But since you're in the market for such CPU, you shouldn't be looking at those i7's at all.
The Xeon E3 range is much better priced.
The Intel Xeon E3 1240 V3 is the server variant of the Core i7 4770.
It's just as fast.
Or, you could also get the E3 1230 V3 which is even cheaper, but is clocked 100mhz lower.
I have CM Hyper EVO TX3, which works brilliantly with my i5 3450, very possibly the Xeon CPU must have higher toldrance to heat then I series. How is Xeon E3-1280 v2?
Now you got me thinking. I have never bought any server processor in my life, what should i be aware of before upgrading. I have Asus H75 board in mind, and upgrading my PSU to Seasonic ECO 600W, rest of the config will remain same, is that OK?