Chance to get 3x int on armor is like 0,0000000000000001% (well maybe a bit higher but still very low), no1 was able to get it yet here, so it might be hard. U can get 2x int on daggers as well but chance is similar as to get 3x int on armor. U can easier get 3x int on wrists, more and more ppl are lucky enough to get it. With 3x int on wrists and dragon top/daggers u can be 4,0 base.
Just a SS of my friend's x3 Int on another server. http://prntscr.com/26hn30