Cooler Master V850 SFX Gold 850W Fully Modular vs CORSAIR RM850x Fully Modular Low-Noise ATX Power

Overview of the Products

In this comparison, we pit the Cooler Master V850 SFX Gold against the CORSAIR RM850x. Both power supplies deliver excellent performance, but they cater to slightly different needs. The Cooler Master V850 SFX Gold is priced at $153.25, while the CORSAIR RM850x is slightly more expensive at $161.93, making it about 5.6% pricier. This difference in price reflects their respective features, design, and intended use cases.

Design and Form Factor

The Cooler Master V850 SFX Gold boasts a compact SFX form factor, making it ideal for small form factor builds, such as mini-ITX cases. Its design includes a 90° angled cable for improved durability and reduced clutter. On the other hand, the CORSAIR RM850x follows a standard ATX form factor, which fits into larger cases more comfortably. The choice between the two largely depends on the user's case size. If you have a mini-ITX setup, the Cooler Master is clearly the better choice, while the RM850x suits standard ATX setups.

Efficiency Ratings

Efficiency is a crucial factor when selecting a power supply, and both units perform admirably. The Cooler Master V850 SFX Gold is rated for 80 Plus Gold efficiency, meaning it operates at around 90% efficiency under typical loads. Meanwhile, the CORSAIR RM850x takes it a step further with Cybenetics Gold certification, boasting up to 91% efficiency. This marginal difference in efficiency could lead to lower energy costs over time with the RM850x, particularly for users who run their systems continuously.

Modularity and Cable Management

Both power supplies are fully modular, allowing users to connect only the cables needed for their systems. The Cooler Master V850 SFX Gold features customized cable lengths, reducing clutter even further. The RM850x, with its ultra-flexible embossed cables, also simplifies installation and enhances the aesthetic appeal of any build. The modularity in both products ensures better airflow and easier cable management, but the unique design of the Cooler Master's cables might offer an edge in compact builds.

Cooling Solutions

Cooling is critical for maintaining performance and longevity in power supplies. The Cooler Master V850 SFX Gold utilizes a 92mm Fluid Dynamic Bearing (FDB) fan, which provides efficient cooling while minimizing noise. Conversely, the CORSAIR RM850x is equipped with a larger 140mm FDB fan, allowing for quieter operation and improved airflow. For users prioritizing noise levels in larger builds, the RM850x may be the better option, while the Cooler Master still delivers reliable cooling in a compact package.

Compatibility and Connectivity

When it comes to compatibility, the Cooler Master V850 SFX Gold supports ATX 3.1 and PCIe 5.1, making it suitable for modern graphics cards. Its 90° connector improves electrical durability, which is a significant advantage for compact builds. The CORSAIR RM850x also supports ATX 3.1 and PCIe 5.1, featuring a native 12V-2x6 connector that ensures a direct connection without the need for adapters. Both power supplies are highly compatible, but the native connector in the RM850x offers a slight convenience for users with the latest GPUs.

Warranty and Reliability

Both the Cooler Master V850 SFX Gold and the CORSAIR RM850x come with a generous 10-year warranty, underscoring the reliability and quality of these power supplies. This extended warranty period reflects the manufacturers' confidence in their products and provides peace of mind for consumers. While neither unit has a clear advantage in warranty length, the brand reputation may influence buyer decisions, with Corsair often recognized for its reliability in the gaming community.

Price Comparison

The Cooler Master V850 SFX Gold is priced at $153.25, making it approximately $8.68 cheaper than the CORSAIR RM850x, which retails for $161.93. This price difference of about 5.6% might be a deciding factor for budget-conscious users. However, the additional features and slight efficiency improvement of the RM850x may justify its higher price for some consumers, particularly those building high-performance systems.

Which should you buy?

Ultimately, the choice between the Cooler Master V850 SFX Gold and the CORSAIR RM850x depends on your specific needs and system requirements. If you require a compact power supply for a mini-ITX build, the Cooler Master V850 SFX Gold is an excellent choice due to its smaller size and customized cable lengths. However, if you’re building a larger ATX system and prioritize slightly higher efficiency, quieter operation, and a native connector for the latest graphics cards, the CORSAIR RM850x justifies its higher price. Both power supplies offer exceptional quality, but understanding your build's requirements will guide you to the right decision.