Auotac 850W Fully Modular Power Supply, 80+ Gold vs SAMA White 650W Power Supply - Fully Modular 80

Price Comparison

The Auotac 850W Fully Modular Power Supply is priced at $79.99, while the SAMA White 650W Power Supply costs $62.99. This makes the Auotac power supply about 27% more expensive than the SAMA model. While the higher price of the Auotac may reflect its greater wattage and additional features, budget-conscious consumers may find the SAMA power supply's lower price appealing, especially for mid-range builds or systems that don't require the extra wattage.

Power Output

The Auotac provides a robust 850W of power, making it ideal for high-performance builds that may include multiple GPUs or other power-hungry components. In contrast, the SAMA power supply offers a maximum output of 650W, which is still substantial for most gaming and workstation setups. If you require a power supply that can handle the demands of an RTX 3090 Ti or similar high-end hardware, the Auotac is a more suitable choice due to its higher wattage.

Efficiency Ratings

Both power supplies carry an 80 PLUS Gold certification, ensuring high energy efficiency. The Auotac boasts an efficiency of 92%, while the SAMA achieves up to 91.15% at 50% load. This difference in efficiency is marginal, but it indicates that both products are designed to minimize energy waste and heat output, contributing to stable system performance. For users focused on energy savings, either option will perform well, but the Auotac has a slight edge in efficiency.

Modular Design

Both power supplies feature a fully modular design, allowing users to connect only the cables needed for their systems. The Auotac's dragon-patterned cables can help reduce cable clutter and optimize airflow, which is beneficial for cooling performance. The SAMA also emphasizes streamlined cable management with its flat cables. Ultimately, both designs support neat builds, but the aesthetic detail in the Auotac may appeal more to users who prioritize visual aspects in their setups.

Cooling Solutions

The Auotac comes equipped with a 140mm low-noise fan, which not only enhances cooling capabilities but also operates quietly under load. The fan's silent mode is particularly appealing for users seeking a quieter computing experience. On the other hand, the SAMA White features a 120mm ECO fan with Fluid Dynamic Bearing technology, which ensures efficient cooling and operates at noise levels as low as 20 dB-A. While both cooling solutions are effective, the larger fan in the Auotac may provide better overall heat dissipation.

Warranty and Reliability

The Auotac power supply offers a 10-year limited warranty, a significant commitment to long-term reliability and performance. In comparison, the SAMA power supply includes a 5-year warranty, which, while still respectable, does not match the extensive coverage provided by the Auotac. The longer warranty period of the Auotac may provide users with greater peace of mind regarding its durability and performance over time.

Compatibility with Modern Standards

Both the Auotac and SAMA power supplies are compliant with ATX 3.1 and PCIe 5.1 standards, ensuring they can support the latest high-end graphics cards, including the RTX 30 and 40 series. However, the Auotac's native PCIe 5.1 ports and dual-color 12V-2x6 cable specifically designed for modern GPUs position it as a slightly more future-proof option. This feature is particularly beneficial for users looking to invest in the latest technology without needing to upgrade their power supply in the near future.

Which should you buy?

Choosing between the Auotac 850W Fully Modular Power Supply and the SAMA White 650W Power Supply ultimately depends on your specific needs and budget. If you require higher wattage, enhanced efficiency, and a longer warranty, the Auotac is the superior choice, albeit at a higher price of $79.99. However, for users with less demanding power needs, the SAMA at $62.99 offers excellent value with a fully modular design and solid performance. Consider your system requirements, budget, and preferences in aesthetics and warranty when making your decision.