Auotac 850W Fully Modular Power Supply, 80+ Gold vs Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &

Overview of the Auotac 850W and Thermaltake Smart BM3 750W

The Auotac 850W Fully Modular Power Supply is priced at $79.99, while the Thermaltake Smart BM3 750W is slightly less expensive at $75.99. The Auotac model provides a higher wattage, making it potentially more suitable for high-performance builds, especially if you're running multiple components that require more power. Meanwhile, the Thermaltake Smart BM3 is designed to meet the needs of users looking for a balance between cost and performance, with its 750W capacity and 80Plus Bronze certification.

Efficiency Ratings

The Auotac 850W boasts an impressive 80 PLUS Gold certification, indicating it achieves about 92% power efficiency. This high efficiency means less wasted energy and lower electricity bills over time. In contrast, the Thermaltake Smart BM3 is rated at 80 PLUS Bronze, which translates to approximately 85% efficiency. While both units are efficient, the Auotac has a definitive edge in delivering better power efficiency, making it a more appealing option for energy-conscious consumers.

Modular Design

The Auotac 850W features a fully modular design, allowing users to connect only the cables they need. This not only reduces cable clutter but also improves airflow within the case. The Thermaltake Smart BM3, however, is semi-modular, meaning some cables are permanently attached while others can be added as needed. This distinction can affect cable management and overall aesthetics, with the Auotac offering a more customizable setup for users who prioritize a clean build.

Cooling Solutions

Cooling is essential in maintaining performance and longevity in power supplies. The Auotac 850W is equipped with a 140mm low-noise RGB fan, which is designed to provide optimal cooling while remaining quiet. It also features RGB lighting for those who enjoy visual customization. The Thermaltake Smart BM3 utilizes a 120mm fluid dynamic bearing fan, which incorporates a Smart Zero Fan function that prevents the fan from spinning until the load exceeds 20%. This feature minimizes noise during low loads, appealing to users seeking quieter operations, although it may not cool as effectively under high loads compared to the Auotac.

Capacitor Quality

The Auotac 850W is built with high-quality 105°C Japanese capacitors, ensuring reliability and stability during demanding tasks. This is a significant advantage for gamers and professionals who require a stable power supply under heavy loads. Conversely, the Thermaltake Smart BM3 also utilizes Japanese 105°C capacitors but is rated for a lower overall performance compared to the Auotac. The emphasis on capacitor quality in both models indicates a commitment to durability, but the Auotac’s higher wattage may provide a performance edge in high-stress situations.

Warranty and Support

In terms of warranty, the Auotac 850W comes with a generous 10-year limited warranty, reflecting the manufacturer's confidence in its durability and performance. On the other hand, the Thermaltake Smart BM3 offers a 5-year warranty, which is still respectable but may not instill the same level of confidence for long-term use as the Auotac. A longer warranty often indicates that the manufacturer stands behind their product, suggesting potential longevity and reliability for users.

Price Comparison

The Auotac 850W is currently priced at $79.99, while the Thermaltake Smart BM3 is available for $75.99, making the Auotac about 4% more expensive. This slight price difference may be justified by the additional features and power capacity of the Auotac. However, for budget-conscious buyers, the Thermaltake offers a more economical choice while still delivering solid performance and modern features.

Which should you buy?

Ultimately, the decision between the Auotac 850W and the Thermaltake Smart BM3 comes down to your specific needs. If you require higher wattage and superior efficiency, the Auotac 850W is the clear winner with its 80 PLUS Gold certification, fully modular design, and extended warranty. However, if you're looking for a more budget-friendly option that still meets modern standards, the Thermaltake Smart BM3 is a solid choice with its semi-modular setup and lower price point. Assess your power needs and budget carefully to make the best choice for your build.