AMD Radeon RX6900 XT 16 GB GDDR6 (reference RX 6900 XT)

Out of stock
€609.00 €729.00

Very rare reference AMD model with just 2x 8-pin PCIe power connectors.


The fastest ever possible graphics card for Mac Pro 4,1/5,1 exclusively from MacVidCards Europe. Features the latest Navi21 chip from the RDNA2 family and insane 16 GB of GDDR6 memory.


Native EFI boot screen. You no longer need any software patches to see boot picker or boot screen. Patcher is only need for macOS installation.


Only our modified cards are able to work normally in these models. Standard PC cards won't even boot inside Mac Pro.


Supports macOS Big Sur 11.4 or later and macOS Monterery 12.0.1 or later (12.2.1 recommended). Also supports Windows 10/11 in UEFI and legacy mode with resume/suspend working. No support for macOS Ventura or macOS Sonoma yet.


HDMI/DisplayPort Audio support under macOS and Windows out of the box. No patches needed.


Metal performance:

- 127% faster than the previous generation RX 5700 XT

- 188% faster than Vega 56

- 232% faster than RX 580


Requires extra SATA power from one of the HDD bays (or optical bay) or Pixlas mod. See installation manual.


Card is 2,5-slot wide so it will block nearby PCIe slot inside Mac Pro.


System requirements:

- Apple Mac Pro 4,1 (2009) or Mac Pro 5,1 (2010-2012) with BootROM
- installed macOS Big Sur 11.4 (Big Sur) or newer (installed via any patcher or moved from other supported Mac)
- native support by macOS Big Sur and Monterery, no drivers needed

- no support for macOS Ventura or Sonoma yet


Key features:

- compatible with macOS and Windows (via BootCamp)
- supports Apple boot screen (gray screen with Apple logo on startup) on all ports (also on 4K displays)
- uses internal Mac Pro power supply
- supports PCI Express 2.0 link under macOS and Windows
- supports four displays simultaneously: 2x DisplayPort 1.4, 1x HDMI 2.0, 1x USB-C
- supports 4K/5K/8K@60Hz via DisplayPort, and USB-C or 4K@60Hz via HDMI
- supports Metal, OpenCL and OpenGL in applications and games
- allows Windows 10/11 installation in UEFI mode
- supports sound via HDMI and DisplayPorts under macOS


Technical specification:

- graphics processor clock: 2015 MHz + 2250 MHz boost
- memory speed: 2000 MHz
- amount and type of memory: 16 GB GDDR6
- bus width: 256-bit
- bus: PCI-Express 2.0 x16
- TDP: 300W (requires extra SATA power or Pixlas mod)
Superb 4K Windows gaming experience at highest detail settings:
Boot screen
  • up to 4K@60Hz via DisplayPort, up to 4K@60Hz via USB-C, up to 4K@60Hz via HDMI
  • Used (flashed)
  • 12 months
Package includes
  • 2x 6-pin Mac Pro PCIe power cable, 6-pin to 8-pin PCIe power adapter, 8-pin to 2x 6-pin power adapter, SATA to 6-pin PCIe power adapter
  • 2x DisplayPort 1.4, 1x HDMI 2.0 (1.4 under macOS), 1x USB-C
  • up to 4 concurrent displays
  • 2015 MHz + 2250 MHz boost
  • 2000 MHz
  • 16 GB GDDR6
  • 256-bit
  • PCI-Express 2.0 x16
  • not supported
  • 8-pin + 8-pin
  • 300 W
  • HDMI Audio, DisplayPort Audio
  • Metal, OpenCL, OpenGL
System Requirements
  • 4,1 (2009), 5,1 (2010-2012)
  • 11.4 (Big Sur or later), 12.1 (Monterey) or later
  • Not needed
  • Yes, via Apple BootCamp (also in UEFI mode)

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