CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - N vs Redragon RGPS-850W 80+ Gold 850 Watt Power Supply w/Upgraded ATX 3.1 & PCIe 5.1

Overview of Power Supplies

When it comes to choosing a power supply for your PC, efficiency, performance, and reliability are crucial factors. In this comparison, we will look at the CORSAIR CX550 and the Redragon RGPS-850W, two distinct power supplies that cater to different user needs. The CORSAIR CX550 is priced at C$84.99, while the Redragon RGPS-850W is significantly higher at C$154.99. This price difference reflects not only the wattage but also the features and certifications each unit offers.

Efficiency Ratings

Efficiency ratings are a key aspect of power supplies, as they indicate how well a unit converts AC power from the wall into DC power for your components. The CORSAIR CX550 is certified with an 80 PLUS Bronze rating, which guarantees up to 88% operational efficiency. On the other hand, the Redragon RGPS-850W boasts an 80 PLUS Gold certification, providing even higher efficiency, which translates to cooler operation, lower energy costs, and reduced noise. This difference in efficiency ratings may influence your decision, especially if energy consumption is a concern.

Wattage and Performance

Wattage is another critical factor when evaluating power supplies. The CORSAIR CX550 provides a solid 550 watts, making it well-suited for mid-range builds. Conversely, the Redragon RGPS-850W offers a substantial 850 watts, which caters to high-performance systems, particularly those with powerful graphics cards like the NVIDIA RTX 40 series. If you plan on running demanding applications or multiple GPUs, the Redragon RGPS-850W's higher wattage can provide the necessary headroom for optimal performance.

Cooling Solutions

Cooling is essential for maintaining the longevity and reliability of your power supply. The CORSAIR CX550 features a 120mm thermally controlled low-noise cooling fan that adjusts its speed based on load, ensuring quiet operation during less demanding tasks. Meanwhile, the Redragon RGPS-850W includes a Zero RPM Mode fan that operates silently until the temperature reaches 60℃. This advanced cooling solution not only ensures quieter performance but also allows for better energy efficiency. Users who prioritise quiet operation may find the Redragon RGPS-850W to be a more appealing choice.

Build Quality and Reliability

The build quality of a power supply can significantly impact its reliability and performance over time. The CORSAIR CX550 is constructed to deliver its full rated wattage continuously, and it comes with a three-year warranty, giving users confidence in its durability. In contrast, the Redragon RGPS-850W is built with 100% Japanese capacitors, known for their reliability and stability. This power supply also features a mainstream LLC resonant + DC-DC structure, which further enhances its performance and reliability. For those seeking a power supply that can endure high loads, the Redragon RGPS-850W stands out for its robust build quality.

Size and Compatibility

The physical dimensions of a power supply are important for compatibility with your PC case. The CORSAIR CX550 has a compact size of 125mm in length, allowing it to fit into most modern chassis without issues. The Redragon RGPS-850W, while slightly larger at 160mm, is still designed to fit a wide range of cases and offers improved cable management options. If space is a concern, the CORSAIR CX550 may be the better choice; however, the Redragon RGPS-850W’s size does not greatly hinder its compatibility.

Aesthetic Features

Aesthetic appeal can be an important consideration for many PC builders. The CORSAIR CX550 features black sleeved cables and a black powder-coated casing, providing a sleek and professional look that blends well with most builds. In contrast, the Redragon RGPS-850W enhances its visual appeal with up to nine RGB modes and 26 selected colours, allowing users to customise their setup's lighting to match their personal style. For those who value aesthetics alongside functionality, the Redragon RGPS-850W offers a more vibrant option.

Which should you buy?

Deciding between the CORSAIR CX550 and the Redragon RGPS-850W ultimately depends on your specific needs and budget. If you are looking for a reliable, efficient, and cost-effective power supply for a mid-range build, the CORSAIR CX550 at C$84.99 is an excellent choice. However, if you require a high-performance power supply with greater wattage, advanced cooling features, and superior efficiency, the Redragon RGPS-850W at C$154.99 may be worth the investment. Consider your power requirements, aesthetic preferences, and budget when making your final decision.