Cornelis Networks has announced technical details for the CN6000 SuperNIC, an 800 Gbps network adapter designed for high-performance computing (HPC) and artificial intelligence (AI) workloads. The CN6000 is the first network interface card to support Omni-Path, Ethernet RDMA over Converged Ethernet version 2 (RoCEv2), and Ultra Ethernet on a single platform, addressing emerging data center demands for bandwidth, scalability, and protocol flexibility.
The CN6000 delivers up to 1.6 billion messages per second and provides 2X the performance of Cornelis’ previous-generation CN5000. The architecture combines ultra-low latency, maximum throughput, and high message rates, enabling efficient scaling of GPU clusters in data centers. Notably, the CN6000 uses lightweight queue pairs and a RoCEv2 In-Flight (RiF) table within hardware, allowing the device to track millions of concurrent operations, thus offering deterministic latency and bandwidth even as cluster sizes increase.
The adapter is fully compliant with both Ultra Ethernet and RoCEv2, offering a standards-based migration path to next-generation 800 Gbps Ethernet environments. Cornelis reports it has contributed to the Ultra Ethernet Consortium ecosystem, including the development of libfabric, which is now adopted for Ultra Ethernet AI applications, ensuring integration and long-term compatibility with evolving data center networking software.
According to the company, the CN6000 is positioned to integrate with major compute platforms, including Intel Xeon systems, in AI and HPC environments. Cornelis states that the complementary CN6000-series includes Omni-Path switches and director-class platforms for fully integrated end-to-end deployments.
Customer sampling for the CN6000 is expected to begin mid-2026, with production deployments to follow.
Source: Cornelis Networks
