GTX 750ti or GTX 660

Solution
The 660 would be better for that system, although I wouldn't recommend using that PSU, something from Antec, XFX, Seasonic, or Corsair (TX, HX, and AX series only) should do.


thanx for the reply.

is there a huge difference between the performance of these cards?

i mean gtx 750 ti is over an year newer and there is not much difference in the price.