Hello to all the community, 

I have a Dell XPS Studio 8100 with 4x1GB (total 4GB) of DDR3 ram. I have found in good price on two sticks of Vengeance 8GB (total 16GB). The motherboard supports up to 16GB (1333MHz). My question is can the motherboard/cpu support two sticks of 8GB or should it be 4 sticks of 4GB? Also new ram is higher speed than motherboard supports is that a problem? 

Thank a lot for the support.