I have PC and my specs is ram 2 gb, Intel core 2 duo 2.40 ghz, I have seen in dxdiag tool that my graphics card as nvidia geforce 7100/nforce 630ii and 824 mb.I don't know that it is graphics card or integrated graphics. games like GTA 4,sleeping dogs and other games are lagging very much.I have a budget problem so can increasing ram can stop the lagging or I have to do another thing.plese replay fast.thanks for answer.