For instance, here he’s using an STM32 Discovery board to drive an AMD Radeon HD 2400 graphics card. The ARM microcontroller isn’t actually using the PCIe interface on the card. Instead ...

As long as you accept needing to supply external power with even a low-end GT 1030 card – as the PCI slot cannot provide ... but with only 4 GB of system RAM and an old Athlon quad-core CPU ...