Need advice about RAM

I just built my new game pc, my main spec are: Intel Core i5-3570K, Asus Maximus V GENE but i need advice with my memory module becouse i'm using this one i had recently bought for my old computer 8GB Kit (4GBx2), Ballistix 240-pin DIMM, DDR3 PC3-10600 (http://www.crucial.com/eu/store/partspecs.aspx?IMODULE=...)
Should i upgrade it to a faster memory?
I'm thinking to upgrade to G.Skill Trident X DDR3 2400 PC3-19200 8GB 2x4GB CL10 or G.Skill Ripjaws X DDR3 1600 PC3-12800 8GB 2x4GB CL7. The price difference is very small between this two. Could you suggest me which of this memory i should buy? and most importantly Will i notice a real improve over the Crucial i'm using now?
Thanks