High Bandwidth Memory(HBM)
Definition
High bandwidth memory(HBM) is a stacked memory technology. It is standardized and offers very broad data channels both inside the stack and between the memory and logic. Up to eight DRAM modules can fit inside an HBM stack, and each module has two channels for communication. The current version can include up to four chips, which are around 40 DDR cores in a smaller amount of space.