Thermalright Peerless Assassin 120 Mini Black CPU vs Thermalright TL-C12C X3 CPU Fan
Updated August 2026 — Thermalright Peerless Assassin 120 Mini Black CPU leads on performance and value.
The Thermalright Peerless Assassin 120 Mini Black offers superior cooling performance and compatibility, making it the better choice for high-performance setups. The TL-C12C X3 is a budget-friendly option suitable for general use.
Why Thermalright Peerless Assassin 120 Mini Black CPU is better
Cooling Performance
Peerless Assassin has advanced AGHP technology.
Compatibility
Supports a wider range of CPU sockets.
Airflow
Higher airflow at 66.87 CFM compared to 66.17 CFM.
Why Thermalright TL-C12C X3 CPU Fan is better
Price
TL-C12C X3 is significantly cheaper.
Noise Level
Both are quiet, but TL-C12C X3 is optimized for minimal noise.
Versatility
Can be used as both a case fan and with CPU coolers.
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 Mini Black CPU | Thermalright TL-C12C X3 CPU Fan |
|---|---|---|
| Max RPM | 1500 | 1550 |
| Noise Level | 25.6 dB(A) | 25.6 dB(A) |
| Heat Pipes | 6 | 0 |
| Bearing Type | S-FDB | S-FDB |
| Power Connector | 4-pin | 4-pin |
Dimension comparison
Overview of Thermalright Peerless Assassin 120 Mini Black CPU Cooler
The Thermalright Peerless Assassin 120 Mini Black CPU Cooler is designed for efficient cooling performance. Priced at $34.39, it features six heat pipes and AGHP technology to enhance heat dissipation. This cooler is compatible with various Intel and AMD sockets, making it versatile for different builds. With a maximum fan speed of 1500 RPM, it produces an airflow of 66.87 CFM while maintaining noise levels at or below 25.6 dB(A). This cooler’s design and materials aim to provide not only optimal cooling but also an aesthetic appeal with its fully blackened body.
Overview of Thermalright TL-C12C X3 CPU Fan
The Thermalright TL-C12C X3 CPU Fan is a budget-friendly cooling solution priced at just $11.99. This 120mm case cooler fan is equipped with S-FDB bearings that ensure silent operation and long lifespan. With a maximum speed of 1550 RPM and airflow of 66.17 CFM, it is slightly less efficient than the Peerless Assassin. However, it is designed for flexibility, functioning well as both a case fan and in conjunction with CPU coolers. This fan's noise level peaks at 25.6 dB(A), making it a quiet option for maintaining system temperature.
Cooling Performance Comparison
In terms of cooling performance, the Thermalright Peerless Assassin 120 Mini Black excels with its six heat pipes and advanced AGHP technology. This technology is specifically designed to mitigate the effects of gravity on heat dissipation, making it highly efficient for varied orientations. The maximum airflow of 66.87 CFM at 1500 RPM provides superior cooling compared to the TL-C12C X3's 66.17 CFM at 1550 RPM. While the TL-C12C X3 is effective, the Peerless Assassin's design focuses more on CPU cooling effectiveness, especially for high-performance setups.
Noise Levels and Operational Efficiency
When it comes to noise levels, both fans operate at similar ranges, with the Peerless Assassin peaking at 25.6 dB(A) and the TL-C12C X3 matching that figure. The engineering behind the TL-C12C X3 emphasizes quiet operation, thanks to its silicone corner pads that reduce vibration and noise. However, the Peerless Assassin offers a more comprehensive cooling solution, which might justify its slightly higher noise output under heavy load. Therefore, while both products promise relatively silent performance, the TL-C12C X3 is optimized for minimal noise as a standalone case fan.
Compatibility and Installation
The Thermalright Peerless Assassin 120 Mini Black is compatible with a wide range of CPU sockets, including Intel's LGA 1150, 1151, 1700, and AMD's AM4 and AM5. This flexibility makes it suitable for various builds, whether upgrading an older system or building a new one. In contrast, the TL-C12C X3, while versatile as a case fan, is primarily designed to complement CPU coolers rather than replace them. Installation for both products is straightforward, but the Peerless Assassin's greater compatibility with CPU sockets adds an advantage for users looking for a seamless upgrade.
Price and Value Analysis
The price difference between the two products is significant, with the Thermalright Peerless Assassin 120 Mini Black costing $34.39, while the TL-C12C X3 is priced at $11.99. This means the Peerless Assassin is about 187% more expensive than the TL-C12C X3. However, the higher price reflects its advanced cooling technology and additional features, which may appeal to gamers and content creators needing reliable cooling under load. For users on a strict budget or those needing a simple case fan, the TL-C12C X3 presents substantial value at its lower price point.
Brand Reputation and Reliability
Thermalright has established a solid reputation for quality and innovation in cooling solutions over its 20-year history. The Peerless Assassin's design showcases advanced technology that reflects the brand's commitment to performance. The TL-C12C X3, while effective, serves as a more basic offering in their product lineup. Both products are backed by the brand's commitment to reliability; however, the Peerless Assassin may be seen as a more robust choice for users seeking long-term performance in demanding environments.
Which should you buy?
Choosing between the Thermalright Peerless Assassin 120 Mini Black CPU Cooler and the Thermalright TL-C12C X3 CPU Fan ultimately depends on your specific needs. If you require high-performance cooling and plan to push your CPU to its limits, the Peerless Assassin offers superior technology and compatibility for $34.39. However, if your priority is budget and you need a reliable fan for general use or as a supplementary cooler, the TL-C12C X3 at $11.99 is a smart choice. Each product serves different purposes, so your decision should align with your cooling requirements and budget constraints.

