Read the article again. ccminer 1.0 was doing 4.6 MHASH on the GTX 780 Ti (250W) (and 1.8 MHASH on the 750ti)
The latest ccminer sp-mod (release 60) mines x11 at around 3MHASH on the 750ti. 3,3 with overclocking. (50watt)
Ah now i see, i guess i was a bit tired when i read that
3.3Mhs @ 50w is actually pretty good.
Nivida cards suck at mining ethereum R9 cards are the flexible choice right now
I tried to start mine Ethereum today but i did not get it to work with my AMD gpu:s
I will give it a new try here some day.
Right now i have my tiny rig mining Startcoin, i think that coin have future.