Nvidia Clears ‘Big Three’ for Vera Rubin HBM4 Supply

Watch on YouTube ↗  |  June 05, 2026 at 15:57  |  1:21  |  Bloomberg Markets
Speakers
Matt Bloxham — Head of Research, The Block

Summary

Matthew Bloxham discusses Nvidia's certification of three memory chip suppliers for HBM4 memory needed for Vera Rubin AI accelerators. He notes memory is a critical bottleneck and that lining up all three suppliers is encouraging for Nvidia's business. He also warns that suppliers will prioritize Nvidia, causing supply constraints for other customers.

  • Nvidia has qualified three memory suppliers for HBM4 to support Vera Rubin AI accelerators.
  • High-bandwidth memory (HBM) is a critical component for next-generation Nvidia products.
  • The Vera Rubin design requires both GPU and CPU processing power for agentic AI workloads.
  • Memory is in short supply, and having all three suppliers lined up is encouraging for Nvidia.
  • The three memory suppliers will likely prioritize Nvidia over other customers, creating knock-on effects.
  • The certification is a positive sign for Nvidia's ability to bring Vera Rubin to market.
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