asus z87 a ddram

[ML-maximo]

HI Tom's Hardware
i want to buy some upgrades for pc

MSI R7 260X 2GD5 OC
Intel Core i5-4570, 3,2GHz, BOX (1150)
MB Asus Z87-A
ddram 2x8GB

my question - what ddram?
higher Mhz ot stay at 1600Mhz ?
what CL max ?

thanks for any suggestions.

update
4x4GB or 2x8GB?
price around 150 euro

 

[smorizio]

depends on price if you can get the gskills aries ram on sale or the cosair ram. the aires 2100 ram on sale right now for the same price as most 1600 ram.