Help with my g card

[Sadgee]

Hi I have the medion akoya e4080d Google it aka the aldi PC. I want the graphics card.it comes with a hd7560d card but its a apu. I can't find how much my PSU is in watts but which card should I buy so I can play high end games without having to change my psu?!? Crossfire maybe or help?!? Lol

 

[Robert Cook]

I cannot find the wattage either, I would open it up can read it off the side of the power supply let me know what you find.