Lets take a look at something else:
http://cpuboss.com/cpus/Intel-Core-i7-4790K-vs-AMD-FX-9590http://www.newegg.com/Product/Product.aspx?Item=N82E16819113347$199 for this processor right now (AMD 9590).
http://www.newegg.com/Product/Product.aspx?Item=N82E16819117369$299 for the I7 4790.
Or go nuts....
http://www.newegg.com/Product/Product.aspx?Item=19-117-402. $389.
Here's the comparison on the AMD vs that newer I7:
http://cpuboss.com/cpus/Intel-Core-i7-5820K-vs-AMD-FX-9590LOTS of great mobo options for any of those three. For the newer I7 I rather like this MSI board:
http://www.newegg.com/Product/Product.aspx?Item=13-130-793For the 4790 I like this board, if you're married to Asus:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813132124For the AMD I like this board:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131876.
So......for the top AMD processor (which in some ways will outperform the newest I7) we have $199 CPU and $219 board, for $418.
For the slightly older I7 4790 and board we have $299 and $219, for $518
Or for the newer I7 we have $389 and $259, for $648
Obviously the newer I7 has some legs. The AMD holds its own, however, and overclocks easier and better than the I7. But.....with the AMD you will be using DDR3, rather than the DDR4 on the newer I7/ The newer I7 uses a lot less electricity (22 nm vs 32 nm). Also the AM3+ socket boards do not support PCI-E 3.0 yet, so its still 2.0 (honestly wont see much of a difference with even the newest vid cards).
Anyway, just some food for thought. Were it me.....I'd probably go AMD and save myself a bit of cash. The performance differences are minimal.