Auotac 850W Fully Modular Power Supply, 80+ Gold vs CORSAIR RM Series , RM650, Fully Modular Power Supply

Overview of the Auotac 850W vs. CORSAIR RM650

The Auotac 850W Fully Modular Power Supply is priced at $79.99, making it about 43% cheaper than the CORSAIR RM650, which comes in at $138.31. Both power supplies provide reliable performance, but their specifications and features differ significantly, catering to different user needs. Understanding these differences will help you make an informed decision based on your specific requirements.

Efficiency and Certification

The Auotac 850W boasts an 80 PLUS Gold certification, delivering up to 92% efficiency. This means it converts a significant portion of input power into usable output power, minimizing waste. On the other hand, the CORSAIR RM650 also holds the same 80 PLUS Gold certification, ensuring that both units operate efficiently. However, the Auotac's slightly higher wattage may allow for more headroom in power delivery, especially when using high-performance components.

Modular Design

Both power supplies feature fully modular designs, allowing users to connect only the cables they need for their systems. This design reduces cable clutter and optimizes airflow, which is crucial for maintaining system temperatures. The Auotac includes dragon-patterned cables and a dual-color 12V-2x6 PCI-E 5.1 cable, providing a unique aesthetic and functional benefit. The CORSAIR RM650 also features modular cables and is designed for compatibility with modern graphics cards and motherboards through its triple EPS12V connectors.

Cooling Solutions

Cooling is an essential aspect of power supply performance. The Auotac includes a 140mm RGB low-noise smart fan that operates silently and has a long lifespan, outperforming standard fans in heat dissipation. In contrast, the CORSAIR RM650 features a 140mm rifle bearing fan with a specially calculated fan curve to minimize noise, even under full load. Additionally, it offers a Zero RPM fan mode for silent operation during low to medium loads, making it an attractive option for users looking for quiet performance.

Component Quality

The Auotac power supply uses 105°C-rated Japanese capacitors, which are known for their reliability and durability, ensuring stable performance even under heavy loads. The CORSAIR RM650 also utilizes industrial-grade 105°C-rated capacitors, ensuring solid electrical performance and reliability. While both power supplies prioritize high-quality components, the Auotac's emphasis on Japanese capacitors may appeal more to users focused on long-term stability.

Additional Features

The Auotac comes with a PSU tester and cable management tools, making it user-friendly, especially for those new to building PCs. The included tool kit allows users to verify performance without connecting to the motherboard, adding an extra layer of convenience. The CORSAIR RM650, while lacking these specific tools, offers a comprehensive warranty of ten years, reflecting confidence in its durability and reliability.

Price Comparison

With the Auotac priced at $79.99 and the CORSAIR RM650 at $138.31, the Auotac is about 43% cheaper. This significant price difference can be a deciding factor for budget-conscious consumers. The cost savings of the Auotac do not compromise its quality or features, making it a compelling option for those looking to build a powerful yet cost-effective system.

Which should you buy?

Choosing between the Auotac 850W and the CORSAIR RM650 ultimately depends on your specific needs and budget. The Auotac offers excellent value with its lower price, high efficiency, and additional features like the tool kit, making it ideal for budget-conscious users or first-time builders. However, if silent operation under load and a longer warranty are higher priorities for you, the CORSAIR RM650 could be worth the extra investment. Both power supplies deliver quality performance, so consider your requirements carefully before making a decision.