The way the system is, it's a toss-up as to what is better. If you had a step up or down in either right now would be easier to figure out, but the way the i3 is with the 950 you are looking at an i5 with a 750 Ti which may be as good as the other way. If you want to be sure, spend another 50 or 60 and get an i5 with the 950.