Nvidia also announced a new rack full of BlueField-4 DPUs, one of the seven new chips that Nvidia touted as making up the new AI supercomputer. The BlueField-4 STX is the first rack-scale implementation of Nvidia’s new CMX (context memory storage) platform, which expands GPU memory from HBM into primary NVMe storage. It unveiled CMX in January, and Nvidia’s storage partners, such as VAST Data, which presented on its CMX storage offering at its conference a few weeks ago, are beginning to adopt it via the Nvidia STX reference architecture.
“The STX is a high-bandwidth, shared layer optimized for storing and retrieving the massive key value cache data generated by agentic workflows,” Buck said. “This is a reference architecture. While Nvidia is not going to be providing it directly, we’re providing [the reference architecture] to all of our storage partners and the entire storage ecosystem so that they can build the next generation of storage for AI factories that has 4x the performance per watt, double the pages per second for enterprise data, and delivering 5x the tokens per second of context memory necessary for AI factories running agentic workflows.”
Cloudian, DDN, Dell Technologies, Everpure (forerly Pure Storage), Hitachi Vantara, HPE, IBM, MinIO, NetApp, Nutanix, and WEKA are all building new storage on the BlueField-4 STX reference architecture, Nvidia said, while companies like CoreWeave, Crusoe, IREN, Lambda, Mistral AI, Nebius, Oracle Cloud Infrastructure (OCI), and Vultr are adopting it.
All told, Nvidia is showcasing seven new chips at GTC that each have a role for powering AI in the Vera Rubin platform. This includes Vera CPU, Rubin GPU, NVLink 6 Switch, ConnectX-9 SuperNIC, BlueField-4 DPU, Groq 3 LPU, and SpectrumX CPO, the new co-packaged optics Ethernet switch that delivers 200 Gbps connectivity over silicon photonics. Nvidia announced the SpectrumX chip at GTC 2025, and it’s now in production, CEO Jensen Huang said in his keynote.
Beijing Qianxing Jietong Technology Co., Ltd.
Sandy Yang/Global Strategy Director
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