If you want to spend more, then that looks like a good option. I'd say that gaming performance for the money is greater with it than with the laptop in your first post and it'd definitively play games pretty well. The GTX 675MX performs somewhere around the GTX 650 Ti IIRC. It's not incredible, but it'll play games much better than a GTX 660M. It has almost double the memory bandwidth and almost triple the GPU cores of the 660M, granted the lower GPU frequency leaves the GPU at *only* around twice as fast.
IDK if you're interested in this, but the GTX 675MX should also be great at overclocking. It's memory should have a lot of headroom without increasing heat generation by much and IDK about it's GPU cooling, but the GPU, if its cooling is goo enough, can probably handle a much higher frequency.