Portable Datacenter Rig: Running Qwen3.8-27B with 200K+ Context Locally
Special-Wolverine · reddit · 2026-08-26
A user shared a portable local computing setup for running Qwen3.8-27B-BF16 with over 200K context length, fitting all gear into a lunchbox. The rig features a Ryzen 7745HX CPU and a 96GB VRAM RTX Pro 6000 Blackwell GPU. Benchmarks show a prefill speed of 1715 tok/sec (processing 175K tokens in 102s) and a generation speed of 45 tok/sec, with temperatures staying under 80°C. The author notes that BF16 precision significantly outperforms quantized versions for sensitive tasks like legal document OCR, exceeding the performance of Gemini Pro and ChatGPT 5.6 Sol.
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