You can use it, they are both DDR4 RAM, but the RAM will run at 2666 in the 3470.
Can i use ram from inspiron 3910 (3200Mz) in an inspiron 3470 (2666Hhz)
Can i use ram from inspiron 3910 (3200Mz) in an inspiron 3470 (2666Hhz)