Is it worth it to get this card or the Asus 7850 2G deal, 120 vs 180 AR? It will be used for 1080p gaming with i3-2100, 4x4 DDR3, 550w Enermax. For what it is worth, right now I am using an 8800 GT 512mb. I have a feeling I'll become CPU limited with the i3 and I don't want to upgrade that...