Is this laptop a good buy?

http://shop.lenovo.com/us/en/laptops/lenovo/z-series/z70-80/?sb=:000001C9:000142E4:#tab-customize

So I was just wanting to get myself a nice laptop, that by the way would capable of playing, for example, GTA 5 PC at mid to higher performance, so I also need to know if that can happen.

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