I built my first pc like 3 months ago, and i do not have a GPU yet. I was looking through the market to see what GPU should i buy. My current build is a Intel Pentiume g3258 Motherboard gigabyte h81m-h Powersupply corsair CX600m Ram 8gb ddr3 1600mhz in a Corsair spec-01. I was wondering what should i upgrade, i have a 500$ budget and do not know what to upgrade.