Why Arria 10 max & min delay difference on the same logic path is much larger than stratix IV?

Hi,

We have four classes of FPGAs to meet your market needs, Intel Stratix, Intel Arria, Intel Cyclone and Intel Max, from the industry’s highest density and performance to the most cost effective. They have different architectures and you will see differences between all the device families.

For Arria 10 device, you can change the output delay chain settings

set_intance_assignment –to -name OUTPUT_DELAY_CHAIN <0..15>

Reference:https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_altera_gpio.pdf

Thanks.