ASRock PRO-650G Power Supply - 650W 80 Plus Gold vs CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX

Price Comparison

When comparing prices, the ASRock PRO-650G is about 24% cheaper than the CORSAIR CX550, priced at $49.99 versus $65.99. This significant price difference may influence buyers looking for budget-friendly options without sacrificing performance. While the ASRock offers a reliable 650W output, the CORSAIR, though more expensive, delivers a continuous 550W. The choice here may hinge on whether you prioritize upfront cost or brand reputation.

Efficiency Ratings

In terms of energy efficiency, the ASRock PRO-650G has a distinct advantage with its 80 PLUS Gold certification, achieving up to 90% efficiency. In contrast, the CORSAIR CX550 is 80 PLUS Bronze certified, providing up to 88% operational efficiency. This 2% difference in efficiency might seem small, but it can lead to noticeable savings on your energy bill over time, especially in a high-performance build.

Power Output

Power output is another critical consideration. The ASRock PRO-650G delivers a robust 650W with a stable 54.1A on the +12V rail, making it suitable for mid-range gaming systems and demanding applications. Conversely, the CORSAIR CX550 provides 550W of full continuous power, which may suffice for less demanding builds but could limit future upgrades. For users planning to expand their systems, the higher output of the ASRock ensures more headroom for additional components.

Cooling Solutions

Cooling capabilities differ between the two power supplies. The ASRock PRO-650G features a 120mm fan designed for low noise levels while ensuring adequate cooling during operation. The CORSAIR CX550 also utilizes a 120mm thermally controlled fan that adjusts speed based on load, prioritizing quiet operation under low-stress conditions. Both solutions aim to maintain a chill environment, but the ASRock's fan design is tailored for consistent performance under heavier loads.

Build Quality and Components

The ASRock PRO-650G is constructed with all-Taiwanese capacitors, which are known for their durability and longevity. This quality component choice can translate to a longer lifespan for the power supply. On the other hand, while the CORSAIR CX550 is reputable for its reliability, specific details about its internal components are less emphasized. The focus on Taiwanese capacitors in the ASRock may appeal to those who prioritize long-term investment in their hardware.

Design and Aesthetics

Aesthetically, the CORSAIR CX550 features a sleek black sleeved cable design and a compact casing of 125mm, making it visually appealing and easy to integrate into various PC builds. The ASRock PRO-650G also boasts a flat cable design that enhances airflow and simplifies cable management but does not emphasize aesthetics as much as the CORSAIR. For users who appreciate a visually cohesive build, the CX550 may have the edge.

Warranty and Support

Both power supplies come with a standard 3-year warranty, offering peace of mind to consumers. However, the ASRock provides dedicated support through Amazon for product inquiries, which can be a significant asset for less experienced builders. While the CORSAIR also promises dependable support from its global technical team, the direct access to ASRock's assistance might appeal more to those needing hands-on guidance.

Which should you buy?

Choosing between the ASRock PRO-650G and the CORSAIR CX550 ultimately depends on your specific needs and preferences. If you're looking for a cost-effective solution with superior efficiency and power output, the ASRock PRO-650G at $49.99 stands out as the better choice. However, if aesthetics and brand loyalty are more important to you, and you're willing to spend $65.99, the CORSAIR CX550 offers solid performance in a stylish package. Each product has its strengths, so your decision should align with your priorities in building or upgrading your PC.