Released June 2012, Model A1278. Intel processor with Turbo Boost, Up to 512 MB DDR5 Video RAM

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help with part number, MacBook Pro mid 2012 with graphics of 1536MB

what would be the part number for the logic card of the macbook pro mid 2012 core i5 2.5ghz with intel card hd 4000 of 1536MB VRAM

since my laptop damaged the logic card, I bought another card for my laptop and it worked, but it came with 512mb Vram, and I needed it to have 1536MB, more video !!!!, as before

How do I know which card has the most mb in vram, to buy again?

Grace for your help

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Unlike the 15" MacBook Pro's, the 13" models use mapped memory so the amount of RAM your system has defines how much is reserved for video RAM.

From EveryMac: "HD Graphics 4000 graphics processor. However, with 4 GB of RAM installed, the graphics processor uses 512 MB of RAM for video function. With 8 GB of RAM, 768 MB is reserved for video function and with 16 GB of RAM, 1 GB is reserved for video function."

So in your case you'll want to upgrade your RAM to the max 16 GB to gain the deeper video RAM.

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