I have 4 rigs.. ranging from 2 GB RAM to 4 GB RAM.. cant say I experience any discarded shares on any of my rigs.
oh and by the way...this algo really likes power... normally my cards use 1300w(lyra2z) to around 1500w(equi or/and eth) but this shit wants 1800w.. prolly because every CPU have to work more aswell

I guess they are releasing more efficient miners in the future!
If you want to reduce your power consumption try this:
1. Install Nvidia inspector 》 choose force p2 mode in common off. Also choose maximum performance.
2. In afterburner. Set power limit to 55%. Then on each card set core to +150. Ram +400. (These should work on any card. With Samsung you should go to +500ram.) Going higher ram has no effect. Higher core can help. Try steps of +10.
3. Goto power settings. Advanced in Windows and change maximum cpu usage to 10%. This will shave off about 20watts per cpu and only effect the hash rate slightly.
On a i5 4 x 1060 this gives you about 1080h/s. At about 300watts.