Issue in updating drivers

I thought of updating my dell vostro 3470 desktop drivers. I used dell support assist app to find new drivers, I didn't find any new drivers for my pc. But when I search for drivers in dell's official website, i.e, www.dell.com/support I am able to find lot of latest updates for my pc. Since I don't know the order for installing drivers I used the option available for searching drivers in that website, It also didn't find any drivers. So please tell me that should I install any drivers from that website for my pc or can I just leave it like that. If you recommend me to install drivers from that website then please tell me the order of installing drivers and also send me the chart for latest drivers for dell vostro 3470 sff desktop.