
Positron banks $875M to beat GPUs at memory bandwidth
Positron AI just raised $875 million to prove inference doesn't need to choke on HBM forever. THE GIST Positron closed an $875M Series C at roughly a $5B valuation for memory-first Asimov inference chips, per SDxCentral. The LPDDR5X design claims over 90% memory-bandwidth use versus under 30% for GPUs, with TSMC 3nm tapeout targeted by end-2026. THE TAKE This is a bet that inference economics will be decided by memory walls, not FLOPS bragging rights. HBM is scarce, pricey,














