https://wccftech.com/adata-readies-64gb-ddr5-8400-memory-modules-2021-launch/

ADATA has been on the frontlines of developing DDR5 memory for the next generation of Intel processors. They have now enlisted the help of MSI and Gigabyte to ensure that their memory is of the best possible quality and can reach the 8400 MT/s data transfer rate on Intel's next-generation Alder Lake platform.

Many expect the standard for the first iteration of DDR5 to be somewhere in between 4800 and 5200, but ADATA looks to be striving to reach speeds of up to 8400 MHz on the first go and make it the future standard. The promise of DDR5 looks great because it offers a massive performance increase over DDR4 with an increase in data transfer rates. It also provides better efficiency which is to be expected with technological advancements.