Category: PCI Express®
tool:-
Device: Arria® 10


Recommended Speed Grades refer to the speed grades of the FPGA core.
For example, to achieve a Gen3 x8 configuration, the Application Clock must run at 250 MHz, so you must select -1 or -2 for the Core Speed Grade.

Intel® Arria® 10 and Intel® Cyclone® 10 GX Avalon®-MM Interface for PCI Express* User Guide
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_a10_pcie_avmm.pdf
(See Recommended Speed Grades section)