Cisco Unveils a 102.4 Tbps Silicon One G300 Switch Chip
Cisco’s new Silicon One G300 is a 102.4 Tbps switch chip built for AI clusters — it can connect up to 128,000 GPUs with just 750 switches, versus 2,500 before — taking aim at Broadcom and Nvidia.
Cisco has unveiled switching silicon built for the AI era, squarely targeting the networks that lash together giant GPU clusters.
The short version
- The Silicon One G300 is a 102.4 Tbps switch chip.
- Cisco says it can support up to 128,000 GPUs with just 750 switches, versus 2,500 previously.
- Chips, systems and optics are slated to ship later in 2026.
- It takes aim at Broadcom’s Tomahawk 6 and Nvidia’s Spectrum-X.
Why it matters
As AI training clusters balloon, the network fabric becomes a bottleneck — and a major new battleground for chipmakers.
Summary by Nerd News Network. Read the full article at The Register via the links above and below.