If you require a compact solution for a small build, the SCYTHE cooler offers excellent performance for its size at a lower price. However, if you prioritize cooling efficiency and quieter operation, along with broader compatibility, the Thermalright cooler might justify its higher cost. Consider your case size, cooling requirements, and budget to make the best decision for your build.

