What settings should i use for arma 3

GPU:Geforce GtX 670

Cpu:AMD FX(tm) Eight Core Proccesser

Ram: 4GB

what should my setting be for arma 3

Get 8gb of ram and use this https://github.com/fred41/tbbmalloc_arma put it in the dll folder of arma 3 then use the launch parameter -malloc=tbbmalloc .   This makes the game use like half the ram it normally does with no performance hit.  The settings dont really matter that much to be honest you are just going to get bad fps sometimes. Turn the fliters off and the motion blur.  Leave the settings on high and turn and hdr to low.