Auotac 850W Fully Modular Power Supply, 80+ Gold vs CORSAIR RM850x Fully Modular Low-Noise ATX Power

Overview of the Auotac 850W and CORSAIR RM850x

The Auotac 850W Fully Modular Power Supply is priced at $79.99, making it approximately 17% cheaper than the CORSAIR RM850x, which retails for $161.93. Both power supplies offer excellent efficiency ratings and modular designs, but they cater to slightly different audiences and needs in the gaming and PC-building community.

The Auotac power supply is 80 PLUS Gold certified, boasting a 92% efficiency rate, while the CORSAIR model has a Cybenetics Gold certification with an efficiency of up to 91%. The Auotac's lower price point may appeal to budget-conscious gamers, while the CORSAIR's established reputation may attract those looking for premium performance and reliability.

Efficiency and Certification Comparison

When it comes to efficiency, the Auotac power supply has a slight edge with its 80 PLUS Gold certification, offering 92% efficiency at typical loads. This means it can convert more power from the wall to your components, reducing waste and potentially lowering your electricity bill over time.

On the other hand, the CORSAIR RM850x, while rated at 91% efficiency, is still an excellent choice that reflects its own Cybenetics Gold certification. Both units are designed to reduce power consumption and heat output, ensuring that your system runs cooler and quieter. However, the Auotac’s higher efficiency rating gives it a small advantage for users prioritizing energy savings.

Build Quality and Components

Build quality is crucial for the longevity and reliability of power supplies. The Auotac 850W is built with 105°C-rated Japanese capacitors, which are known for their durability and reliability, particularly in high-stress gaming environments. This design choice ensures stable performance even under heavy loads.

Conversely, the CORSAIR RM850x also utilizes 100% Japanese 105°C-rated electrolytic capacitors, ensuring excellent electrical performance. The RM850x complements this with a 140mm fluid dynamic bearing fan that provides quiet operation while efficiently cooling the unit. The emphasis on high-quality components in both models signifies that users can expect long-lasting performance.

Modular Design and Cable Management

Both the Auotac 850W and the CORSAIR RM850x feature fully modular designs, allowing users to connect only the cables they need. This design helps eliminate cable clutter and optimizes airflow within the PC case.

The Auotac comes with dragon-patterned cables, which not only look appealing but also facilitate effective cable management. Additionally, it includes an included tool kit that provides a PSU tester and cable management comb, making it an excellent choice for beginners who may need help managing their cables efficiently.

Meanwhile, the CORSAIR RM850x features ultra-flexible embossed cables that enhance aesthetics and installation ease. Users can enjoy a clean look without sacrificing functionality. The modular capabilities of both units ensure that they cater to builders who value a tidy and organized setup.

Noise Levels and Cooling

The Auotac 850W is designed with a 140mm low-noise smart fan that operates quietly, outperforming standard 120mm fans in terms of both sound and cooling efficiency. This characteristic is especially appealing for users who prioritize low noise levels during intense gaming sessions or while working on demanding tasks.

In comparison, the CORSAIR RM850x also prides itself on being a low-noise power supply, featuring a 140mm fan that emphasizes quiet operation while maintaining effective cooling. Both power supplies are engineered to keep noise levels to a minimum, making them suitable for quiet builds. However, the Auotac's specific design for silent operation might give it an edge in ultra-quiet environments.

Compatibility and Future-Proofing

The Auotac 850W is compliant with the ATX 3.1 standard and supports PCIe 5.1, making it ready for the latest high-performance PC components. It includes a dual-color 12V-2x6 native connector that easily indicates whether the GPU cable is plugged in correctly, enhancing user experience and installation confidence.

The CORSAIR RM850x shares this compliance with ATX 3.1 and PCIe 5.1, ensuring that it can handle the latest graphics cards and other demanding hardware. The native 12V-2x6 connector means users won't need additional adapters, simplifying installation. Both power supplies are future-proofed for upcoming technologies, but the Auotac's additional visual indicator may be more user-friendly for some builders.

Warranty and Customer Support

The Auotac 850W comes with a robust 10-year limited warranty, ensuring that users have peace of mind regarding the power supply's longevity and reliability. This extended warranty reflects the manufacturer's confidence in the product's durability, making it a reassuring choice for users seeking long-term reliability.

Similarly, the CORSAIR RM850x is also backed by a 10-year warranty, a standard in the industry for high-quality power supplies. Both brands offer solid support and warranty coverage, but the reputation of Corsair for customer service may provide an added layer of comfort for potential buyers.

Which should you buy?

Choosing between the Auotac 850W and the CORSAIR RM850x ultimately depends on your budget and specific needs. The Auotac offers a competitive price point at $79.99, with high efficiency, excellent build quality, and a user-friendly design that makes it ideal for budget-conscious gamers and DIY builders.

In contrast, the CORSAIR RM850x at $161.93 is a premium option that delivers trusted performance, low noise levels, and ease of installation with its sleek cables. If you're willing to invest more for a well-established brand with a strong reputation, the RM850x is a solid choice.

Ultimately, if cost is a significant factor, the Auotac is about 17% cheaper and still provides great features. However, for those who prioritize brand reputation and slightly superior aesthetics, the CORSAIR RM850x could be worth the extra investment.