What are the advantages of DDR$4$ over DDR$3,$ assuming the same operating frequency? $($Select two.$)$

answer

DDR$4$ accepts sixteen consecutive $64-$bit words per bus clock cycle.

DDR$4$ doubles the data transfer rate of DDR$3.$

DDR$4$ includes a buffer between the data bus and the memory.

DDR$4$ accepts four consecutive $64-$bit words per bus clock cycle.

DDR$4$ uses less power than DDR$3.$