High Bandwidth Memory (HBM) is the commonly used type of DRAM for data center GPUs like NVIDIA's H200 and AMD's MI325X. High Bandwidth Flash (HBF) is a stack of flash chips with an HBM interface ...

Finally, the ._user_heap_stack part, which is provided with some information that allows the linker to check that there is enough RAM and FLASH on the device for our code.

SK hynix unveils the industry's first 16-Hi HBM3E memory, offering up to 48GB per stack for AI GPUs with even more AI memory in the future.