Flashed AMD Radeon RX580 8GB Mac Pro Graphics Video Card

Here for sale is an AMD Radeon RX580 8GB VRAM Graphics Video Card For Apple Mac Pro 4K 2009-2012 flashed with the latest firmware and is compatible in all models of Mac Pro from 2009-2012 (models 4,1 & 5,1) Detailed spec for the card can be found below but i will say that  this has a Dual Link DVI, Dual HDMI and Dual Display Port outputs. You can run multiple 4K displays from this card!

These cards are also compatible with Apple's own Metal 2 API

These are serious cards and are great for 4K video work! They also have the full 5.0GT/s link speed!

There is also full boot screen support from the DVI port (Shows the Apple logo at startup - Useful switching boot drives and bootcamp).

These cards display full EFI boot screens allowing changing of the boot drive if needed:

These are awesome cards for the Mac Pro and also work very well in BootCamp :)

• Graphics Engine - RX580
• Bus Standard - PCI Express x16 3.0
• Memory Type - GDDR5
• Memory Size(GB) - 8
• Memory Interface - 256 bits 
• Up to 1366Mhz Boost Clock
• Memory Clock Speed(MHz) - 8000 
• DVI Output - 1 X (Dual-link DVI-D)
• HDMI-Output - 2 X (version 1.4a)
• DisplayPort - X 2
• HDCP Support
• HDMI Support
• Dual-link DVI
• DisplayPort: 5120×2880@60Hz
• HDMI: 4096×2160@60Hz
• DVI: 2560x1600@60Hz 
• DirectX Version Support - 12
• OpenGL Version Support - 4.5
• Card Dimension(mm) 230X125X40