Nvidia showed a model of the future ruby Ultra GPU with NVL576 Kyber Rack and infrastructure on GTC 2025. They are already intended for shipping in the second half of 2027, over two years, and yet as an infrastructure company AI, Nvidia is already in a way to plan how we are in a few years. This future includes GPU servers, which are so powerful that they consume up to 600 kW per rack.
The current Blackwell B200 server stands already utilize bountiful power, up to 120 kW per rack (give or take). The first solutions of Vera Rubin, scheduled for the second half of 2026, will utilize the same infrastructure as Grace Blackwell, but the next Rubin Ultra solutions intend to enhance the number of GPU four times to the stand. In addition, we could look at solutions with a single stand that utilize up to 600 kW, as Jensen Huang checked during the Questions and Answers session, with full superpodes requiring many power megawatts.
Kyber is the name of the wardrobe infrastructure that will be used on these platforms.
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There are no demanding specifications for Rubin Ultra yet, but there are performance goals. As discussed during a speech and in relation to the road map of the GPU Data Center Nvidia, which goes beyond Blackwell Ultra B300, Rubin NVL144 racks will offer up to 3.6 EFLOPS FP4 application in the second half of next year, with ruby ultra nvl576 in 2027 they will provide 15 Eflts FP4. This is a huge stroke of computing density with power density.
Each Rubin Ultra stand will consist of four “pods”, each of which will provide more computing power than the entire Rubin NVL144 Rubin stand. Each capsule will accommodate 18 blades, and each blade will support up to eight rubies Ultra GPU – along with two Vera processors, probably, although this was not clearly defined. This is 176 GPU for capsules and 576 for a stand.
Nvlink units also get an update and whether each of them will have three fresh generation NVLINK connections, while current NVLink 1U assembly units have only two NVLink connections. Prototypes or mock -ups both Nvlink and Rubin Ultra Blades were exhibited with Kyber stand.
Nobody provided clear power numbers, but Jensen talked about data centers in the coming years potentially needing power megawatts for the server stand. This is not Kyber, but everything that happens can spoil 1 MW to a stand very well, and Kyber aimed at about 600 kW if he maintains the current 1000 ~ 1,400 watts on the GPU of the Blackwell series.
