I've got an i7-4790k and 4gb of ddr3 1600mhz ram at the moment, should I upgrade to 8gb of ram with a samsung 840 evo 250gb ssd or get a new headset with the ssd instead of ram? I'm not sure if the ram is worth it? I lag sometimes when I want to open a program or when I multitask but I'm not sure if that's because of my ram or my 5 year old 250gb hard drive. Also, I play arma 3 and sometimes I get lag spikes when I enter new areas of the map and then it returns to 40-50 Fps on max settings..