Bitmain Antminer S5 Using the default frequency of 350M my S5 was able to get 1.13TH/s while using 661 watts (0.58W/GH) and exhausting 122 degree heat.
Spondoolies SP20 Using a voltage setting of 0.62 my SP20 was able to get 1.2TH/s while using 640 watts (0.53W/GH) and exhausting 124 degree heat.
BFL Monarch Using stock settings 2 Monarchs were able to get 1.2TH/s while using 1040 watts (0.84W/GH) and exhausting 152 degree heat.
Asicminer Prisma Using stock settings my Prisma operates at 1.2TH/s while using 1240 watts (1W/GH) and exhausting 150 degree heat.