which would you select, assuming they're about the same price:
A. Corsair CP-9020140-NA HX1200 1200W 80 Plus Platinum High Performance Power Supply = $235 each on amazon.
B. EVGA SuperNOVA 1300 G2 120-G2-1300-XR 80+ GOLD 1300W = $230 each on newegg.
they're for 12x 1070ti / 1080 rigs i'm building moving forward, lets say they use about 150w x 13 = ~2000w total. both carry 10yr warranty and have free shipping / no tax.
I'd select the platinum rated power supply any day. They're rated to lose less electricity to heat for every usable watt that goes into the cards.