While the new generation GPU upgrades are costly, the discounted PCIe 3.0 supporting graphics cards can still offer stellar gaming performance. Instead of choosing the best graphics card available ...
This showed that the Raspberry Pi would happily talk with a VL805-based USB 3.0 PCIe expansion card, as well as a Realtek RTL8111-based Ethernet card, but not a number of other PCIe cards.