that depends on the make and model of pc's in question
you would need to see if the one card is compatible with the pc
check google for the manufacturer of the graphics card and see if it is compatible with the pc.
you have uninstalled the rage, correct? what is the graphics card now??
do this:
Click Start, Run and in the box enter:
msinfo32
Click OK, and when the System Summary info appears, click Edit, Select All (Ctrl-A), Copy (Ctrl-C) and then paste (Ctrl-V) the information back here in your next reply.
You can edit out any personal information.
instead of system summary , expand components, then expand multimedia, highlight display and copy/paste that to the next reply, then I can see which graphics card is installed.
do this for the one you want to trade so I can check and see if it is compatible to the optiplex.