Maybe if you compare it to the old 670M fermi. The hot bad in mobile 40nm gpus. It won't come close to the 670M(X) Kepler. The fermi was just Nvidia being lazy and moving slowly to the 28nm and prioritizing the more important mainstream chips. 670M was just 570M with a little higher clocks it doesn't really count as a 600M part at all IMO.
A 760M will get close to a 670M Kepler.
A 760M will get close to a 670M Kepler.