SK Hynix has announced that it is ready to sample its latest form of high bandwidth memory (or HBM), pitched at advanced applications such as research or AI, to its customers. HBM3E is rated to keep up to 10% cooler thanks to the new production technique used to make it. It is also compatible with systems already set up to use the preceding HBM3.https://www.notebookcheck.net/SK-Hynix-announces-launch-of-1TB-s-HBM3E-memory-for-next-gen-AI-puposes.742980.0.html
This should be mainstream memory for mainstream PCs by 2023...