NVIDIA's silicon photonics interconnect technology is expected to replace the traditional optical interconnect, and Spectrum-X Ethernet Photonics' rundown shows how big a role it will play in scaling AI compute.

NVIDIA's Photonics Bring In a Whopping 3.5X Increase in Power Efficiency, Catering to Limitations of Optical Connections

When the industry talks about silicon photonics, the implementation is more focused on D2D interconnects and how hardware manufacturers like AMD or Intel will use it; however, NVIDIA has other plans.

Image Credits: NVIDIA

In a detailed rundown at Hot Chips 2025, NVIDIA presented its next-gen Spectrum-X Ethernet Photonics interconnect, which features massive improvements when it comes to scaling AI factories, and more importantly, ensuring that implementation

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