While the world looks towards silicon photonics for AI computing products, it seems like the NVIDIA CEO isn't too optimistic about it, as he is betting on copper for now.
NVIDIA's CEO Wants to Rely On Copper For Several Years To Come, Avoiding the Highly Anticipated Silicon Photonics
For those unaware, silicon photonics refers to a next-gen adaptation of traditional copper transmission cables. It combines laser and silicon technology to provide a solution that guarantees high data transfer speeds. NVIDIA is using the technology to improve interconnect latency and create high-bandwidth connections between CPU and GPU. However, it seems like Jensen isn't too confident with silicon photonics packaging yet, as he reportedly wants to stick to the traditional copper technology for years to come.
Jensen does say that they are working with TSMC to develop silicon photonics, but the technology seems several years away. We do know that NVIDIA is developing technologies around the interconnect, such as the Quantum-X Photonics, which is a networking switch platform that was claimed to be released sometime this year. Similarly, NVIDIA is also developing Spectrum-X Photonics, which are Ethernet switches, that are expected to debut by 2026.
This shows that NVIDIA has positioned its portfolio around silicon photonics, but it seems hesitant to take a leap right now, especially given the industry's demand for computing. Now, for Team Green, silicon photonics could prove to be effective if the firm manages to integrate it within individual GPU tiles, allowing for higher scalability and performance. This move would require a ground-up architectural revision, which is why Jensen says that the world should rely on copper in the coming years.
It would be interesting to see how NVIDIA and others in the industry utilize silicon photonics in actual architectures since this technology could bring massive computing power. We estimate full-scale solutions arriving in the market by the end of the decade, but for now, NVIDIA wants to go a long way with copper interconnect.
About the author: Muhammad Zuhair is a hardware and technology reporter for Wccftech, specializing in the semiconductor industry and the complex interplay between technology, manufacturing, and geopolitics. His coverage focuses on the corporate strategies and technological roadmaps of industry giants like TSMC, NVIDIA, Samsung, and Intel. Zuhair's expertise lies in deconstructing complex topics such as fabrication nodes (e.g., 2nm process), the economic impact of policies like the CHIPS Act, and the strategic development of AI infrastructure from NVIDIA, AMD and Intel.
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