Agilex 5 Premium Dev Kit Ethernet Performance

Hi mapo,

The reason of why you see this performance is due to a know issue of the ES device.

https://docs.altera.com/r/docs/825514/current/agilextm-5-es-device-errata-and-user-guidelines/hps-emif-read-throughput-less-than-target

The EMIF lower performance causing the EMAC to drop performance.

Good news is the production device has fixed this issue. 

Regards,
Kelvin Kah