HBM4 could double memory bandwidth to 2048-bit [TechSpot]

HBM2 doubled potential speeds to 256 GB/s per stack and maximum capacity to 8 GB. In 2018, HBM2 received a minor update called HBM2E, which further increased capacity limits to 24 GB and brought another speed increase, eventually hitting 460 GB/s per chip at its peak.Read Entire Article