Hello. I was just wondering should i go with the 6770 or the 6790. My main goal is to run skyrim on medium to high settings, And crysis and crysis 2. my cpu will iether be a amd phenom 4X 955 or the 6 core amd cpu (i cant decide). Just asking for opinion's . Oh and if i have a OEM moniter, can i still hook it up to a new gpu such as the 6790 ?