Why Mini PCs Beat Big GPUs at 70B LLMs: Unified Memory Wins
Unified‑memory SoCs let a $2k mini PC hold a 70‑billion‑parameter model that a RTX 5090 can’t, because the whole 128 GB pool acts like VRAM. The trade‑off is bandwidth: the chip’s 256 GB/s is a fraction of a high‑end GPU’s, so inference runs far slower. This shows capacity can outweigh raw speed for local LLM deployment.