1.6 terabits per second per port switches to deliver 3.5x energy savings and 10x resilience in AI factories.
NVIDIA unveiled NVIDIA Spectrum-X and NVIDIA Quantum-X silicon photonics networking switches, which enable AI factories to connect millions of GPUs across sites while reducing energy consumption and operational costs. NVIDIA has integrated electronic circuits with optical communications at a large scale.
As AI factories expand, networks must adapt to support their growth. NVIDIA photonics switches are the advanced networking solution. They integrate optics innovations with 4x fewer lasers to deliver 3.5x more power efficiency, 63x greater signal integrity, 10x better network resiliency at scale and 1.3x faster deployment compared with traditional methods.
NVIDIA silicon photonics networking switches are available as part of the NVIDIA Spectrum-X Photonics Ethernet and NVIDIA Quantum-X Photonics InfiniBand platforms.
The Spectrum-X Ethernet networking platform delivers superior performance and 1.6x bandwidth density compared with traditional Ethernet for multi-tenant, hyperscale AI factories, including the largest supercomputer in the world.
NVIDIA Spectrum-X Photonics switches include multiple configurations, including 128 ports of 800Gb/s or 512 ports of 200Gb/s, delivering 100Tb/s total bandwidth, as well as 512 ports of 800Gb/s or 2,048 ports of 200Gb/s, for a total throughput of 400Tb/s.
NVIDIA Quantum-X Photonics switches provide 144 ports of 800Gb/s InfiniBand based on 200Gb/s SerDes and use a liquid-cooled design to efficiently cool the onboard silicon photonics. NVIDIA Quantum-X Photonics switches offer 2x faster speeds and 5x higher scalability for AI compute fabrics compared with the previous generation.
A networked ecosystem
NVIDIA’s silicon photonics ecosystem includes TSMC, Browave, Coherent, Corning Incorporated, Fabrinet, Foxconn, Lumentum, SENKO, SPIL, Sumitomo Electric Industries and TFC Communication.
NVIDIA photonics will drive massive growth for a new wave of state-of-the-art AI factories, alongside pluggable optical transceiver technologies supported by industry leaders including Coherent, Eoptolink, Fabrinet and Innolight.
Availability
NVIDIA Quantum-X Photonics InfiniBand switches are expected to be available later this year, with NVIDIA Spectrum-X Photonics Ethernet switches coming in 2026 from infrastructure and system vendors.
For more information, visit nvidia.com.
