A Startup Just Put 330 GB of DRAM On a Single Die — No HBM Needed

2026-06-30 · 4 min read

The PFG-1 Sophon is a 750 mm2 monolithic 3D chip built on a 2D transition-metal dichalcogenide platform that eliminates HBM entirely with 330 GB of on-die memory at 191x the bandwidth.

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A Startup Just Put 330 GB of DRAM On a Single Die — No HBM Needed

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