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モデル番号A1419 / Late 2012 / 2.9 & 3.2 GHz Core i5 or 3.4 GHz Core i7 プロセッサ

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Is it possible to change GPU?

Is it possible to change the GPU from 512MB to 2GB?

Update (09/18/2018)

but maybe i can change the complete mainboard with the better cpu and gpu?

Answer this question I have this problem too

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The best you can do is go to for a logic board replacement is: iMac 27" 3.4 GHz i7 (Late 2012)

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No. Even if you were to solder on more memory, you would still require a custom BIOS. I recommend an eGPU.

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The 2011 is the last iMac with a removable GPU MXM card.

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i understand this, but thereare no better gpu's available for your mac.

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The question was more about the video RAM "GPU from 512MB to 2GB"

If he wanted to he could jump to the higher model 2012 logic board which has: NVIDIA GeForce GTX 675MX graphics processor with 1 GB of dedicated GDDR5 memory, the low end model only has 512 MB. 1 GB is the best you could do in 2012 series.

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But then you have to ask yourself if it's going to be compatible or not.

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Not following you here, all of the 2012 iMac13,2 logic boards are interchangeable.

To be honest, I don't think its worth it, I would just buy a newer system if this is important and sell this one.

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It may be possible to change the entire logic board in the iMac but that would be both expensive and impractical. As Jake suggested, an eGpu would be a better option if your iMac allows it.

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The older Thunderbolt eGPU's are no longer on the market anymore. The ones being sold now are the Thunderbolt 3 USB-C versions.

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You might be able to source a used one on ebay. Besides it was just an idea

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@stegelast0 - It wasn't a bad idea! Just hard to find the needed hardware.

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florian-lang will be eternally grateful.
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