Hello, I have a Gigabyte MoBo. GA-78LMT-USB3. I can go with a 4-core, 6-core, or 8-core CPU. I would like to know since this board can only have one GPU. should I go with a 4-core or 6-core CPU. since I can not have two GPU's. or go with the 8-core and get a very good GPU. what I am trying to...