HBM4 2048-Bit Memory Could Dramatically Increase Bandwidth: Report

AMD
(Image credit: AMD)

High-bandwidth memory (HBM) has come a long way in less than 10 years it has been on the market. It dramatically increased its data transfer rate, increased capacity by orders of magnitude, and gained a plethora of features. There is another major change incoming and this one is going to be drastic: next generation HBM4 memory stacks will feature a 2048-bit memory interface, according to a DigiTimes report citing Seoul Economy.

Increasing interface width from 1024-bit per stack to 2048-bit per stack will be the biggest change HBM memory technology has ever seen. Since 2015, all HBM stacks have featured a 1024-bit interface. But since the information comes from an unofficial source, it should be taken with a grain of salt.

There is also a concern that yields of KGSDs with a 2048-bit interface will decrease as it is harder to produce memory stacks with thousands of through silicon vias (TSVs), but the report says that Samsung and SK Hynix are confident that they will be able to achieve a '100%' yield with the new type of memory.

Anton Shilov
Contributing Writer

Anton Shilov is a contributing writer at Tom’s Hardware. Over the past couple of decades, he has covered everything from CPUs and GPUs to supercomputers and from modern process technologies and latest fab tools to high-tech industry trends.

  • pclaughton
    There is no smoke without fire.
    Hooboy. Welcome to the internet. I don't want to ruin the surprise for you.
    Reply
  • bit_user
    we would consider this information with caution. Yet, there is no smoke without fire.
    Just because they might be considering the change doesn't mean it's a done deal, at least for HBM4.
    Reply
  • Soul_keeper
    Any company that claims '100%' yield is probably lying.
    Or the report is dubious, because they'd never claim that.
    Reply