direct connect port speed

For Hosted connection you would work with AWS DX partner therefore you would need to check with the partner you will be working with.

Hosted connections are logical connections that an AWS Direct Connect Delivery Partner provisions on your behalf. When using hosted connections, you connect to the AWS network using one of the partner’s ports. You request a hosted connection by contacting an AWS Direct Connect Delivery Partner directly.

Note also couple of important points regarding Hosted connections, reference:

You cannot change the port speed after you create the connection request. To change the port speed, you must create and configure a new connection.

AWS uses traffic policing on hosted connections, which means that when the traffic rate reaches the configured maximum rate, excess traffic is dropped. This might result in bursty traffic having a lower throughput than non-bursty traffic.

Also take a look at this document - https://d0.awsstatic.com/aws-answers/aws-network-connectivity-over-mpls.pdf