I need advice between this two graphic cards, mainly for gaming at 1920x1080
1: Sapphire Radeon HD 7950 OC Boost Vapor-X 3GB GDDR5
Or: EVGA GeForce GTX 660 Ti SuperClocked 2GB GDDR5
Some explanation which is better will be welcome too becouse i'm a litle noob with that.
Well the 7950 Vapor-X will be the superior card in terms of cooling and also in performance but also I would suspect would also cost more money as well. Both cards will do great at 1080p. If you plan to stick with your monitor both will do just fine. So whether you want to get the stronger performer or the more inexpensive option that is up to you but both are capable cards.