Top positive review
Compatible with Mac Pro 5,1 & macOS Mojave!
November 5, 2018
I purchased this card as an upgrade from the stock ATI 5770 1 GB that typically came pre-installed in Mac Pro 5,1 towers. Installation was plug and play. I did need to purchase an additional 8 pin (GPU Power connector) to dual-mini 6 Pin (AUX power connector on Mac Pro Logic Board) in order for the card to receive power. I did have a minor hiccup when upgrading from High Sierra to Mojave as a firmware update needed to be completed as part of the OS upgrade process. After an hour or so, I was able to get Mojave up and running perfectly fine. As it is not originally a "Mac GPU" you are not able to get the Apple logo boot screen or hold option and see other boot options (recovery partition, or external startup disks) but I believe you can do this blindly and guess by which arrow key and enter key you pressed. Aside from that, the card works great and the drivers are natively supported in Mojave so I have no complaints about its performance.