Hi I have an AMD A8-4500m with 4 GB ram and amd 7640+7670m.When i play gta 4 it gives only 20-30 fps max i tried updating the game,drivers,Dx11 etc.My GPU usage is also at 30-50% and CPU is 60-65% so anyway to increase the usage of this or to make the game give more fps?????.I also tried some commandlines.Thanks in advance.....