Auotac 850W Fully Modular Power Supply, 80+ Gold vs MSI MAG A750BE, Semi-Modular Compact 750W ATX

Power Rating Comparison

When evaluating power supplies, the wattage is a crucial factor, with the Auotac 850W being more powerful than the MSI MAG A750BE's 750W. The Auotac provides an additional 100W, which can be vital for high-performance builds, particularly those with demanding graphics cards or multiple components. This increase in wattage allows for better scalability, offering users the ability to upgrade their systems without immediately needing to replace the power supply.

Efficiency Ratings

In terms of efficiency, the Auotac boasts an 80 PLUS Gold certification, ensuring around 92% efficiency during operation. In contrast, the MSI MAG A750BE is rated at 80 PLUS Bronze, which typically provides about 85% efficiency. This difference means that while both power supplies are efficient, the Auotac outperforms the MSI by approximately 7%, reflecting better energy use and lower electricity costs over time.

Modular Design

The modularity of a power supply can significantly impact cable management and airflow within a PC case. The Auotac features a fully modular design, allowing users to connect only the cables they need, which reduces clutter and enhances airflow. Conversely, the MSI MAG A750BE is semi-modular, meaning some cables are fixed, which could lead to unnecessary cable clutter. This difference can affect the overall aesthetics and cooling performance of the system, making the Auotac a preferable choice for users who prioritize a clean build.

Cooling Solutions

Cooling is essential for maintaining optimal performance in power supplies. The Auotac incorporates a 140mm RGB low-noise smart fan, which is designed to operate quietly while providing superior heat dissipation compared to standard fans. The MSI MAG A750BE, while equipped with a 120mm low-noise fan, may not offer the same cooling efficiency due to its smaller size. The larger fan in the Auotac can help maintain lower temperatures, potentially leading to longer component lifespans.

Protection Features

Both power supplies include various protection features to safeguard components against electrical issues. The Auotac utilizes 105°C-rated Japanese capacitors for enhanced reliability, ensuring stable power delivery even under heavy loads. The MSI MAG A750BE also incorporates industrial-level protections such as Over Voltage Protection (OVP), Over Current Protection (OCP), and Short Circuit Protection (SCP). While both products provide necessary protections, the Auotac's use of high-quality capacitors indicates a focus on quality and longevity.

Warranty and Support

Warranty offerings can indicate the manufacturer's confidence in their product. The Auotac comes with a 10-year limited warranty, which stands out significantly compared to the MSI MAG A750BE's 5-year warranty. This extended coverage not only reflects the durability of the Auotac but also assures users of long-term support and reliability. A longer warranty can be particularly appealing for gamers and professionals who rely heavily on their systems for extended periods.

Price Consideration

The Auotac is currently priced at $79.99, while the MSI MAG A750BE is listed at $69.99. This means that the Auotac is about 14% more expensive than the MSI model. However, the additional features, such as higher wattage, better efficiency, and a longer warranty, may justify the higher price for users who need robust performance and longevity from their power supply.

Which should you buy?

Choosing between the Auotac 850W Fully Modular Power Supply and the MSI MAG A750BE ultimately depends on your specific needs and budget. If you require a higher wattage, superior efficiency, and enhanced modularity, the Auotac is the clear winner, albeit at a higher price. Conversely, if you are looking for a more budget-friendly option and can work with a semi-modular design and lower wattage, the MSI MAG A750BE offers solid performance for its price.