Broadcom's new Tomahawk Ultra networking chip targets AI and high-performance computing markets, challenging Nvidia's dominance. The chip delivers ultra-low latency (250 nanoseconds), 51.2 Tbps throughput, and supports interconnecting 512 devices. Unlike Nvidia's proprietary NVLink, Tomahawk Ultra uses standard Ethernet protocols while matching performance requirements. This innovation represents a significant advancement in Ethernet technology for AI infrastructure, potentially reshaping how large-scale AI systems are built by cloud providers and enterprises.