More wattage isn’t better — adequate wattage with is better. A 550W Seasonic Focus Gold will outperform a 700W no-name unit in every way: stability, safety, and lifespan. Use a PSU calculator (OuterVision, Cooler Master’s tool) as a starting point, then add a buffer of 100W–200W for modern GPUs. Your PC will thank you with years of crash-free performance.
There are several types of power supplies available, including: computer power supply wattage