LFM3 2B VL
on Snapdragon X Elite X1E-78-100 · GenieX
Summary
User reports LFM3-VL 2B at 32.3 t/s decode and 1616.1 t/s prefill on the Hexagon NPU of a Snapdragon X Elite X1E-78-100 laptop with 64 GB RAM.
Setup is GenieX with Q4_0 GGUF weights, comparing NPU, hybrid NPU+CPU, Adreno OpenCL GPU and ARM CPU backends.
The NPU doubles CPU prefill at 12 W versus 35-60 W, but decode is about half the CPU's 66.5 t/s. Gemma 4 E2B, Gemma 4 26B MoE and Gemma 4 31B were also run on the NPU.