Auotac 850W Fully Modular Power Supply, 80+ Gold vs CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX

Overview of the Products

When comparing power supplies, the Auotac 850W Fully Modular Power Supply and the CORSAIR CX550 80 Plus Bronze Non Modular Power Supply stand out in their respective categories. The Auotac offers a higher wattage and modular design, while the Corsair is known for its compact form and efficient performance. The Auotac is priced at $79.99, while the Corsair is available for $65.99, making the Corsair about 17% cheaper.

Efficiency and Certification

Efficiency is a critical factor in power supply performance, and the Auotac boasts an 80 PLUS Gold certification, ensuring up to 92% efficiency. This level of efficiency indicates that it wastes less energy as heat, leading to lower electricity costs and better performance. In contrast, the CORSAIR CX550 is certified at the 80 PLUS Bronze level, offering up to 88% efficiency. While both power supplies provide solid performance, the Auotac's higher certification suggests it will be more efficient in the long run.

Modularity and Cable Management

The modular design of the Auotac allows users to connect only the cables they need, which helps reduce clutter and improve airflow within the PC case. This feature is particularly beneficial for gamers and PC builders who prioritize aesthetics and cooling. On the other hand, the CORSAIR CX550 is a non-modular power supply, meaning all cables are permanently attached. While it may simplify installation, it lacks the flexibility and cleanliness provided by the Auotac's fully modular design.

Cooling Solutions

Cooling is essential for maintaining optimal performance, especially during high-demand tasks. The Auotac features a 140mm RGB low-noise smart fan that operates quietly and efficiently, outperforming standard 120mm fans. It also includes an ARGB lighting model, allowing for customizable aesthetics. The CORSAIR CX550, while having a smaller 120mm thermally controlled fan, adjusts its speed based on the load—spinning faster under heavy use and slowing down during lighter loads. Both cooling solutions are designed to reduce noise, but the Auotac offers a more advanced cooling system with added visual flair.

Compatibility and Future-Proofing

The Auotac power supply is ATX 3.1 and PCIe 5.1 ready, making it suitable for modern high-performance components. This compatibility means it can support the latest graphics cards and is built to handle transient power spikes, which is vital for gamers and content creators. Conversely, the CORSAIR CX550 is a reliable option but lacks the latest PCIe 5.1 support, potentially limiting its future-proofing for users planning to upgrade their systems.

Capacitor Quality and Reliability

Capacitor quality can significantly impact the longevity and reliability of a power supply. The Auotac uses 100% Japanese-made 105°C rated capacitors, which are known for their high reliability and durability. This quality ensures consistent performance even under demanding conditions. The CORSAIR CX550 also delivers reliable power but does not specify the capacitor quality, focusing instead on its capability to provide full continuous power. The superior capacitor choice in the Auotac suggests it may offer better long-term stability.

Price Consideration

Price is always a significant factor when choosing electronic components. The Auotac is priced at $79.99, while the CORSAIR CX550 is available for $65.99. This makes the Auotac approximately $14 more expensive. However, considering the features such as higher wattage, better efficiency, and modular design, many users might find the additional cost justifiable for the enhanced performance and flexibility provided by the Auotac.

Which should you buy?

Choosing between the Auotac 850W Fully Modular Power Supply and the CORSAIR CX550 80 Plus Bronze Non Modular Power Supply ultimately depends on your specific needs. If you prioritize efficiency, modularity, and future-proofing for high-performance components, the Auotac is the better choice despite its higher price. However, if you are looking for a budget-friendly option that still delivers reliable performance for a standard build, the CORSAIR CX550 is a solid pick. Ultimately, both power supplies have their strengths, catering to different types of users in the competitive power supply market.