Hi, I find a Gigabyte Radeon RX 580 Gaming 8GB in one of my dealer at a good price. I want to upgrade the graphic cards of my Mac Pro 5.1. My setup: Mac Pro 5.1(Middle 2010) 3.33 GHz 6-Core Intel Xeon 16 GB 1333 MHz DDR3 Ram Mac OS Sierra 10.12.6 Audio-interface: Motu 828MKII (By firewire). Utilisation: Dubbing/Voice Over with 3x Monitors: 1. One for the sound engineer (With the recording application in my case DP10). Samsung S20D300 19" 1600x900. 2. One for the sound engineer (With the video). Samsung S20D300 19" 1600x900. 3. And one for the actor (With the video) 43" Good resolution. Please let me know your feedback with this card:Gigabyte Radeon RX 580 Gaming 8GB. Any feedbacks are more than welcome. Thanks in advance.