NVIDIA Silicon Photonics
Co-packaged optics-based networking switches with unmatched power efficiency and resiliency.
Introduction
Revolutionizing Networking for the Era of Agentic AI
NVIDIA’s co-packaged optics (CPO) switches with integrated silicon photonics are the world’s most advanced networking solution for the era of agentic AI. Replacing pluggable transceivers with silicon photonics on the same package as the ASIC, NVIDIA CPO innovations provide 5x better power efficiency and 10x higher network resiliency resulting in 5x sustained application runtime.
NVIDIA CPO-based networks simplify manageability and design and enable more efficient-compute infrastructure. These benefits are critical to delivering the scale needed to enter the future of million-GPU AI factories.
NVIDIA Co-Packaged Optics Explained
Take a look inside the new NVIDIA silicon photonics-based networking switches.
Offerings
NVIDIA CPO Architectures
Benefits
Networking for Massive-Scale Infrastructure
NVIDIA CPO introduces many benefits that are necessary to scale to millions of GPU AI factories.
Products
NVIDIA Silicon Photonics Switches
NVIDIA Quantum-X InfiniBand Photonics Switch
The NVIDIA Quantum-X800 InfiniBand platform includes CPO-based switches, including the Q3450-LD with 144 ports of 800 gigabits-per-second (Gb/s) InfiniBand. This groundbreaking switch leverages a liquid-cooled design to efficiently cool the onboard silicon photonics. The NVIDIA Quantum-X InfiniBand Photonics switch supports network innovations that deliver unprecedented scale, connecting over 10,000 GPUs in a non-blocking, two-level fat-tree topology.
NVIDIA Spectrum-X Ethernet Photonics Switches
NVIDIA’s Spectrum-X Ethernet Photonics switches usher in the next era of AI infrastructure by integrating co-packaged optics (CPO) directly onto the ASIC, overcoming the limits of electrical signaling in large-scale AI factories. With up to 409.6 terabits-per-second (Tb/s) bandwidth, Spectrum-X Ethernet Photonics enables massive generative AI workloads. Available in the second half of 2026, it sets a new standard for scalable, energy-efficient Ethernet networks that power million-GPU AI clusters.
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