I am going to upgrade a Dell Optiplex 980 MT. I am going to be getting a new power supply in the 450-600 watt range not sure exactly because I am bidding for everything on eBay. I will be adding 8 gigs of ram (2x4) which will total to 12 gigs. I am going to upgrade the CPU down the road or when a good deal pops up on eBay to an I-7-870. I do have an SSD that I am going to be putting in it, 120gb Samsung. Now this leaves me to the graphics card. I am looking for a graphics card that is a good bang for the buck but still powerful to play games ranging from Rocket League to GTA5. It can require a six pin connector or it doesn't have to put it MUST be able to run on the 75w video card slot if it doesn't have a 6 pin connector.