without a good PSU 5670 6670 are your only good choices, those cars are great and cheapo, they are almost like an 8800 9800 4830 250
intel 3570k@4.4ghz, amd 270x, 8gb 1600, win10 x64, x360 pad, raid0 crucial m4 ssd 64gb, gigabyte z77x-ud3h, hyper212+
