Just felt "good bump" wasn't enough of a comparison really. The 860m is a 750ti with 4GB of VRAM if you have a 4GB model. Slightly less performing than a desktop 660, which is a good deal away from the 670 in terms of raw power.
Don't get me wrong, for a laptop the 860m is a good chip. I just don't want other people reading a thread like this that aren't in the know thinking the 860m is going to max real taxing games out.