Desktop memory 4x4 vs 2x2 + 2x2

[keecher]

Okay, so my question is whether there is any difference between having two 2x2 dual channel memory versus one 4x4 dual channel memory. Both would end up with 8 gigs, while one uses 4 slots and the other only 2 slots. For instance, I have the G.Skill Ripjaw 2x2 memory installed, and I am looking at upgrading to 8 gigs. Would simply buying another set to fill in my two remaining memory slots be the same as swapping out the 2x2 for 4x4 memory? This is of course assuming I have 4 memory slots supporting dual channel memory, and all other memory variables are kept constant.

 

[Mizzou]

Since you already have 2x2GB you might as well go ahead and add another 2x2GB to get to 8GB.

 

[cliffordcooley]

Your question should have been written out as 2x4GB or 4x2GB. You currently have 2x2GB and the 4x4GB combination would equal a total of 16GB.

The question as to which combination is better, has been a question I have as well. I'm fairly confident though a performance difference would hardly be noticed.