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NPUs stopped being an accessory and became the component that defines real performance in laptops, phones, and small servers. A practical look at the hardware that rules 2026, which workloads pay off, and where the traditional GPU still wins.
Phi-3 is Microsoft Research's family of small language models aimed at the edge, and it competes directly with Llama 3.2, Gemma 2 and Qwen 2.5. Phi-3-mini holds 3.8B parameters and, quantized to 4 bits, fits in about 2 GB, running on a CPU with a neural accelerator, an integrated GPU or an NPU.
Neural processing units have stopped being a marketing label on Snapdragon, Apple Silicon and AMD Ryzen AI laptops. Here is what you can actually do from code today, which tools are mature, and when it pays off to target the NPU instead of the CPU or GPU.
