UPMEM develops processing-in-memory chips and acceleration solutions for big data and AI workloads. Its next-generation LPDDR5X device integrates RISC-V cores, a Tensor Unit and latency optimization technology.
UPMEM is a fabless company that integrates general-purpose 32-bit RISC cores, which it calls DRAM Processing Units, directly inside DRAM chips, delivered as standard DDR4-2400 DIMMs with eight DPUs per PIM-enabled chip and 24 hardware threads per DPU at 350 to 500 MHz. It was the first commercially available general-purpose processing-in-memory platform and has been independently studied in academic literature, including work associated with Onur Mutlu at ETH Zurich, which is the strongest non-company validation available. Company claims are 10x to 20x acceleration on memory-bound workloads at roughly 10x lower energy for genomics, analytics, search and model inference. The forward programme is a next-generation LPDDR5X PIM device aimed at on-device generative AI for smartphones, for which it selected Semidynamics RISC-V cores with a Tensor Unit on 2024-12-09, quoting 102.4 GB/s internal bandwidth, 1 pJ per bit access energy, 8 TFLOPs FP16 and 16 TOPS int8 per chip, all company-sourced. The concern for the registry is silence: no dated funding, product, customer or partnership act was found for 2025 or 2026. Revisit trigger: a new funding round, LPDDR5X silicon tape-out or sampling, or a named smartphone or memory-maker customer.
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UPMEM develops processing-in-memory chips and acceleration solutions for big data and AI workloads. Its next-generation LPDDR5X device integrates RISC-V cores, a Tensor Unit and latency optimization technology. UPMEM is a fabless company that integrates general-purpose 32-bit RISC cores, which it calls DRAM Processing Units, directly inside DRAM chips, delivered as standard DDR4-2400 DIMMs with eight DPUs per PIM-enabled chip and 24 hardware threads per DPU at 350 to 500 MHz. It was the first commercially available general-purpose processing-in-memory platform and has been independently studied in academ
UPMEM is on the AI Core watchlist list of Frontier Tech Intelligence with a score of 46 out of 100, below the Top 100.
UPMEM is based in Grenoble, Auvergne-Rhône-Alpes, France.
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