- Rubin Ultra GPU previously prior to NVIDIA GTC 2025 with Kyber shelf models
- Each NVL576 shelf can include 576 GPU in four internal pods
- The projected power raffle reaches 600kw with performance objectives of 15 efflops
In Nvidia GTC 2025, the company gave a preview of how its future hardware of the data center could be, showing models of its GPU Rubin Ultra located in the NVL576 racks based in Kyber.
These systems are expected to be launched in the second half of 2027, and although that is still far away, Nvidia is already laying the foundations for what he describes as the next phase of the AI ​​infrastructure.
A single NVL576 shelf, according to Jensen Huang, co -founder, president and CEO of Nvidia, could get up to 600kw. That is five times more than the 120KW used by the current Blackwell B200 shelves, which suggests a strong increase in the power by shelf in the future.
Feeding the future
Tom hardware Reports: “Each ultra Rubin rack will consist of four ‘pods’, each of which will offer more computational power than a complete Rubin Rack NVL144. Each sheath will house 18 blades, and each blade will admit up to eight GPU Rubin Ultra GPU, along with two vera cpu, allegedly, although that was not explainedly stated.
The Kyber Rack infrastructure will admit these systems, together with the updated NVLink modules that will have three next -generation NVLink connections each, compared to only two that are found in existing Rack 1U assembly units.
The first Rubin NVL144 systems, which will be launched in 2026, will depend on the existing Grace Blackwell infrastructure. Rubin Ultra arrives in 2027 with much more density.
Tom hardware He says that NVL576 racks are planned to deliver “up to 15 FP4 effects” in 2027, compared to 3.6 efflops from the NVL144 racks next year.
During the GTC 2025 key note, Jensen Huang said that future shelves may eventually require megawatts of full power, which means that 600kw can only be a springboard.
As the power goes up towards the range of megawatts, the questions are inevitably growing on how future data centers will feed.
Nuclear energy is an obvious response: the tastes of Amazon, Meta and Google are part of a consortium that has committed to triple nuclear production by 2050 (Microsoft and Oracle are expected to be missing at the moment) and the mobile nuclear micro nuclear plants are expected to reach the 2030s.
