A user on Reddit's r/LocalLLaMA subreddit is experiencing significant memory bandwidth limitations when attempting to run the DeepSeek-V4-Flash-0731 model on their Intel Sapphire Rapids workstation. Despite having DDR5-4800 RDIMMs with a theoretical bandwidth of 153 GB/s, the user is only achieving around 36-40 GB/s, hindering inference speeds to 3-4 tokens per second. The user has consulted an AI assistant which suggested a mismatch in CPU thread and batch settings, but even after adjustments, the performance remains suboptimal. AI
IMPACT Highlights potential hardware bottlenecks for running large language models locally, impacting user experience and performance.
RANK_REASON User-reported issue with hardware and specific model performance, not a new release or significant industry event.
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