A: Yes – a Gen5 device works in a Gen4 slot (at Gen4 speed) and vice versa.
The specification introduces optimizations for active-state power management (ASPM) to ensure that doubling the speed doesn't double the power consumption. pcie specification 5.0 pdf download
: While the base specification is restricted, some related documents like the PCI Code & ID Assignment Specifications are accessible to non-members for free . Key Technical Highlights of PCIe 5.0 A: Yes – a Gen5 device works in