Hmm, the user is asking about deploying the Qwen3-coder inference service, specifically about the weight file size, minimum VRAM requirements, and how many H20 and 910B NPU cards would be needed.
Let me break this down. First, I need to identify which Qwen3-coder model the user is referring to. From the search results, there's a Qwen3-Coder-480B-A35B model mentioned explicitly. That seems like the flagship model for coding tasks.
Looking at the VRAM requirements, for a 480B parameter model in BF16 format, the rough calculation would be 480B * 2 bytes = 960GB just for weights. But that's impractical since no single GPU has that much VRAM. The search results mention deployment on multiple H20 cards, so I'll need to consider distributed inference.
For H20 cards, each has 96GB VRAM. The 480B model would require at least 10 cards just for weights (960GB / 96GB per card). But we also need to account for KV caching and other overhead, so likely more cards would be needed in practice.
For the 910B NPUs, the search results don't specify VRAM, but based on Huawei's documentation for similar NPUs, they might have around 64GB VRAM. That would mean at least 15 cards for weights alone.
The user seems technical - probably a developer or sysadmin planning deployment. They might be comparing hardware options. I should mention that quantization could reduce requirements significantly, and that the actual deployment would require frameworks like vLLM or TensorRT-LLM for efficient distribution.
I recall one search result mentioned "4张H20即可部署Qwen3满血版" (4 H20 cards for full Qwen3 deployment), but that was for the 235B model, not the larger 480B coder variant. Important to clarify that distinction.
The 910B NPU cards are mentioned in Huawei's documentation but I don't have specific VRAM figures. Need to indicate this uncertainty while providing reasonable estimates based on comparable hardware.
基于搜索结果,Qwen3-Coder 系列模型中最强大的版本是 Qwen3-Coder-480B-A35B(总参数 480B,激活参数 35B)。以下是其部署需求的详细分析:
(注:实际下载的模型文件通常已量化,如 Hugging Face 提供的 Qwen3-Coder-480B-A35B 模型文件约 240 GB。)
配置 | H20 卡数 | 910B NPU 卡数 |
---|---|---|
480B 全精度 | 10~12 卡 | 15~16 卡 |
480B 4-bit 量化 | 4 卡 | 4~6 卡 |
优化部署(vLLM/MindIE) | 4 卡 | 4 卡 |
注:以上为理论估算,实际性能需通过测试校准(如阿里云 PAI 或华为 ModelArts 提供预置镜像)。