I have inspiron 660s with i3 processor ,2 gb ram,sapphire hd 5450,500gb ram.I want to upgrade my graphic card my budget is around 50 to 80 dollars.I like this one http://www.flipkart.com/sapphire-amd-ati-radeon-hd-6450-1-gb-ddr3-graphics-card/p/itmd4f6rggffuefg?pid=GRCD4F6RGGFFUEFG&otracker=from-search&srno=t_2&query=hd+6450&ref=27104a75-4b97-46e4-800b-f3fa302f3024