Upgrading a Dell Dimension 4700 video card

[blue71969]

i have a dell dimension 4700 and i need a video card for gaming. any suggestions??

 

[truegenius]

it is a weak machine, see here
http://supportapj.dell.com/support/edocs/systems/dim4700/sm/specs.htm#wp1043338

i rather prefer to buy new one
but if you want to add a graphics card then you can go for a mid range card like hd5xxx which supports dx11 also (of about 50w-80w tdp cause your psu is limiting it).but cpu is bottleneck
but for exact ans you need to post some of your pc's specifications (Use cpuz for that), info of ram is must to guide you further
also post some examples of games you want to play