mid-2011 iMac 27 graphics issue: Mac Talk Forum: Digital Photography Review
Upgrading an iMac GPU for METAL Support! Late 2009 – Mid 2011 Models - YouTube
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Picked up this iMac (27", mid 2011) i7 @ 3.4GHz , 16 gb ram , 256 SSD in excellent condition for $210. Should I make any upgrades ? GPU, bigger SSD? Thanks : r/LukeMianiYouTube
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Upgrading the graphics in our 2011 iMac (first attempt) - YouTube
How to Upgrade/Replace GPU Graphics Card on Mid-2011 21.5" iMac - YouTube