Dont opt for a haswell over ivy
Reasons
1. Only 5-10% marginal increase in haswell from ivy
2.haswell produces more heat than 6 core sandy bridge e processors so ivy cpu would b better overclocker
3.there is no news that the 1150 socket would support further generation processors as broadwell would be bringin ddr4 most probably so it will be a new mobo
I hope thats what u would all need to know