I don't think so, cos if you overclock the gt650m it will have the same performance as the gt750m. But the gt 750 has a bit better performance and some new features (like gpu boost 2.0) and a new sticker. Not sure about the performance of the GT 750M cos I haven't seen a lot of benchmarks of the gt750m. EDIT: well I think the GT750M is worth it, because of the much higher clock speeds and therefore it could mean higher performance.