Under the weight of sustained US export controls on advanced semiconductors, China’s AI chipmakers are battling to forge a self-reliant silicon ecosystem capable of breaking Nvidia’s stranglehold on the market.At the centre of this rivalry is a fundamental design debate: Should the country rely on the versatile graphics processing unit (GPU) or pivot to the highly specialised application-specific integrated circuit (ASIC)?The fight is no longer about finding a single Nvidia clone; it is about...