BeamV2 has got a higher hash and more power consumption. You cant compare it with BeamV1.
Data of some of my rigs:
1070 120 Watt 31-35 Sol
1080 140 Watt 40-41 Sol
1080ti 220 Watt 54-56 Sol
2080 125 Watt 46-48 Sol
Wotan
True, i get the same hashes for our 1070 ( upto 35sol @110watt, depends on the card ), also the GTX 1660 ( non-Ti ) are beasts, upto 27sol for like 85w and around 55° stable

Our RX-580 cards get 16sol for 110w ( we dont keep em running btw ), they got replaced by 1660, but tested quickly for sharing here.
Thing is the rewards are not that much more at first sight tough ( tested @ leafpool ; Sparkpool ; 2miners ), ill keep it posted here as we are a bit further the coming days.