it likely runs at PCIe x8. That’s half the speed, and that’s why the top slot should always get your GPU. Some smaller PCIe slots run at x1 or x4, and these are meant for low-bandwidth add-in ...
For instance, such implementation may be statically configured in a single X8 port or two X4 ports. 4. Selecting PCI Express Port Type Many applications have a very specific use for a PCI Express ...