PCIe Riser Cable to use the PCIe slot under the GPU?

The few minor things I don't like

PCIe NVMe SSD

does the pcie slot matter for gpu Almost all dedicated graphics cards require more power than the typical 75 Watts a PCIe slot provides does not prevent you from changing to

does hellish rebuke use a spell slot PCIe data transfer rates and how it applies to Gaming Graphics cards 2:40 How much