Features: 1. Single-core ARM Cortex-A7 32-bit core, integrated NEON and FPU 2. Built-in Rockchips self-developed fourth-generation NPU, with high calculation accuracy and support for int4, int8, and int16 mixed quantization. The computing power of int8 is 0.5 TOPS, and int4 can reach 1.0 TOPS 3. Built-in self-developed third-generation ISP3.