Published on August 11, 2025, the Maix4-HAT for Raspberry Pi 5 combines an AXera AX650N NPU and 8 GB of LPDDR4x RAM to accelerate Transformer models at the edge.
Published on August 11, 2025, the Sipeed Maix4-HAT adds an AXera AX650N NPU to Raspberry Pi 5, with advertised performance of up to 72 TOPS in INT4 or 18 TOPS in INT8, plus 8 GB of LPDDR4x memory. The board was presented as a way to accelerate Transformer-based models in edge AI applications.
The material describes a compact platform for engineers to evaluate quantized Transformer inference at the edge; it does not detail comparative tests or performance results in specific applications. Consult Sipeed’s original announcement and check the manufacturer’s technical materials for specifications and usage conditions before selecting the board or planning an evaluation.