I want to install macos Mojave/Catalina but my gpu doesn’t support the software, so i was looking into buying a egpu because I do not want to take apart my iMac and I was wondering what the best egpu would be to get. Looking for cheapest but still good performance
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
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@dp301, What software/task are you planning to use the eGPU for? Will you connect an external monitor to the eGPU?
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2020 13" MacBook Pro [10th,4C,G] + RX 6700 XT @ 32Gbps-TB3 (CM MasterCase EG200) + Win10 1903 [build link]
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
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@dp301, buying an eGPU doesn’t allow you to upgrade to higher (unsupported) versions of macOS.
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2019 13" MacBook Pro [8th,4C,U] + RX Vega 64 @ 32Gbps-TB3 (Mantiz Venus) + macOS 10.14.6 & Win10 [build link]
1)
There are eGPU 3 builds that use the iMac 2011:
https://egpu.io/forums/builds/imac-21-5-inch-mid-2011-2-5ghz-with-amd-6750m-gtx-1050ti-sc-4gb-akitio-thunder2-macos-and-windows-10/
https://egpu.io/forums/builds/mid-2011-21-5-imac-rx460-2gb10gbps-tb1-akitio-thunder2-macos-padams35/
https://egpu.io/forums/builds/mid-2011-imac-akitio-thunder2-build/
2)
There's a thread for upgrading the GPU but it's complicated so you don't want to go that way:
https://forums.macrumors.com/threads/2011-imac-graphics-card-upgrade.1596614/
3)
You can install Catalina to unsupported Macs but it won't behave well with the original iMac 2011 dGPU?
https://forums.macrumors.com/threads/macos-10-15-catalina-on-unsupported-macs.2183772/
People have successfully combined #1 and #3.
I haven't seen anyone try combining #2 with #3. I think it should be possible but might take a lot of work? You'll probably have to disable the built-in display.
Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case