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Guides and repair information for assorted graphics cards, also known as video cards, graphics adapters, or display adapters.

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How much memory is on the replacement graphic card listed on your site

I’d like to know how much graphic memory is on the replacement graphic card you have listed for the 27 inch, mid-2011 iMac.

Thanks,

Dan

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This question was migrated from https://www.ifixit.com/Answers.

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There are three versions of GPU boards this series had:

  • AMD Radeon 6770 with 512 GB - 661-5967
  • AMD Radeon 6970 with 1 TB - 661-5968
  • AMD Radeon 6970 with 2 TB - 661-5969

You’ll need to ID which board you had a question on by linking the part number I’ve given you here to the part listing.

There are a few other MXM boards that could be used but you need one with the Apple firmware to work properly.

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This is the part number listed on your site: IF174-054-2

But I don’t see any other specs on it.

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You picked the AMD Radeon HD 6750, 512 GB GPU Apple P/N 661-5944 which originally was used for 21.5" iMac A1311. As I stated there are a few other MXM boards that will also work this is one of them. The other would be the AMD Radeon HD 6770, 512 GB GPU Apple P/N 661-5945.

FYI - I'm just a volunteer here on the Blog to help people with their problems. I don't represent the IFIXIT Store its self. I'll pass on the fact the P/N is missing from the listing.

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Thank you very much, this is very helpful. I was hoping it was one of the 6970 series.

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Dan Tuck will be eternally grateful.
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