I just purchased an I7 3770K. I focus more on stability rather than overclocking. I am thinking of going with a ASRock Z77 Extreme6 board. Looking for recommendations on memory. Mainly, if I want 16GB do I go with 2x8GB or 4x4GB. And at what frequency? Most newer rigs I see people posting still use the DDR3 1600, rather than DDR3 1800.
4x4GB is $90http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&N=-1&isNodeId=1&Description=g.skills+ddr3+4x4+gb+1600&x=0&y=0
while 2x8GB is expensive by another $25 more.
Your mobo supports up to 48 gb memory. So, that leaves you space to throw-in another 16 GB (2 X 8 gb) in FUTURE. If you think that's enough, save the $25.
The i7 3770K supports up to 1600. That's probably the reason.