I'm planning to replace my RTX 4060 8GB with an AMD RX 6900 XT, but I'm unsure whether my current 500W power supply can handle the upgrade. What wattage and quality level should I look for in a replacement PSU?
2 Answers
Yes, you should upgrade the PSU. The RX 6900 XT can draw around 300W by itself, and a 500W unit leaves too little headroom for the CPU, drives, fans, and power spikes. A good 750W PSU should work for many systems, while 850W gives you more comfortable overhead. Make sure it’s a reputable model with the required PCIe power connectors.
At minimum, I’d target a quality 750W power supply, but 850W is preferable if the price difference is reasonable. The exact requirement also depends on your processor and the rest of the system, so a PSU calculator can help confirm the total load. Don’t choose based on wattage alone—look for a well-reviewed unit from a reliable manufacturer.
I’m working with a budget of about $100. Is there a particular wattage or model tier I should prioritize?