Thermalright Peerless Assassin 120 Mini Black CPU vs Thermaltake Gravity i3 Intel LGA 1700 Cocket, 95W
Updated August 2026 — Thermalright Peerless Assassin 120 Mini Black CPU leads on design and build quality.
The Thermalright Peerless Assassin 120 Mini Black offers superior cooling performance and compatibility, while the Thermaltake Gravity i3 is a budget-friendly option for low-power CPUs.
Why Thermalright Peerless Assassin 120 Mini Black CPU is better
Cooling Performance
Higher airflow of 66.87 CFM vs 56.84 CFM
Compatibility
Supports more CPU sockets
Noise Level
Quieter operation at ≤ 25.6 dB(A) vs 36.5 dBa
Why Thermaltake Gravity i3 Intel LGA 1700 Cocket, 95W is better
Price
Significantly cheaper at $17.79
Compact Design
Lower profile at 2.58 inches
Installation
Quick and easy installation process
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 Mini Black CPU | Thermaltake Gravity i3 Intel LGA 1700 Cocket, 95W |
|---|---|---|
| Max Airflow | 66.87 CFM | 56.84 CFM |
| Noise Level | ≤ 25.6 dB(A) | 36.5 dBa |
| Fan Speed | 1500 RPM | 1200-3500 RPM |
| Compatibility | LGA 1150/1151/1155/1156/1200/1700/1851, AM4/AM5 | LGA 1700/1851 |
| Warranty | Not specified | 2 years |
Dimension comparison
Price Comparison
The Thermalright Peerless Assassin 120 Mini Black is priced at $34.39, while the Thermaltake Gravity i3 is significantly lower at $17.79, making it about 48% cheaper. This notable price difference is a crucial factor for budget-conscious buyers. The Gravity i3 offers a compelling option for those who prioritize cost without sacrificing essential performance, particularly if they are using low-power processors. Conversely, the Thermalright cooler, while more expensive, may justify its higher price with advanced features and compatibility for a wider range of CPU sockets.
Design and Build Quality
In terms of design, the Thermalright Peerless Assassin 120 Mini Black features a sleek, fully blackened aesthetic with an antioxidant coating, which enhances its durability and appearance. Its dimensions of 125mm x 110mm x 135mm contribute to a compact form factor suitable for various builds. On the other hand, the Thermaltake Gravity i3 boasts a low-profile design with a height of only 2.58 inches, making it an ideal choice for cases with limited vertical space. While both coolers are constructed from aluminum, the aesthetic appeal of the Thermalright may attract users looking for a more stylish option.
Cooling Performance
Cooling performance is where the Thermalright Peerless Assassin 120 Mini Black shines, featuring six heat pipes and a 120mm PWM fan capable of reaching speeds of 1500 RPM, which produces an impressive airflow of 66.87 CFM. This makes it suitable for a wider range of high-performance CPUs. In contrast, the Gravity i3 is designed for lower power processors, with a maximum airflow of 56.84 CFM from its 92mm fan. Although it performs well for its intended use, the difference in airflow and fan size indicates that the Thermalright is better equipped to handle demanding cooling tasks.
Noise Levels
Noise levels are a significant consideration for users who value a quiet computing experience. The Thermalright Peerless Assassin operates at a noise level of ≤ 25.6 dB(A), which is quite low and indicates that it will run quietly even under load. In comparison, the Thermaltake Gravity i3 has a noise level of 36.5 dBa, which is noticeably higher. This means that while the Gravity i3 is sufficient for casual use, the Thermalright may be preferable for those who prioritize a quieter system, particularly in environments where noise could be distracting.
Installation and Compatibility
The Thermalright Peerless Assassin offers extensive compatibility with various CPU sockets, including Intel LGA 1150, 1151, 1155, 1156, 1200, 1700, and 1851, as well as AMD AM4 and AM5. This wide support makes it a versatile choice for users with different system configurations. In contrast, the Thermaltake Gravity i3 is limited to Intel LGA 1700 and 1851 sockets, which may restrict its usability for some potential buyers. Both coolers are designed for easy installation, but the broader compatibility of the Thermalright gives it an edge in this category.
Warranty and Longevity
When considering warranty and longevity, the Thermalright cooler boasts an industrial fan life of up to 20,000 hours. The Thermaltake Gravity i3 offers a 2-year warranty but does not specify the fan's lifespan in detail. This could imply that the Thermalright may provide a more reliable long-term cooling solution. Users who plan to keep their systems running for extended periods might find the Thermalright's specifications reassuring, as they suggest a robust design meant to last.
Brand Reputation
Thermalright is recognized for its long-standing presence in the cooling market, with over 20 years of experience and a strong reputation among enthusiasts. On the other hand, Thermaltake is also a reputable brand but focuses more on diverse gaming and DIY PC products. The established track record of Thermalright in high-performance cooling may sway users who are looking for tried-and-true reliability in their CPU coolers.
Which should you buy?
Ultimately, the decision between the Thermalright Peerless Assassin 120 Mini Black and the Thermaltake Gravity i3 hinges on your specific needs and budget. If you require superior cooling performance, extensive compatibility, and quieter operation, the Thermalright is the better choice despite its higher price. However, if you're looking for a budget-friendly option that performs adequately for low-power CPUs and has a compact design, the Gravity i3 could be a more suitable fit. Consider your system requirements and budget to determine which cooler meets your needs best.

