So was looking at getting a 2012 refurb 15 inch rmbp, the specs are for the 2.3ghz Originally released June 2012 15.4-inch (diagonal) Retina display; 2880-by-1800 resolution at 220 pixels per inch 8GB of 1600MHz DDR3L SDRAM 256GB Flash Storage 720p FaceTime HD Camera NVIDIA GeForce GT 650M with 1GB of GDDR5 memory Right now however, on the 'technical specs' page for all the macbook pro range, it says this 'NVIDIA GeForce GT 650M with 512MB of GDDR5 memory and automatic graphics switching (2.3GHz 15-inch model). The optional 2.6GHz and 2.7GHz 15-inch models come with NVIDIA GeForce GT 650M with 1GB GDDR5 memory' Is this true? the 2.3ghz only has 512mb of dgpu? i've never heard that before but it's thrown me off a little seeing that there. help appreciated, thanks.