Some advanced features required for some of latest types of instances
Intel 82599 Virtual Function (VF) interface
The Intel 82599 Virtual Function interface supports network speeds of up to 10 Gbps for supported instance types.
Elastic Network Adapter (ENA)
The Elastic Network Adapter (ENA) supports network speeds of up to 25 Gbps for supported instance types.
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/enhanced-networking.html