i have 16 GB right now its the 1600 cant remember the clock speed and i add in my X-tra Ram cards its 1333 i want to make it 32GB
It'll work, but will run at the slowest of the two.
It will run at the slower speed. What are you running that requires 32GB at any given time? Usually would need to be doing a couple virtual machines, or maybe some really heavy RAW photo work, or serious video editing to get any benefit. 16GB is still plenty for a performance gaming PC.