What RAM to buy?

kosamchetoo

Reputable
Feb 6, 2016
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4,680
I'm doing a X99 build with a 5820K and I am going to overclock it, but I don't know which type of RAM will be better than the other, which is faster. I am going to get 16GB - 4 sticks of 4GB for quad channel, but which is better?
2400MHz C14
2666MHz C15
2800MHz C16
 
Solution
You can check latency w/ this formula CAS * 1000 / Speed

14 x 1,000/ 2400 = 5.83 ms
15 x 1,000/ 2666 = 5.63 ms
16 x 1,000/ 2800 = 5.71 ms

Lower is better ... but those are very close. What will you be doing with this PC

kosamchetoo

Reputable
Feb 6, 2016
100
0
4,680
They are the same price (2400c14 2666c15 2800c16). Any brand recommendations? I've been told G.Skill and Corsair are the best. Also the Ripjaws V you mentioned is using 1.35V instead of 1.2V, does that make any difference?