The zotac gtx 750 is better than the 7770. Plus is consumes considerably less power. And Zotac has a 2 year warranty and if you register your product on their site you will get additional 3 years of warranty all summing up to 5 years. My suggestion is get the Zotac GTX 750 TI Single Fan. It is only $20 more expensive than the 750 non ti.