DDR5 memory improves on DDR4 with speeds starting at 4800MHz and scaling up to 6400MHz, offering 50% more bandwidth. It consumes 20% less power at 1.1V, enhancing efficiency for laptops and servers. DDR5 also includes on-board Power Management ICs for better power regulation and signal integrity, and integrates an advanced SPD EEPROM to optimize memory control and reduce bus load.