That is nice, and powerconsuption for system or per card, or two cards
35w per card is what i have read.
I have not done much comparison testing, but my one rig with (2) 750ti in it is pulling 195w when I mine Fugue and it only pulls 175w when I mine Groestl.
System is win7 32 bit running on an i5 2500k chip.
My other 2 card system has a Q6600 chip, so it probably sucks a bit more wattage.