difference between router and filter transformation

 difference between router and filter transformation in informatica?

Filter                                                                                                      Router

• we can write only one condition                                we can write multiple conditions
• we can't capture rejected rows                                   we do capture rejected rows with default group
• there are no group in filter                                         router has three groups i/p, o/p, default group
• filter read input data multiple times                           router reads input data only onetime
• performance less                                                        performance more