I recently built my first PC with the intention of using it for school work, social networking, and a bit of light gaming. I have since taken an interest in exploring game titles such as Call of Duty Black Ops 2, and other medium-demand games and would like to know if I could run a stand-alone GPU, such as the HD 7770 with my current APU (yes, APU), the AMD A4-7300. I realize they may not be compatible to run in tandem, but would I have any major issues using the card in place of the on-board graphics processor? See system components below:
You should be able to use a discrete card with your APU; if you encounter problems, you should be able to disable the iGPU via the BIOS.