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SK Hynix achieves major breakthrough in HBM4 quality tests, eyes stable supply for Nvidia Rubin

Lillian Chen, Taipei; Eifeh Strom, DIGITIMES Asia Tuesday 3 February 2026 0

Credit: SK Hynix

SK Hynix has reportedly made significant progress in the quality testing of Nvidia's sixth-generation high-bandwidth memory (HBM4) products, boosting the likelihood that it will become a stable supplier of HBM4 for Nvidia's latest Rubin GPUs.

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