Overclocking won't help, more airflow and higher gpu clocks play no role whatsoever as long... ... as the base is not solid. The base: your CPU is fine. Could do with some overclock... after you solidized the basis. RAM is fine Motherboard is fine Videocard is fine PSU is fine HDD, Caviar Green: serious Bottleneck! Replace WD Greens with Caviar Blacks. Learn to use first halves of the hdd's for OS and games respectively. Always keep enough free space. Defragment on a regulary basis.