Asus ROG Strix 1200W Platinum PSU vs be quiet! System Power 11 750W Power Supply

Price Comparison

When it comes to price, the be quiet! System Power 11 750W Power Supply is significantly more affordable at £64.99 compared to the Asus ROG Strix 1200W Platinum PSU, which is priced at £179.99. The price difference of £115 highlights the distinct market positioning of these two power supplies. While the Asus model offers higher wattage and advanced features, the be quiet! option provides solid performance at a fraction of the cost, making it a compelling choice for budget-conscious consumers.

Power Output

The Asus ROG Strix 1200W Platinum PSU boasts a substantial 1200W output, ideal for high-performance systems requiring robust power delivery, especially for gaming rigs with demanding graphics cards. In contrast, the be quiet! System Power 11 offers a maximum output of 750W, which is sufficient for many mid-range builds. This difference in wattage, a notable 450W, indicates that the Asus model is better suited for users who plan to run multiple high-end components or overclock their systems.

Efficiency Ratings

Efficiency is a critical factor in power supplies, and the Asus ROG Strix 1200W Platinum PSU excels with its Platinum rating, ensuring superior power efficiency. Although the specific efficiency percentage isn't stated, Platinum-rated PSUs generally exceed 90% efficiency. The be quiet! System Power 11 achieves an 80 PLUS Bronze certification, boasting an efficiency of up to 90.0%. This means while the be quiet! model offers decent efficiency, the Asus power supply is likely to provide better energy savings over time, particularly under heavy loads.

Noise Levels

In terms of noise levels, the Asus ROG Strix 1200W Platinum PSU features dual ball fan bearings which allow for quieter operation and increased longevity, alongside its 0dB technology that enables silent gaming during low-load scenarios. Conversely, the be quiet! System Power 11 is designed with a temperature-controlled 120mm fan, which is known for delivering low noise operation, aligning with the brand's reputation for quiet performance. While both models aim to minimise noise, the Asus unit offers enhanced features for achieving near-silent operation.

Design and Build Quality

The design and build quality of a power supply can greatly influence its performance and reliability. The Asus ROG Strix 1200W Platinum PSU features large ROG heatsinks that cover critical components, promoting lower temperatures and reduced noise compared to typical reference designs. This emphasis on cooling is crucial for maintaining operational efficiency. The be quiet! System Power 11, while not specifically highlighted for its cooling design, is built to handle power excursions up to double its rated power, indicating robust build quality. However, the advanced thermal management of the Asus unit gives it an edge in maintaining performance.

Compatibility

Compatibility is vital for a power supply, especially for gaming and high-performance systems. The Asus ROG Strix 1200W Platinum PSU is designed with "GPU-FIRST" voltage sensing technology, enhancing voltage delivery to graphics cards by up to 45%, which is particularly advantageous for gamers seeking optimal performance. On the other hand, the be quiet! System Power 11 comes with native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards, alongside traditional PCIe 6+2-pin connectors. This versatility makes the be quiet! model suitable for current and future systems, although the Asus model appears to have a slight edge in voltage delivery efficiency.

Safety Features

Safety features in a power supply are essential for protecting valuable components. The be quiet! System Power 11 includes various safety protections against overcurrents, over- and undervoltages, overtemperature, short circuits, and overloads. These features are designed to safeguard your system under all conditions. While the Asus ROG Strix 1200W Platinum PSU does not explicitly list safety features, its advanced design and high-quality components imply a commitment to reliability and safety as well. However, the explicit mention of safety features in the be quiet! model gives it a clear advantage in this category.

Which should you buy?

Choosing between the Asus ROG Strix 1200W Platinum PSU and the be quiet! System Power 11 750W Power Supply ultimately hinges on your specific needs and budget. If you're seeking a high-performance power supply for a demanding gaming setup and are willing to invest £179.99 for superior efficiency, thermal management, and power delivery, the Asus is the clear winner. However, if you're on a tighter budget and require a reliable, quieter option for a mid-range system, the be quiet! model at £64.99 offers excellent value without compromising on essential features.