Hi, I picked up an open box 15" retina from Best Buy yesterday. It's 2.4ghz, 8g, 256g but I noticed it only has 512k video ram? I thought they all had 1g? Can anyone verify if it's supposed to have 1g vram? Thanks ---------- Figured out the answer on my own. The Intel4000 has 512k, the GT650 has 1 gig..