Thinking about upgrading to a better graphics card but worried my current power supply won't handle it. How do I know if I need a new PSU or if mine is good enough?

Check your current PSU wattage and compare it to what the card needs. Most modern GPUs require more power than older ones so you might need to upgrade your power supply too

GPU power requirements have increased a lot with newer generations. Your five year old PSU probably won't cut it for modern high end cards. I upgraded my graphics card last month and had to get a bigger power supply at the same time. The card alone pulled almost 350 watts under load. Calculate your total system power draw including CPU, drives, and fans then add 150 watts for safety. Don't cheap out on the PSU when getting an expensive New GPU because insufficient power causes crashes and can damage components. Match your power supply properly to your graphics card upgrade