i dont have that much budget only 150$ and in that i want to buy a new gpu,gc and 2 gb ram which looks pretty impossible for me so i would only upgrade my gpu and gc.....yes what do u thnk do i have a pci 2x16 slot.....and one more thing i went on some gpu power supply calculating sites and i putted my syrtem specs including pci 2x16 slot and it told me i would have around 270+ watt power supply so im really confused and for graphics card 6670 on game debate it shows that with 4gb ram and this processor it can run at high settings with this gc.....and for 6770 i thnk i wik not be able to buy it because my pc have max tdp of 65 watts and it require much more than it.......