Inside NVIDIA's Silicon Photonics Roadmap
HPCwire, Monday, April 20th, 2026
The incredible demand that AI is placing on technology is forcing changes to be made at every level of the stack. When it comes to moving bits between racks, computer makers increasingly are adopting silicon photonics to get beyond the limitations of copper. This includes Nvidia, which is making a myriad of investments in the area. But many of the decisions have had to be made.
At the recent GTC conference, Nvidia CEO Jensen Huang briefly discussed the company's plans to build NVL1152 'Kyber,' a massive new scale-up machine that will include 1,152 GPUs. Expected with the 'Feynman' generation GPUs that are currently slated to ship in 2028, the NVL1152 machine will represent a 16x increase in processor count over the company's biggest scale-up machine, the NVL72.