Mixing Different RAM Memories

stako2908

Prominent
Feb 2, 2018
24
0
510
I saw multiple posts about mixing RAM here,but I still don't get it.
I'm planning to mix a 4GB and a 8GB sticks,both the same brand,both the same voltage,but with different timings-one is CL9 and second is CL11.
Is there anything else i should watch for,and is it worth trying to mix them?

EDIT:I forgot to mention,frequency isn't same,one has 1600MHz,second one 1333MHz.
 

stako2908

Prominent
Feb 2, 2018
24
0
510
Is there a chance that trying them out could ruin the sticks?In case they won't work I'll just sell the 4GB one,that's why I'm asking.