A:AnswerTo answer your question yes you can upgrade/replace the components. However, I would not recommend the replacing the motherboard because if the motherboard doesn't have the exact same mounting points you can cause shorts and damage. I would also recommend that if you do try to add in more components that you verify that the there is enough connections on the power supply. But for a simple graphics card upgrade there shouldn't be any problems. Also if you are planning to do a bunch of upgrades, you may be better off buying a higher end computer or building your own entirely.
A:AnswerI have not personally tried it but it can run it at minimum settings but I suspect at low frame times like lower 20's. I would suggest buying a better graphics card with the computer. I also have a screenshot of games and whether or not it can run them at minimum or recommended settings.
A:AnswerHere's a screenshot of whether or not it can run some popular games. It can run Skyrim with mods at medium settings but at 20 fps. It can't run fallout 4 but this can all be fixed by purchasing a better GPU.
A:AnswerHi Alex,
To answer your question it's none of those. the i7, i5, and i3 is all made by the manufacturer Intel. This desktop computer's processor is manufactured by AMD and is actually an AMD FX 6300 Desktop.
Hope this helps!
~Dycky