Most suited graphics card for i3

[AJoo7]

Can you tell me which is the highest graphics card that is suited to i3 3220 with Intel origin dh61ww motherboard that holds 6gb ram ,which can support high graphical games coming in 2016 at higher settings

 

[helpstar]

With this CPU, a used hd7850 or r9 270
Which power supply do you use? Make and model please