Memory versus storage. HBM is high-speed memory, which is commonly used for AI processing, and NAND is flash memory, which is the primary technology in solid state drives (SSDs). See
high bandwidth memory and
high bandwidth flash.
HBM vs. DRAM
This compares high-speed HBM with regular dynamic random access memory (DRAM). HBM resides near the GPU for neural network processing, and DRAM is used by the CPU to prepare data and for general orchestration. See
neural network.