Thanks for answer. I download Pacific Demo and I am able run it even on advanced settings. Graphics look good but it is not playable, if I scale down graphic, it is still not good. Maybe Pacific Demo is not good optimized, because I play games (on Intel HD 3000) which looks better then PacificDemo on low settings. And on pacific demo wasn't enemies with AI. But I hope if I do similar graphic to games I played, it will be ok.