I want to set up an eyefinity/multiple monitor set up. The computer is NOT for gaming. Only Web browsing, movies. Word processing. Programming. It has a. HD 4200 onboard. I want a low power consumption video card capable of driving 2 monitors for a low price. I had an x16 pcie lane and several 1x lanes. I have a 300 watt PSU and don't want to upgrade unless necessary.
An HD 6450 is probably your best bet. It will drive three monitors for eyefinity and doesn't require a display port adapter. AMD recommends a 400w PSU, but many people online state that they are using a 300w PSU.