comma.ai 8月12日推出 chestnut 外置 eGPU 扩展坞，单机249美元，含 AMD RX 9060 8GB 套件799美元。创始人乔治·霍茨曾破解 iPhone、PS3，创 comma.ai 推开源平价半自动驾驶。chestnut 功耗上限100W，为 comma four 补充推理算力，搭配后接近特斯拉 HW4 水平。
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