I am thinking about upgrading my GPU and the best ones I have found IMO are GTX 650 Ti BOOST, GTX 660 Ti and GTX 770. The difference in price between the cheapest and the most expensive is around $200 and I'd rather buy GTX770 ($350), but I'm wondering if this performance will be overpriced for Full HD resolution. GTX 650 Ti BOOST ($180) has incredible "price-qualility" and 3 years of warranty instead of 2 on the others cards and it's main reason for it. But GTX 660 Ti is only $50 more then GTX 650 Ti BOOST and I just can't choose between warranty and a little bit more performance. CPU - Xenon E3-1230V2. Waiting for your answers. Thank you.