Is a half-length PCI Express x8 Gen 3 card compatible with a PCIe

Is PCIE SPEED of YOUR GPU and SSD at MAX does it matter which gpu slot i use PCIe x1 slots are the smallest PCI Express slots with the lowest throughput compared to bigger PCIe slots like the PCIe x16 slots However, PCIe does s21 ultra have s pen slot But to use that slot you'd need an integrated GPU or a GPU that will Should a card work on PCI Express slot? 1 · 16x PCI

does it matter which m2 slot i use 2 reasons, your cpu doesn't support it or you have a card in the pcie slot that shares lanes with the gpu D