CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - U vs Asus ROG Strix 1200W Platinum PSU

Introduction to Power Supply Units

When choosing a power supply unit (PSU) for your PC, efficiency, performance, and cooling capabilities are paramount. In this comparison, we will examine the CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply and the Asus ROG Strix 1200W Platinum PSU. Each of these units has distinct features and specifications that cater to different user needs and budgets. The CORSAIR model is priced at £44.99, while the Asus unit comes at £179.99, reflecting a significant gap in their pricing and intended usage scenarios.

Efficiency Ratings

The CORSAIR CX650 boasts an 80 PLUS Bronze certification, which guarantees an operational efficiency of up to 88%. This feature is crucial for users seeking to minimise energy costs while ensuring their system runs effectively. In contrast, the Asus ROG Strix PSU is a Platinum-rated unit, indicating even higher efficiency levels, generally above 90%. The enhanced energy efficiency of the Asus model can translate into lower electricity bills and less heat generation, making it a potentially more suitable choice for high-performance gaming rigs that demand more power.

Power Output and Stability

The CORSAIR CX650 provides a reliable continuous power output of 650 watts, sufficient for mid-range gaming setups or general use. In comparison, the Asus ROG Strix delivers an impressive 1200 watts, making it ideal for high-end systems with multiple graphics cards or demanding components. Furthermore, the Asus PSU features GPU-FIRST voltage sensing technology, which enhances voltage delivery by up to 45% to the graphics card. This ensures smoother gameplay and more stable performance, particularly in resource-intensive applications.

Cooling Solutions

Cooling is a critical aspect of any power supply, as it directly affects performance and longevity. The CORSAIR CX650 is equipped with a 120mm thermally controlled low-noise cooling fan, which operates quietly under low loads and ramps up during heavy use. This design helps prevent overheating while maintaining a low noise level. On the other hand, the Asus ROG Strix features large heatsinks that manage to deliver lower temperatures and noise compared to standard designs. Additionally, the dual ball fan bearings in the Asus unit last longer than traditional sleeve bearing designs, enhancing its overall durability.

Build Quality and Design

Both power supplies exhibit solid build quality, but their designs cater to different aesthetics and functionalities. The CORSAIR CX650 features black sleeved cables and a black powder-coated casing, ensuring a sleek appearance that fits well with various PC builds. Its compact 125mm length also makes it compatible with most modern cases. The Asus ROG Strix, designed with gamers in mind, incorporates a more robust internal layout with GaN MOSFET technology, which not only improves efficiency but also contributes to a cooler operation. This advanced design may appeal more to users looking for high-performance components.

Noise Level Considerations

For users sensitive to noise, the CORSAIR CX650 is designed to operate quietly during low loads, with the fan only increasing speed under heavy stress. This low-noise operation is beneficial for users who prefer a quieter computing environment. In contrast, the Asus ROG Strix incorporates 0dB technology, allowing it to run silently during light gaming sessions. This feature ensures that gamers can enjoy their experience without intrusive noise, making the Asus model a strong contender for performance enthusiasts who also value a serene setup.

Price and Value Proposition

The CORSAIR CX650 is priced at £44.99, making it an excellent choice for budget-conscious users who require a reliable power supply for standard applications. In contrast, the Asus ROG Strix is priced at £179.99, reflecting its premium features and higher power output. While the Asus model offers superior performance, the price difference is substantial. Therefore, potential buyers must consider whether the enhanced features justify the investment, particularly if their needs do not require the high wattage and efficiency provided by the Asus unit.

Which should you buy?

In conclusion, choosing between the CORSAIR CX650 and the Asus ROG Strix 1200W Platinum PSU largely depends on your specific requirements and budget. If you are looking for an affordable, efficient power supply for a mid-range setup, the CORSAIR CX650 is a solid option. However, for those seeking high performance, superior efficiency, and quiet operation during intense gaming, the Asus ROG Strix stands out as the better choice—albeit at a significantly higher price. Ultimately, assess your power needs and budget constraints to make the most informed decision.