I admit that I am extremely late for this but I just discovered during Christmas season the usefulness of PC gaming. Currently I own a MacBook Pro 13 inch Mid-2012 non-Retina laptop which comes with Intel HD Graphics 4000 which isn't ideal by any means for playing video games. I have managed under low settings to play recent games like Batman Arkham Origins and Tomb Raider on Windows via Boot Camp so in that respect it has managed fairly well. However I was thinking that about maybe selling my current mac laptop and upgrading to one of those 15 inch models because of its dedicated GPU. However the current 15 inch portable Macs, the only one that sports such GPU, costs $2599. Since I can't afford that upgrade just for extra gaming under no circumstances (being a college student and all ) I was maybe looking for old refurbished models on Apple site. I'm not really that into the Retina Display per se and kind of like the convenience of having an optical drive on my notebook for the occasional movie and disc burning. Also bought a SSD for my current sucker that I would hate to let go to waste. Sooooo, my main concern is if I were to get the old non-Retina 15 inch MacBook Pro from 2012 is the the Nvidia GT 650m GPU still useful for PC gaming on a laptop. I'm thinking of getting a model with the standard 1440x900 resolution display (Since it's not Retina which just packs the pixels under that resolution I see no value in the higher-resolution display for this model) given that a) I like my resolution to be low for the most part since I have seen laptops with 1080 display and they look "atrocious" for regular PC use beyond gaming since everything is so small on the display. And always had bad experiences when choosing a different resolution on any given display that its not its native one. And b) I prefer to play at 720p and occasionally like to connect my computer to a HDTV which for regular PC uses all look better at 720 unless I am watching a 1080p video. If by no it's not very clear still, my current laptop covers all my needs for a PC besides gaming more that ok but am considering doing the 'upgrade' (it still is from my current setup even though its a older model) for serious gaming. My gaming interests are console games the likes of Skyrim, Assasin's Creed IV and the like, capable of high level of details. Chose to skip the new gaming generation because I commute and the only device I carry everywhere with me is the laptop and smartphone. I also prefer OS X for main OS on the computer before anyone comes saying that for the amount of money I should just get a windows PC and that windows 8... Also what is the advantage of the base model with 512MB of RAM and the high-end 1GB ? Is the performance about the same besides the added memory for game data and that it comes with a higher clock CPU ?