difference between SMALL signal amd LARGE signal bandwidths

[engrvip]

what is the difference between these two types of bandwidths and how can it be found out which of these two is important for a particlar circuit and how much there values differ in a same circuit?????

 

[Verba]

Small signal bandwidth is limited by frequency response of the amp.
Large signal bandwidth is limited by slew rate and frequency response of the amp, and depends on impedance of the load.
Usually small signal bandwidth is enough to be considered, I think.