The article discusses how leading AI chipmakers AMD and Nvidia are advancing their next-generation datacenter GPUs by adopting HBM4 memory technology. This move aims to achieve faster, denser, and more efficient memory to enhance AI training performance. SK Hynix is positioning itself as the primary supplier of HBM4, seeking to capitalize on the increased demand from these major industry players.https://go.theregister.com/feed/www.theregister.com/2025/09/12/sk_hynix_hbm4_mass_production/