bridge rectifier versus center tapped rectifier

Both of them are full wave rectifiers(convert ac to dc)

The bridge rectifier circuit is as shown below

The center tapped rectifier is as shown below

From the above 2 circuits we can state the differences between the two rectifiers

1)First difference we can see is the number of diodes used
bridge-----4 diodes
center tap-----2 diodes

2)Second difference is that of the transformer used
bridge-----normal transformer
center tap---center tapped transformer

3)Peak inverse voltage(PIV)
peak reverse voltage or peak inverse voltage is the maximum voltage that a diode can withstand in the reverse direction without breaking down or avalanching.
PIV(bridge)---Vm
PIV(center tap)---2Vm

Bridge rectifier is always better than center tapped rectifier due to low peak inverse voltage.