Using a PCIe GPU on a PCIe motherboard

So, I intend to build a sub $100 rig for light gaming I already have a GPU

PCIe Vs PCIe on RTX 3060 12GB l 1080p Ad - 0:00 Games : Forza Horizon 5

pcie training error slot 1 The Gen3 4U Value 10-Slot connects your computer with up to 10 PCIe x16 interfaces through 2 PCIe x16 host connections The system supports up to 8

pcie gpu slot In other words, using PCIe 4 means that the graphics card can benefit from a 39% wider bandwidth compared to PCIe 3 Benchmark results in 3DMark