its has a PCIe x16 slot for the graphics card and currently has a nvidia G210 in it. I'm looking to upgrade but realise my choices are limited as 1) its a mini tower and 2) i think the PSU is only rated 220w.
what are my choices for cards? id like to get something that has comparable performance to the HD4850 or 9800GT. would i have to upgrade the PSU?