the cards should be the same, -FC is flexible consumption which is licensed based documented here
https://www.cisco.com/c/en/us/products/collateral/routers/asr-9000-series-aggregation-services-routers/datasheet-c78-741260.html
these are lightspeed ba...
the 24x10G-1G is tomahawk, the 4HG is lightspeed. you can check this guide, it depends on the features and chunks used.
https://xrdocs.io/asr9k/tutorials/asr-9000-bng-scale-best-practices/
Hi,Nat is not supported at this time,you can contact cisco sales to get a feature requested or an alternative solution if you require this https://engage2demand.cisco.com/LP=5642?