LoL, needed to delete my previous reply since I misunderstood your original post which wasn't about your CPU.
Depends on what your Budget is or how much you are planning on spending maximum on a GPU Card.
You can use this PSU Wattage website as a reference to see what GPU cards your current PSU can support and which PSU Wattage you need minimally run various GPU cards : PSU REQUIREMENTS - RealHardTechX