Different RAM capacities and frequencies

[PaulSarkz]

Hey everybody! Being a newbie PC builder, the question I am about to ask might get you laughing at me
I currently have 3 DDR3 RAM Memories with 2GB of memory, each set at a frequency of 1333 MHz (I suppose that number is in MHz)... and I am wanting to buy 2 more memories of 4 GB, each set at a frequency of 1600 MHz. My question is if I may find any compatibility problems due to the fact that I will be running sets of memories of different capacities and at different frequencies?
Your answer helps a lot! Thanks!

 

[duxducis]

They would simply run at lowest of the memory used, 1333Mhz You can't run at different speeds
The 1600mhz ram will run at lower speed just fine
Also set of 2GB and set of 4GB will run no problems giving you 12GB total

 

[PaulSarkz]

Thanks a lot! I thought it would be so, but I am trying not to do anything that may ruin my PC By the way, any problems if both have different latencies?

 

[PaulSarkz]

Best answer selected by PaulSarkz.