Comparing Memory - for Asus Z87-Pro


I am putting together a system using the Asus z87-Pro motherboard and am having a difficult time determining what RAM to buy. I see many different options but I don't understand what makes some memory better (cost more) than other.

so this mother board says it can use:
DDR3 3000(OC)/2933(OC)/2800(OC)/2666(OC)/2600(OC)/2500(OC)/2400(OC)/2200(OC)/2133(OC)/2000(OC)/1866(OC)/1800(OC)/1600/1333

so anything above 1600 is overclocked, so if I buy 1866 base clock ram will it just work?

As for the memory what is the difference between:

Team Vulcan 16GB DDR3 1600 (PC3 12800)
9/9/9/24 CAS 9

G.SKILL Ripjaws Z Series DDR3 SDRAM DDR3 1866 (PC3 14900)
9/9/9/24 CAS 9

If my understanding is correct the G.Skill is better because it has the same timing and CAS with higher mhz? But is it worth the $30 price jump? What kind of performance increase is it giving? Will it matter if using the above Motherboard?

Thank you in advance for helping me understand this better.
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More about comparing memory asus z87 pro
  1. Best answer
    I think this article will address all of your questions:

    Ram will have a minimum default speed so you can enter the bios.
    Once there, you can set the ram speed and voltage to your liking and the ram capability.

    It is not necessarily that simple since there will be interactions with overclocking.

    But... it does not matter all that much in actual app performance either.
  2. Yes the 1866 sticks provide higher bandwidth, at the same timings as the 1600 sticks, so depending on what you do, the rig will run faster, moreso if doing things like video, imaging, CAD, VMs, multi tasking, etc....for Haswell, the RJ Z set is good, might also look to the GSkill Tridents or Snipers, they are the best I've run with Haswell CPUs
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