Russian T-14 vs T-90
I think that rack next to the Armata's RWS is an anti-top-attack APS - or is it chaff grenades?
according to what i've found (which i'll admit is probably highly speculative even on the better sites) it would probably be part of the NII Stali Upper Hemisphere Protection Complex, which includes the two vertical and two horizontal steerable box launchers. apparently they are a "soft kill" system according to what little has been released. presumably smoke/chaff/flare/how-ever-you-do-it.
supposedly the larger tubes at the base of the turret are hard kill APS mounts, but there is some debate whether that is true (could just be smoke tubes and russia is hyping them up otherwise to make the vehicle seem more advanced)
nextbigfuture had this diagram made up.. grain of salt for a lot of it, i'm sure.
and the APC model: