As avatar said , u will be fine .. But , why 3.36 ?
when the sweet spot is 3.6 to 3.8 .. you should be good with that ram at 3.6 .. tho 1600 would be much more effecient for u .
depending on what type of ram ur 1333 is , it may oc easy to 1600 . which alot of ram's are noted for oc'ing easily to 1600 .