Quakemz :
Are you asking what kind of performance a 750m gives? Laptop GPUs are generally a little worse than their desktop equivalent. I'd say the 650 is VERY similar to a 750m. I have a 750m in my laptop.
I'm asking what kind of desktop GPU gives similar performance. So if it's the 650, that gives me some idea.
I'm trying to figure out if I can finally go from my desktop to a "do everything" laptop like the new 2013 Dell XPS 15 Touch, which has an i7 Haswell and the GT 750m.
Right now my desktop system has one of the first i5s and a GTX 560Ti, but I've been able to run pretty much every game I own at 1080p with max settings... Skyrim, Diablo 3, Source engine games, Bioshock Infinite, etc. I don't really want to buy a $2,000+ laptop if it's only marginally more power (or less power)... I want something that is more future proof. So unless the 750m is substantially better than the GTX 560Ti, it might not be the time yet.