You must know your Mobo have maximum 2000 (OC), in the default system your Mobo only read 1600.
Ok .. You can answer your question your self.
What about the ram timings? Do those matter?
CMX (8G) X3M (2) A (2000) C9
^ ^ ^
total amount in this many sticks at this speed
The CMX, X3M, A, C9, I dont understand what these are, im sure they matter
Looking at this: http://www.corsair.com/learn_n_explore?id=1449449