But they weren't finished with their surprise announcement of the new GDDR6X standard, where Micron has now just announced the development of its next generation memory standard: HBMnext. The new HBMnext memory is most likely what HBM3 was meant to be, but possibly with a new name.
Our friends at VideoCardz report: "Micron expects to produce JEDEC-compliant HBMnext memory in 4-stack 8Gb and 8-stack 16Gb densities. The manufacturer also revealed that the data rate is expected at 3.2 Gb/s. For comparison, the NVIDIA A100 accelerator based on HBM2e technology has a bandwidth of 2.4 Gbps, while AMD Radeon VII based on HBM2 features 2.0 Gbps data rates".
- HBM2: 2.4Gbps
- HBM2e: 2.0Gbps
- HBMnext: 3.2Gbps
The company expects to see HBMnext on next-generation graphics cards sometime towards the end of 2022.