Tekiya802 :
Colif :
i would get a better PSU as there are no guarantees current PSU puts out the correct wattage, and I would want a solid basis for a new GPU. Rest of PC deserves it anyway.
Will Seasonic S12II 520W/620W atleast good enough?
Most Seasonic are good enough so I would think so. That should be plenty
I don't think Seasonic make any bad PSU, you may only need 520w version