Best DDR4 Ram for this High End build?

[zacheriahb]

Here's the build: http://pcpartpicker.com/p/Xn7TvK

What should I be aiming to do? I think 16gb will likely be plenty for this rig. Mostly going to be for gaming, some design work.

Should I just be getting the lowest CAS ram that is at least 2400? Would 2x8 be better than 4x4 or the other way around?

 

[zacheriahb]

Maybe a couple of these?:
http://www.amazon.com/gp/product/B00TY6A56U/ref=ox_sc_mini_detail?ie=UTF8&psc=1&smid= (the 2x8 is out of stock, so if I just buy two 1x8, that's okay too, right?)

 

[Tradesman1]

For 16GB with your 5820K go with a 4x4GB to utilize your quad channel potential, I'd look at the GSkill Ripjaws 4 or Trident Z in 2666 or 2800, (might consider 3000, but it can be iffy and often requires a CPU OC (as can 2800, etc - all depends on how strong the CPU's MC is