CORSAIR RM850e Fully Modular Low-Noise ATX Power vs CORSAIR RM850x Fully Modular Low-Noise ATX Power

Overview of the Products

The CORSAIR RM850e and the CORSAIR RM850x are both high-quality power supplies designed for modern PCs, but they cater to slightly different needs and budgets. The RM850e is priced at $94.99, making it about 17% cheaper than the RM850x, which retails for $161.93. Both power supplies are fully modular, ensuring ease of installation by allowing users to connect only the cables necessary for their configurations.

The RM850e is built to comply with the latest ATX 3.1 and PCIe 5.1 standards, making it a solid choice for users looking to power the latest graphics cards. Meanwhile, the RM850x also meets these standards and features some enhancements that may appeal to those seeking a premium experience.

Design and Build Quality

Both power supplies feature a fully modular design, which allows for a more organized and efficient cable management system. The RM850e has a simple yet effective design, with a focus on low noise during operation. The 120mm rifle bearing fan ensures that noise levels remain minimal, even under full load.

In contrast, the RM850x boasts ultra-flexible embossed cables that not only simplify installation but also enhance the aesthetic appeal of your build. The cables come equipped with low-profile combs, which help in achieving a tidy look. While both units have a robust build quality, the RM850x takes the edge in terms of design elegance.

Efficiency Ratings

When it comes to efficiency, both power supplies are rated with Cybenetics Gold certification, ensuring high performance and lower energy consumption. The RM850e delivers reliable power with impressive efficiency, while the RM850x is rated for up to 91% efficiency, which is a significant advantage for users concerned about energy costs and thermal performance.

The RM850x's superior efficiency not only translates into lower power bills but also contributes to cooler system temperatures, which can enhance the longevity of your components. Thus, while both options are efficient, the RM850x stands out with its slightly higher efficiency rating.

Compatibility Features

The compatibility features of both models are impressive, with both supporting the latest standards in power supply technology. The RM850e includes a native 12V-2x6 connector, making it suitable for current-generation graphics cards without the need for adapters.

Similarly, the RM850x features the same native 12V-2x6 connector alongside its compliance with ATX 3.1 and PCIe 5.1 standards. This ensures that both power supplies can handle transient power spikes effectively. While both are highly compatible, the RM850x may offer a slight edge with its additional focus on providing a direct GPU to PSU connection.

Cooling Solutions

Cooling is crucial in maintaining the reliability and performance of power supplies. The RM850e is equipped with a 120mm rifle bearing fan, which operates quietly, making it an excellent choice for users who are sensitive to noise.

On the other hand, the RM850x features a 140mm fluid dynamic bearing (FDB) fan, which tends to run quieter and more efficiently under load. The larger fan size allows for improved airflow, which can reduce temperatures more effectively in high-performance scenarios. Thus, while both units prioritize low noise, the RM850x may excel in cooling efficiency due to its superior fan design.

Warranty and Support

Warranty duration can be a significant factor when considering a power supply unit. The RM850e comes with a seven-year warranty, which is commendable and reflects the manufacturer's confidence in the product's durability.

In contrast, the RM850x offers an even longer ten-year warranty, which provides peace of mind for users investing in a premium power supply. This extended warranty can be particularly appealing to enthusiasts and gamers who plan on using their systems for many years. Therefore, if warranty and longevity are priorities, the RM850x presents a more attractive option.

Price Comparison

Pricing is a crucial aspect of any purchasing decision. The CORSAIR RM850e is priced at $94.99, making it a more budget-friendly option compared to the RM850x, which costs $161.93. This price difference of about $66 may be significant for users who are looking to build a powerful PC without breaking the bank.

However, the additional features and extended warranty of the RM850x may justify the higher price for some users. While the RM850e provides excellent value, particularly for mid-range builds, the RM850x may be worth the investment for those seeking premium performance and reliability.

Which should you buy?

Choosing between the CORSAIR RM850e and the CORSAIR RM850x ultimately depends on your specific needs and budget. If you are looking for an efficient, budget-friendly power supply that still offers great performance, the RM850e is an excellent choice at $94.99. However, if you are willing to invest more for enhanced efficiency, better cooling, and a longer warranty, the RM850x at $161.93 is the superior option. Consider your system requirements and how much you value advanced features when making your decision.