The question follows the title.
Will my PSU be able to support R9 270X? I believe it's a 500w, and the rest of the spec is the following(which is written on the side): +3.3v = 29A, +5v = 31A, +12v = 21A, -12v = 0.5A, +5Vsb = 2.5A. I have no idea how these numbers work. Oh also my PSU only has...