be quiet! Pure Power 12 650W PSU | 80 Plus Gold | vs CORSAIR RM850e Fully Modular Low-Noise ATX Power

Price Comparison

The be quiet! Pure Power 12 650W PSU is priced at $64.90, making it about 17% cheaper than the CORSAIR RM850e, which retails for $94.99. This price difference may influence budget-conscious consumers looking for reliable power supply options. Both products offer quality performance; however, the lower price point of the be quiet! model makes it an attractive option for those who need a cost-effective solution without compromising on essential features.

Efficiency Ratings

In terms of efficiency, the be quiet! Pure Power 12 boasts an 80 PLUS Gold certification, achieving up to 92.7% efficiency. On the other hand, the CORSAIR RM850e also claims Cybenetics Gold efficiency, but specific efficiency percentages are not provided in the data. The clear advantage here goes to the be quiet! model, as its efficiency rating directly contributes to reduced power consumption and heat generation, making it a better choice for environmentally conscious users.

Noise Levels

Noise levels are crucial for many users, especially in quiet PC builds. The be quiet! Pure Power 12 is designed with a temperature-controlled 120mm fan that optimizes cooling while ensuring near-silent operation. Conversely, the CORSAIR RM850e features a 120mm rifle bearing fan that also aims for low noise during operation. While both products prioritize quiet performance, the be quiet! model emphasizes silent operation as a standout feature, potentially making it a better choice for noise-sensitive environments.

Cooling Performance

Both power supplies offer effective cooling solutions, but they approach the task differently. The be quiet! Pure Power 12 uses airflow-optimized fan blades that reduce turbulence, enhancing its quiet functionality. Meanwhile, the CORSAIR RM850e has a specially calculated fan curve designed to keep noise levels down, even under full load. While both power supplies provide reliable cooling, the be quiet! model’s focus on minimizing turbulence may offer a slight edge in maintaining a quieter system overall.

Compatibility and Future-Proofing

When it comes to compatibility, the be quiet! Pure Power 12 is fully compliant with ATX 3.1 standards and features native integration for PCIe 5.1 graphics cards, along with 2 PCIe 6+2-pin connectors. The CORSAIR RM850e also meets ATX 3.1 and PCIe 5.1 compliance, with a native 12V-2x6 connector that supports modern GPUs. Both models are designed to accommodate current and next-gen components, making them suitable for future upgrades. However, the broader connector options on the be quiet! model may provide an advantage for users looking to build or upgrade their systems extensively.

Build Quality and Components

In terms of build quality, the CORSAIR RM850e features industrial-grade, 105°C-rated capacitors, which ensure reliable performance under varying loads. The be quiet! Pure Power 12 also emphasizes high performance with its LLC topology, which provides excellent voltage regulation. Both power supplies use quality components to deliver steady power, but the specific mention of 105°C-rated capacitors in the CORSAIR model might appeal to users looking for durability and reliability in their power supply during intensive tasks.

Warranty and Support

Warranties can be a significant factor in decision-making. The be quiet! Pure Power 12 comes with a generous 10-year warranty, reflecting the brand’s confidence in its product's longevity and reliability. In comparison, the CORSAIR RM850e offers a 7-year warranty. The longer warranty period of the be quiet! model gives consumers added peace of mind, suggesting that it may be a more reliable long-term investment for users who plan to keep their systems for many years.

Which should you buy?

Deciding between the be quiet! Pure Power 12 650W PSU and the CORSAIR RM850e ultimately hinges on your specific needs and budget. If you prioritize cost-effectiveness, efficiency, and silent operation, the be quiet! model, priced at $64.90 with a 10-year warranty, stands out as an excellent choice. Alternatively, if you seek a power supply with robust build quality and modular flexibility, the CORSAIR RM850e, although more expensive at $94.99, offers notable features that may justify the higher cost. Consider your system requirements and preferences, and choose the product that aligns best with your PC building goals.