A:Answeryes you can. arma 3 is a relatively demanding game but this pc should be able to keep it running at a playable fps. and hearts of iron 4 isn’t very demanding on the pc, meaning this pc should run it with flying colors. hope that helps!
A:AnswerThe best thing to do is to overclock your system, make sure you arent overheating your system though, there are many videos on youtube that could help you.