Broadcom's headline silicon for SUE is the newly announced Tomahawk Ultra, a 51.2 Tbps switch ASIC that's been specifically tuned to compete with Nvidia's InfiniBand in traditional supercomputers and HPC clusters, as well as NVLink in rack-scale-style deployments akin to Nvidia's GB200 NVL72 or AMD's Helios.

According to Broadcom, Tomahawk Ultra achieves a switch latency of 250 nanoseconds at a full 51.2 terabits per second of throughput. It supports line-rate switching for packets as small as 64 bytes and can handle up to 77 billion packets per second.