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iMac (Retina 5K, 27-inch, 2019) Radeon Pro 580X 8 GB Can this be upgraded ????
The newer iMac’s don’t offer a MXM slot like the 2011 and older models. You will need to replace the entire logic board to swap out the dedicated graphics chip and its support logic. Your only option is what the given series offered. In your case: AMD Radeon Pro 570XAMD Radeon Pro 575XAMD Radeon Pro 580XAMD Radeon Pro Vega 48 I think you’ll find the cost is prohibitive and likely cheaper just finding a used system with what you want or just get the newer 2020 model.
