Boot screen Enabled EFI RX580 8GB Sapphire Nitro+ For Mac Pro Tower 4,1/5,1 - Zephyr's Market
Finally found a great gpu! Paid 600 for it but whatever, I needed it. It's a Sapphire Nitro Radeon RX 580 8GB Special Edition. It performs AWESOME! I'm playing NFS Heat at
Sapphire Unveils Radeon RX 580 NITRO+ Special Edition | eTeknix
Sapphire NITRO+ Radeon RX 580 Limited Edition Video Card Announced - Legit Reviews