Ethan, why is that on your builds there are i5s instead of i7s? How much of a difference is there?
Barely, i7 has a 100 MHz difference, and just Hyperthreading support.
100 MHz, easily overclocked from i5 plus not worth the money.
Hyperthreading is only really used in really heavy video editing and 3D modelling. You don't need it if you're doing gaming.
Also, the i7 has 2 more MB of L3 Cache, no idea what the difference of that is.