How to check bandwidth limit of router and switch

[knaik99]

when we attached 500 Mbps internet link to router V1000 then we got to know that V1000 has bandwidth limit of 250 Mbps only .hence 500 Mbps internet link does not work.

1.how to check bandwidth limit of router and switch ?

is it mentioned in data sheet ?

2.bandwidth limit is related to each port of router i.e. bandwidth limit is related to each port of router and switch right?

3.what is difference between bandwidth limit and throughput of router and switch or both are same 

[pieterh]

bandwith is limited by license
see Cisco 1000 Series Integrated Services Routers Data Sheet - Cisco
section Technology packages and feature licenses

[knaik99]

Can you please explain this table?

[pieterh]

What do you need to know about ?
SD-WAN is an "overlay" on a physical network

for that tunnels are created between ports
because of the tunnel encapsulation (extra heades bytes , extra processing) throughput of SD-WAN is less than a "plain" network