CORSAIR RM850e vs be quiet! Pure Power 13 M 1000W Power Supply

Price Comparison

The CORSAIR RM850e is priced at £85.99, while the be quiet! Pure Power 13 M 1000W Power Supply comes in at £99.99. This makes the CORSAIR model £14 cheaper than its competitor. Although the price difference might seem marginal, it could be significant for budget-conscious gamers or builders looking to maximise value. With the RM850e offering an 850W output compared to the 1000W output of the be quiet! model, potential buyers should consider their power requirements carefully before making a decision.

Power Output and Efficiency

The CORSAIR RM850e delivers a reliable 850W of power, while the be quiet! Pure Power 13 M provides a robust 1000W. This means that for demanding systems, especially those with high-performance components, the be quiet! option may offer more headroom for future upgrades. Additionally, the be quiet! model is certified 80 PLUS Gold, boasting an impressive efficiency rating of up to 94.4%. This efficiency not only translates to lower energy consumption but also results in less heat generation and quieter operation, making it particularly appealing for users prioritising a silent computing environment.

Modular Design and Cable Management

Both the CORSAIR RM850e and the be quiet! Pure Power 13 M feature fully modular designs, allowing users to connect only the cables necessary for their builds. This modularity simplifies cable management, resulting in a neater case layout and improved airflow. However, the be quiet! model highlights its native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards, along with four PCIe 6+2-pin connectors for current-generation GPUs. This versatility makes the be quiet! power supply a strong contender for users looking to build powerful systems with the latest technology.

Noise Levels and Thermal Performance

The CORSAIR RM850e operates quietly thanks to its 120mm rifle bearing fan, designed to minimise noise even under full load. On the other hand, the be quiet! Pure Power 13 M takes noise reduction a step further by featuring a fan that completely turns off under low load conditions, ensuring silent operation during less demanding tasks. This combined with its airflow-optimised fan blades results in exceptionally quiet performance across all load scenarios. Users who prioritise silence in their builds may find the be quiet! model more suited to their needs.

Component Compatibility

Both power supplies are compliant with the ATX 3.1 power standard, crucial for modern builds. The CORSAIR RM850e supports PCIe 5.1 and can handle transient power excursions from GPUs, making it suitable for high-performance graphics cards. Meanwhile, the be quiet! Pure Power 13 M not only supports current-gen GPUs but also features the essential connectors for next-generation graphics cards, offering greater versatility for future-proofing. This ensures that users investing in newer technologies will find the be quiet! model more accommodating.

Cooling and Efficiency Features

The CORSAIR RM850e employs a fan curve designed to maintain low noise levels even under load, while its 105°C-rated capacitors ensure reliable power delivery and performance. Conversely, the be quiet! Pure Power 13 M excels with its LLC topology, offering best-in-class voltage regulation and efficiency. This ensures that any power excursions are managed effectively, supporting high-demand components without issue. Both power supplies are designed for efficiency, but the be quiet! model may have the edge with its superior thermal management features.

Brand Reputation and Customer Support

Both Corsair and be quiet! are reputable brands in the PC hardware market, known for their quality and reliability. Corsair has a long-standing history of producing high-performance components, while be quiet! focuses heavily on silent operation and efficiency. Customer support can vary by region, but both companies typically provide good service and warranty options. Choosing between these brands may come down to personal preference and past experiences with their products.

Which should you buy?

When deciding between the CORSAIR RM850e and the be quiet! Pure Power 13 M, consider your specific needs. If you require a cost-effective solution with sufficient power for most gaming setups, the CORSAIR RM850e at £85.99 is an excellent choice. However, for those needing more power and prioritising efficiency and silent operation, the be quiet! Pure Power 13 M, priced at £99.99, offers superior features that may justify the higher cost. Ultimately, your decision should align with your system requirements and personal preferences regarding noise and efficiency.