CORSAIR RM850e vs CORSAIR HX1500i

Introduction to the Corsair RM850e and Corsair HX1500i

The Corsair RM850e and Corsair HX1500i are two high-quality power supplies from the renowned brand Corsair, appealing to different segments of PC builders. The RM850e retails at £85.99, while the HX1500i is priced significantly higher at £229.00. This price difference suggests that the HX1500i may offer enhanced features or capabilities, but does it justify the extra cost?

Modular Cabling Features

Both the RM850e and HX1500i come equipped with fully modular cabling, allowing users to connect only the cables necessary for their specific builds. This feature simplifies the installation process and promotes a cleaner, more organised interior. The RM850e focuses on reliability and efficiency, while the HX1500i enhances user experience with its powerful CORSAIR iCUE software, enabling the creation of custom fan curves and real-time monitoring of power settings. This software integration could be a deciding factor for users who value customisation and control over their system.

Power Standard Compliance

Both power supplies are compliant with the Intel ATX 3.1 power standard, which is essential for supporting the latest PCIe Gen 5 platforms. This compliance ensures that both models can handle transient power spikes effectively. The RM850e is designed to withstand 2x transient power excursions from GPUs, while the HX1500i also boasts this capability, making them both suitable for high-performance gaming and demanding applications. However, the HX1500i's ability to toggle between single and multi-rail overcurrent protection (OCP) on-the-fly adds a layer of flexibility for advanced users.

Fan Technology and Noise Levels

The RM850e features a 120mm rifle bearing fan that is calculated to maintain low noise levels, even under full load. This design ensures a quieter operation, which can be crucial for gamers and professionals who require a serene working environment. In contrast, the HX1500i is equipped with a 140mm Fluid Dynamic Bearing (FDB) fan, known for its durability and quiet performance. Additionally, the HX1500i includes a Zero RPM Fan Mode that completely shuts off the fan at low and medium loads, guaranteeing near-silent operation during less intensive tasks. This feature may appeal to users who are sensitive to noise.

Capacitor Quality and Performance

The RM850e utilises 105°C-rated capacitors, which deliver steady and reliable power while ensuring dependable electrical performance. This quality is crucial for maintaining system stability, particularly during heavy usage. The HX1500i also adheres to high standards, supporting the same temperature ratings and ensuring it can withstand demanding workloads without compromising performance. Both power supplies are built to last, but the HX1500i's advanced features may provide additional peace of mind for users who push their systems to the limits.

Efficiency and Standby Compatibility

Efficiency is a vital consideration for power supplies, and both the RM850e and HX1500i excel in this area. The RM850e features modern standby compatibility, promoting extremely fast wake-from-sleep times and enhanced low-load efficiency. This is particularly beneficial for users who frequently put their systems to sleep. While the HX1500i does not specifically mention this feature, its advanced design and capabilities suggest it maintains a strong emphasis on efficiency, particularly with its ability to manage power settings through iCUE software.

Price Considerations

Price is a significant differentiator between these two models, with the RM850e priced at £85.99 and the HX1500i at £229.00. This £143.01 difference indicates that the HX1500i offers additional features, such as the iCUE software and Zero RPM Fan Mode, which may not be necessary for all users. While the RM850e provides excellent value for its price, the HX1500i targets enthusiasts who require advanced functionality and are willing to pay for it. Users must assess their needs carefully to determine if the additional investment in the HX1500i is justified.

Which should you buy?

Ultimately, the choice between the Corsair RM850e and the Corsair HX1500i depends on your specific needs and budget. The RM850e offers excellent performance and reliability at a more accessible price point, making it ideal for standard builds or budget-conscious gamers. On the other hand, the HX1500i caters to power users who desire advanced features, customisation, and reduced noise levels, making it worth the higher price for those who will fully utilise its capabilities. Consider your usage patterns and performance requirements to determine which power supply will best serve your system.