Cooler Master i70C ARGB Low Profile CPU Air Cooler vs Thermalright Peerless Assassin 120 SE V2 CPU
Updated August 2026 — Cooler Master i70C ARGB Low Profile CPU Air Cooler wins on noise level and installation, Thermalright Peerless Assassin 120 SE V2 CPU wins on cooling and design.
The Cooler Master i70C offers a budget-friendly option with a compact design, while the Thermalright Peerless Assassin excels in performance and compatibility. Choose based on your specific needs.
Why Cooler Master i70C ARGB Low Profile CPU Air Cooler is better
Price
i70C is significantly cheaper at $19.49
Compact Design
i70C is ideal for low-profile builds
Noise Levels
i70C operates quieter at lower RPMs
Why Thermalright Peerless Assassin 120 SE V2 CPU is better
Cooling Performance
Peerless Assassin supports higher TDP CPUs
Compatibility
Peerless Assassin supports both AMD and Intel sockets
Airflow
Peerless Assassin has dual fans for better airflow
Overall score
Specifications
| Spec | Cooler Master i70C ARGB Low Profile CPU Air Cooler | Thermalright Peerless Assassin 120 SE V2 CPU |
|---|---|---|
| TDP Support | 95W | Unknown |
| Fan Speed | 650-1800 RPM | Up to 1850 RPM |
| Socket Compatibility | Intel LGA 1700/1851 | AMD AM4/AM5, Intel LGA 1700/1851 |
| Noise Level | Quiet | 29.5 dBA |
| Price | $19.49 | $38.99 |
Dimension comparison
Design and Aesthetics
When it comes to design, the Cooler Master i70C ARGB boasts a sleek, minimalist look with anodized black aluminum fins that create a modern vibe. Its compact low-profile design is tailored for Intel LGA 1700 and 1851 sockets, making it suitable for smaller chassis. In contrast, the Thermalright Peerless Assassin 120 SE V2 features a dual-tower structure that not only enhances its cooling capacity but also brings a more robust presence to your build. The Peerless Assassin's dual 120mm PWM fans contribute to its impressive cooling performance, making it an ideal choice for users who prioritize aesthetics alongside functionality.
Cooling Performance
The Cooler Master i70C ARGB is designed for CPUs with a thermal design power (TDP) of up to 95W, utilizing a copper insert for efficient heat dissipation. Its 120mm PWM fan operates at speeds ranging from 650 to 1,800 RPM, allowing for a balance between noise and airflow. In comparison, the Thermalright Peerless Assassin 120 SE V2 supports a wider range of CPUs with its dual 120mm fans that can spin up to 1,850 RPM, providing superior airflow and heat dissipation for high-load scenarios. This makes the Thermalright cooler a better choice for gamers and multitaskers who need reliable performance under pressure.
Compatibility
The Cooler Master i70C is specifically designed for Intel LGA 1700 and 1851 sockets, which limits its compatibility to Intel CPUs, particularly from the i3 to i5 series. However, its low-profile design makes it a great option for compact builds. On the other hand, the Thermalright Peerless Assassin 120 SE V2 is compatible with both AMD AM4/AM5 and Intel LGA 1700/1851 platforms, offering broader compatibility across multiple systems. This versatility makes the Peerless Assassin a practical upgrade for users looking to future-proof their builds.
Installation Ease
The installation of the Cooler Master i70C is simplified thanks to its redesigned brackets, which cater specifically to LGA 1700 and 1851 platforms. This makes it relatively straightforward for users, even those who may not be tech-savvy. In contrast, while the Thermalright Peerless Assassin 120 SE V2 also aims for ease of installation, its dual-tower design may require more space and careful handling during setup. Users should consider their own comfort level with installation when choosing between these two coolers.
Noise Levels
When it comes to noise output, the Cooler Master i70C operates quite quietly, especially at lower RPMs. The fan's adjustable speeds from 650 to 1,800 RPM allow users to tailor their cooling experience to their noise tolerance. Conversely, the Thermalright Peerless Assassin 120 SE V2's dual 120mm fans can produce a maximum noise level of 29.5 dBA at 1,850 RPM. While this is a reasonable level of noise for a cooler of its size and performance, users who prioritize a silent operation might lean towards the i70C for quieter performance.
Pricing
The Cooler Master i70C is priced at $19.49, making it about 50% cheaper than the Thermalright Peerless Assassin 120 SE V2, which retails for $38.99. This significant price difference could appeal to budget-conscious consumers looking for an efficient cooling solution without breaking the bank. However, it is important to consider the performance and features offered by each cooler in relation to their price points, as the higher cost of the Peerless Assassin may be justified by its superior performance and broader compatibility.
Brand Reputation
Both Cooler Master and Thermalright have established reputations in the cooling market. Cooler Master is known for its reliable and innovative cooling solutions, often catering to gamers and PC builders. The i70C is representative of their commitment to quality. Thermalright, on the other hand, is highly regarded for its efficient cooling systems, particularly among enthusiasts who demand high performance. The Peerless Assassin’s advanced design and robust cooling capabilities affirm Thermalright’s reputation as a go-to brand for serious users.
Which should you buy?
Ultimately, the choice between the Cooler Master i70C and the Thermalright Peerless Assassin 120 SE V2 depends on your specific needs. If you're looking for a budget-friendly, compact cooler that excels in low-profile setups, the i70C is an excellent choice at just $19.49. However, if you require superior cooling performance for gaming or heavy multitasking and are willing to invest more—at $38.99—the Peerless Assassin offers broader compatibility and better overall thermal performance. Both coolers have their strengths, making them suitable for different types of users and builds.

