ASRock PRO-650G Power Supply - 650W 80 Plus Gold vs SAMA White 650W Power Supply - Fully Modular 80

Overview of the ASRock PRO-650G and SAMA White Power Supplies

The ASRock PRO-650G Power Supply is priced at $49.99, while the SAMA White Power Supply is available for $62.99. This places the SAMA at about 26% higher than the ASRock. Both power supplies are 650W and 80 Plus Gold certified, making them suitable for efficient energy use. However, they differ significantly in design and features, which could impact your choice based on your specific needs.

Design and Build Quality

The ASRock PRO-650G showcases a flat cable design that enhances airflow and simplifies cable management, making installation cleaner and more organized. Its standard ATX form factor is compatible with most PC cases. In contrast, the SAMA White features a fully modular design, allowing users to connect only the cables necessary for their system. This not only helps with cable management but also further optimizes airflow. The SAMA's flat cables also contribute to a neat build, while both models utilize high-quality capacitors, with ASRock opting for all-Taiwanese and SAMA using premium Japanese capacitors.

Efficiency and Performance

Both the ASRock PRO-650G and SAMA White power supplies are 80 Plus Gold certified, ensuring high energy efficiency. The ASRock model delivers up to 90% energy efficiency, which is excellent for reducing power consumption and heat output. Meanwhile, the SAMA claims an efficiency of up to 91.15% at 50% load, slightly edging out the ASRock. This small difference in efficiency might be noticeable in high-load scenarios, especially in gaming or demanding applications.

Compatibility Features

The ASRock PRO-650G is fully ATX 3.1 compatible, ensuring that it can work seamlessly with modern and next-generation components. It provides a stable 12V output of 54.1A, making it reliable for mid-range gaming and productivity systems. The SAMA White goes a step further with its native PCIe 5.1 ports, making it an excellent choice for high-end GPUs, including the RTX 30 and RTX 40 series. This added compatibility may provide more future-proofing for gamers and professionals alike.

Cooling Mechanism

Cooling performance is an important aspect of power supplies, and both models are equipped with a 120mm fan. The ASRock PRO-650G features a balanced cooling solution aimed at maintaining low noise levels, although specific dB ratings are not provided. The SAMA White, however, is designed with an ECO fan that utilizes Fluid Dynamic Bearing (FDB) technology, achieving noise levels as low as 20dB-A. This suggests that the SAMA may provide a quieter operation under heavy loads, which could be a critical factor for noise-sensitive environments.

Warranty and Support

The ASRock PRO-650G comes with a 3-year warranty, providing decent coverage for users concerned about reliability and longevity. SAMA offers a more generous 5-year warranty, which may give buyers additional peace of mind regarding the durability of their power supply. Both manufacturers provide support, but the longer warranty period on the SAMA could sway those who prioritize long-term investment in their systems.

Price Comparison

The ASRock PRO-650G is priced at $49.99, making it a more budget-friendly option compared to the SAMA White, which retails for $62.99. This translates to about a $13 difference, or approximately 26% more for the SAMA. While price is often a decisive factor, it should be weighed against the features and performance benefits offered by each model. The higher price of the SAMA might be justified by its modular design and advanced cooling technology.

Which should you buy?

Choosing between the ASRock PRO-650G and the SAMA White ultimately depends on your specific needs and budget. If you're looking for a cost-effective option that provides reliable performance, the ASRock PRO-650G at $49.99 is an excellent choice. On the other hand, if you prefer a fully modular design with enhanced cooling and compatibility for high-end components, the SAMA White, priced at $62.99, may be worth the extra investment. Consider your system requirements, future upgrade paths, and noise sensitivity to make the best decision for your setup.