CORSAIR RM650e vs be quiet! System Power 11 750W Power Supply

Price Comparison

The be quiet! System Power 11 750W Power Supply is priced at £64.99, while the CORSAIR RM650e costs £71.57. This makes the be quiet! option £6.58 cheaper, which may appeal to budget-conscious consumers. Both power supplies offer features aimed at delivering reliable power, but the price difference can be significant for those looking to optimise their spending. Given the substantial capabilities of both units, this price point difference could influence a decision, especially for users who want to stretch their budget for other components.

Power Output

In terms of power output, the be quiet! System Power 11 offers a robust 750W, compared to the 650W provided by the CORSAIR RM650e. This additional 100W capacity means that the be quiet! model can potentially support more demanding components, especially for high-performance gaming or content creation systems. The ability to handle power excursions up to double its rated power further enhances the versatility of the be quiet! unit, making it a strong contender for future-proofing your system. For users with high-end graphics cards, this extra power could be crucial.

Efficiency Ratings

The be quiet! System Power 11 boasts an 80 PLUS Bronze certification, achieving efficiency ratings of up to 90.0%. The CORSAIR RM650e does not specify an efficiency rating in the provided information, but it is Intel ATX 3.1 Certified, which typically indicates decent efficiency. The 80 PLUS Bronze certification means that the be quiet! model effectively minimises wasted energy, translating to lower electricity bills and a reduced environmental impact. Users prioritising energy efficiency may find the be quiet! Power Supply more appealing based on its established rating.

Noise Levels

Both power supplies are designed for low noise operation, important for users seeking a quiet computing experience. The CORSAIR RM650e features a 120mm rifle bearing fan that maintains low noise levels, even under full load. On the other hand, the be quiet! System Power 11 is equipped with a temperature-controlled 120mm fan, known for its quiet performance, which the brand is renowned for. While specific decibel levels are not provided, both units aim to minimise noise, making either a suitable choice for a silent PC build. However, the established reputation of be quiet! might sway users towards its product for noise-sensitive environments.

Modular Design

The CORSAIR RM650e is fully modular, allowing users to connect only the cables required for their system build. This feature not only simplifies installation but also improves airflow within the case, as unnecessary cables can be omitted. Contrarily, the be quiet! System Power 11 does not specify a modular design, which could lead to additional cables that may clutter the case. For those who value a clean build with optimal cable management, the fully modular design of the CORSAIR RM650e is a significant advantage and may influence the decision for users focused on aesthetics or airflow.

Component Protection

Both power supplies come equipped with safety features to protect valuable components within the system. The be quiet! System Power 11 includes protections against overcurrents, over- and undervoltages, overtemperature, short circuits, and overloads, ensuring that users' components are safeguarded under demanding conditions. Meanwhile, the CORSAIR RM650e also incorporates reliable electrical performance due to its 105°C-rated capacitors, enhancing its durability and reliability. While both units offer essential protection, users may appreciate the comprehensive safety measures outlined for the be quiet! model, particularly if they plan to push their systems to the limits.

Build Quality

When it comes to build quality, the CORSAIR RM650e uses 105°C-rated capacitors, which promise steady and reliable power delivery. This build quality is indicative of durability and performance under load. In comparison, while the be quiet! System Power 11 does not specify its capacitor ratings, it does emphasise dependable power delivery for both CPU and GPU under heavy load. Users who prioritise longevity and consistent performance may lean towards the CORSAIR model, particularly because of its specific mention of high-quality components.

Which should you buy?

Choosing between the CORSAIR RM650e and the be quiet! System Power 11 ultimately depends on your specific needs. If budget is your primary concern, the be quiet! model is the more affordable option at £64.99, offering higher wattage and a solid energy efficiency rating. However, if you value modularity, potentially superior build quality, and the assurance of lower noise levels under load, the CORSAIR RM650e at £71.57 may be worth the extra cost. For high-performance builds requiring more power and quieter operation, the be quiet! System Power 11 shines, whereas the CORSAIR model excels in modular design and component quality.