A:Answer Hi Genjishimada, you can upgrade the parts, but I would recommend you to contact our support team first in order to avoid buying a incompatible equipment. For fps, we can not give you an accurate number, cause it does relate to many elements. Finally, the computer that you purchase from Bestbuy has already been tested and set up, you don't need to worry about it. If you have any additional question or need further assistance, please feel free to contact our support team: https://www.ibuypower.com/Support Thank you!