What is the difference, which is correct? They both serve the same function; should we blitz one?
While I caused the problem (see comment on Lauren's answer), I do think information graphic(s) is the standard, established term, and infographic is a a currently fashionable term which tends to be used for a single page of charts which values presentation/whimsy over meaningful display of data.
See also Info-graphics , Informative Graphics and Visualizations: Are they the same term ? and particularly the example linked to.