1 of 2gb 1333mhz ram + 2 of 4gb 1600mhz

[cheruu]

Can i use DDR3 8GB (2*4GB) @1600Mhz with a 2GB 1333mhz ram (10GB of ram sounds cool)? ik the others rams will downclock to 1333mhz but it won't really make a difference in gaming (max 1fps i guess?) and my mobo is z68 pro3 so it does support up to 32GB of ram (4 slots)

 

[volkgren]

Not only will it run slower, but the extra 2GB will run in single channel and that could make a larger (negative) difference in gaming. The extra 2GB won't really help much. While you might be able to do it, it's not really a good idea.