where is the graphic card located in the dell slim tower 220
More aboutwhere graphic card
if you can open it up, you can see it if it is a graphics card. if you mean onboard graphics, it depends upon the motherboard.
It has onboard graphics if you want to add a discrete gpu it goes in the PCIe x16 slot. The long black one on your mobo beside the pcie x1 slot. Dell sold these with the ATI 5450 as an option to onboard.