Corsair HX1000i Fully Modular Ultra-Low Noise ATX Power Supply - ATX 3.1 & PCIe vs be quiet! System Power 11 750W Power Supply

Price Comparison

The Corsair HX1000i is significantly more expensive than the be quiet! System Power 11, priced at £169.99 compared to £64.99. This represents a price difference of £105, making the HX1000i a premium choice in the power supply market. While the higher price of the Corsair product may be justified by its advanced features and specifications, the be quiet! model provides an excellent budget-friendly option without compromising essential functionality.

Power Output

In terms of power output, the Corsair HX1000i boasts a capacity of 1000 Watts, which surpasses the be quiet! System Power 11’s 750 Watts by a considerable margin. This 33% increase in wattage allows the HX1000i to support more demanding components, making it ideal for high-performance gaming rigs or workstations that require substantial power. Conversely, while the System Power 11’s 750 Watts is sufficient for most mid-range systems, it may limit future upgrades for users intending to install more power-hungry hardware.

Modular Design

The Corsair HX1000i features a fully modular design, allowing users to connect only the cables they need, promoting cleaner builds and better airflow within the case. This flexibility is a standout feature, especially for those who value aesthetics and organisation in their PC builds. On the other hand, the be quiet! System Power 11 does not specify its modularity. While it is still a capable power supply, a less modular design might lead to a messier build, potentially affecting airflow and cooling efficiency.

Fan Technology

The cooling solutions of both power supplies are noteworthy, but they differ in design and performance. The Corsair HX1000i is equipped with a 140mm Fluid Dynamic Bearing fan designed for ultra-low noise operation, which contributes to an overall quieter performance. Additionally, it features a Zero RPM Fan Mode that allows the fan to switch off entirely under low to medium loads, further enhancing its silent operation. Meanwhile, the be quiet! System Power 11 uses a 120mm temperature-controlled fan known for its low noise level. Although it performs well, it may not match the advanced fan technology of the HX1000i, particularly in terms of silence at low loads.

Certification and Efficiency

The Corsair HX1000i is compliant with the ATX 3.1 power standard and is built to resist transient power spikes, ensuring reliability during high-demand scenarios. However, it does not specify an efficiency rating. In contrast, the be quiet! System Power 11 holds an 80 PLUS Bronze certification, indicating an efficiency rating of up to 90%. This certification suggests that the System Power 11 is designed for energy efficiency, providing stable power while reducing energy waste, making it a great choice for cost-conscious users seeking long-term savings on their electricity bills.

Compatibility and Future-Proofing

The Corsair HX1000i supports the latest PCIe Gen 5.1 platform, ensuring compatibility with next-generation graphics cards. This feature makes it an ideal choice for enthusiasts who plan to upgrade their systems to include the latest GPUs. Meanwhile, the be quiet! System Power 11 is also an ATX 3.1 PSU and features native integration of the 12V-2x6 connector, making it compatible with current-gen GPUs. However, while it accommodates future hardware, the lower wattage may limit its appeal for users looking to invest in the most powerful components available.

Brand Reputation and Support

Brand reputation can influence purchasing decisions, and both Corsair and be quiet! are well-respected in the industry. Corsair is known for its high-performance components, particularly in the gaming community, while be quiet! is celebrated for producing extremely quiet and efficient power supplies. The choice between the two brands may hinge on personal preference, but Corsair's premium offerings generally come with a higher expectation of performance and advanced features.

Which should you buy?

Choosing between the Corsair HX1000i and the be quiet! System Power 11 ultimately depends on your specific needs and budget. The Corsair HX1000i, priced at £169.99, is the superior option for those requiring high wattage, silent operation, and advanced features like full modularity and extensive compatibility with the latest technology. Conversely, if you are looking for a more budget-friendly option, the be quiet! System Power 11 at £64.99 offers reliable performance for mid-range systems, with sufficient power for most current applications and decent efficiency. Decide based on your performance needs, future upgrade plans, and budget constraints.