Insight

Should your edge AI inference run on a DGX Spark or stay on cloud APIs? Anyone who’s run the numbers knows the sticker price is the easy part—the hidden 80% is engineering debt: quantization, inference framework choice, thermals, ops, cross-node RDMA. Cloud is rent; owning GPUs is a mortgage plus renovation. Three self-assessment questions to decide if your workload deserves on-prem—daily token volume, latency sensitivity, model iteration cadence—and how to compute break-even without getting fooled by the GPU spec sheet.

邊緣 AI 推理該買 DGX Spark 還是繼續付雲端費用？算過一次帳的人都知道，硬體不是 sticker price 的問題——是後面 80% 看不見的工程債：模型量化、推理框架選型、散熱、運維、跨機 RDMA。雲端是租金，自有 GPU 是房貸加裝修。三個自評問題判斷你的工作流值不值得 on-prem：日均 token 量、延遲敏感度、模型迭代頻率，以及 break-even 怎麼算才不會被 GPU spec 表騙。