When comparing both DDR4 and DDR5 bandwidths at 3200MT/s, a system-level simulation shows  DDR5 has a 1.36-times increase in effective bandwidth. When Increasing to the 4800MT/s data rate，DDR5 expected to be available for effective bandwidth jumps to 1.87-times than DDR4 3200MT/s；

How does DDR5 improve performance compared to DDR4?

1）DDR5 Increased data burst length to 16

2）DDR5 Increased banks and banks groups

3）Improved refresh schemes

4）Optimized DRAM core timings

5）On-die error correction code