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Raspberry Pi PCIe Database

Raspberry Pi PCI Express device compatibility database

AMD Radeon RX 7900 XTX 24GB PCIe x16

AMD Radeon RX 7900 XTX 24GB PCIe x16
CM4 Functionality Pi 5 Functionality Driver Required? More Info
None Untested Yes GitHub Issue

Description and Notes

The Radeon RX 7900 XT (“Navi 31”) was released in 2022 and is supported by the open source amdgpu driver in the Linux Kernel, version 6.0 and later. It is also supported by AMD’s Radeon Software for Linux as of the 22.40 version.

It requires a physical x16 PCIe socket. You will need to supply 26A of 12V power (about 315W) to the card directly through it’s separate 8-pin PCIe power plugs.

amdgpu (open source) driver

To get the amdgpu driver loaded, you have to recompile the Linux kernel for Pi OS on the 6.0 branch (rpi-6.0.y) or later.

Go to Device Drivers > Graphics support on the menuconfig step, and select the amdgpu driver to install.

Also make sure you have the AMD firmware installed (sudo apt install -y firmware-amd-graphics) or the driver will complain about missing files.

If you want to be able to boot the Pi all the way, make sure to blacklist the amdgpu kernel module:

sudo nano /etc/modprobe.d/blacklist-amdgpu.conf

# Put this inside the file and save it:
blacklist amdgpu

Now, after a reboot, you can explicitly load the module and see what happens by following dmesg in another terminal session:

sudo modprobe amdgpu

When I do this, the entire system crashes and requires a hard power reset. So far nobody has been able to get beyond the basic initialization due to PCIe memory allocation and access errors on the Pi’s bus.

See the linked GitHub issue for more details.