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External graphics cards work on the Raspberry Pi

AMD Radeon HD 7450 Graphics card with Raspberry Pi Compute Module 4

In October 2020, after Raspberry Pi introduced the Compute Module 4, I started out on a journey to get an external graphics card working on the Pi.

At the time, it'd been over a decade since the last time I'd built a PC, and I had a lot to learn about PCI Express, the state of graphics card drivers in Linux, and PCI Express support on various ARM SoCs.

Mac Studio is 4x more efficient than my new AMD PC

Last month, I built an all-AMD PC to try out Linux Gaming with Steam and Proton, and so I'd have a faster native Linux build machine for my various compilation tasks.

This month, Apple introduced the Mac Studio, and as a now full-time video producer, it was a no-brainer for me to upgrade from an M1 Mac mini.

Mac Studio M1 Max Hero

My Mac Studio arrived Friday, and over the weekend, I spent some time benchmarking it against not only my M1 mini, but also my new AMD Ryzen 5 5600x PC build.

My Mac Studio's specs:

Three more graphics cards on the Raspberry Pi CM4

Last year I tested two older graphics cards—a Radeon 5450 and a GeForce GT710—on a Raspberry Pi Compute Module 4.

Jeff Geerling holds NVidia and ASRock Rack GPU and Raspberry Pi Compute Module 4 with quizzical look

This year, I've been testing three more graphics cards—a GeForce GTX 750 Ti, a Radeon RX 550, and the diminutive ASRock Rack M2_VGA.

The Compute Module 4, if you didn't know already, exposes the BCM2711's single PCI express lane, and the official IO Board has a nice, standard, 1x PCIe slot into which you can plug any PCI express device.

External GPUs and the Raspberry Pi Compute Module 4

The Raspberry Pi Compute Module 4 eschews a built-in USB 3.0 controller and exposes a 1x PCI Express lane.

The slightly older Raspberry Pi 4 model B could be hacked to get access to the PCIe lane (sacrificing the VL805 USB 3.0 controller chip in the process), but it was a bit of a delicate operation and only a few daring souls tried it.

Raspberry Pi Compute Module 4 with Zotac Nvidia GeForce GT 710 GPU

Watch this video for more detail about my experience using these GPUs on the CM4:
GPUs on a Raspberry Pi Compute Module 4!

Fixing a 2011 MacBook Pro booting to a Grey Screen - AMD Radeon Video Glitch

I've been a Mac user for years, and I've repaired hundreds of different Macs, from the early II series to the latest 2015 and 2016 model MacBook Pros, iMacs (and other Apple hardware to boot!), and there is almost never a hardware situation where I've thrown in the towel and told someone to ditch their Mac.

The 2011 MacBook Pro has, for almost a decade, been the exception to that rule. There was a major flaw in the AMD Radeon GPUs included with that model year's logic board which seemed to cause GPU failure either due to overheating, internal chip problems, BGA solder joints getting broken, or a combination of the above. The problem was so rampant, Apple was forced to set up a free repair program for affected MacBook Pros—though the 2011 model has since been dropped from that program. I've handled three 2011 MacBook Pros (none of them my own—I had an Air back then), and all three of them were scrapped because of the GPU issue.