I have a 750 Ti FTW at 1363mhz core (+40) and 1600mhz memory (+500) with these results:
330 K/hs scrypt (-H 1 -l T5x24)
37w idle
120w load
The other components are: 450w gold, G1610, Asrock extreme4, 2x 4gb 1.5v, 80gb ssd, gigabit link, usb bt m/kb, on 120v.
I can also confirm the bios has a built in 35% power limit increase like advertised. It shows a 52w "TDP" value instead of the default 38.5w. With this +35%, the card is more voltage cap limited than power limited. I haven't been able to get 1.2v modded like StayPuftOCN did with his Asus card. My 750 Ti FTW uses 1.15 volts and it isn't 1.4ghz 3d stable.

Arrrgh. This sucks. Can't get GPU-Z to pull my BIOS image off my card. Keeps crashing the program.
Do it in dos with the provided nvflash.exe. Worked for my 750 ti ftw, which doesn't really need more power limit though since it's vOP (operating voltage) limited in all cases as is.