For comparison @ $800:
Dell XPS 15 would have a dual core l5 CPU, 4GB of RAM and the same GT 540M graphics cards.
They would 'game about the same' but the Asus has a better CPU while the Dell would be a bit better as a all-round entertainment laptop.
HP Pavilion dv6 Select Edition $750 would have a dual core i5. 8GB of RAM and a Radeon HD 6770M graphics card.
That
HD 6770M graphics card would have been a better gaming option. But it's not a huge difference (easy for a casual game player like me to say that) in most games.
Overall, the Asus X53SV-MH71 looks to be fairly priced and a good value.
For all the usual home office/school work/home entertainment tasks they're all be fine choices.