- Rubin Extremely GPUs previewed at Nvidia GTC 2025 with Kyber rack mockups
- Every NVL576 rack could embrace 576 GPUs throughout 4 inside pods
- Projected energy draw reaches 600kW with efficiency targets of 15 EFLOPS
At Nvidia GTC 2025, the firm gave a preview of what its future information heart {hardware} may appear like, showcasing mockups of its Rubin Extremely GPUs housed in the Kyber-based NVL576 racks.
These methods are anticipated to launch in the second half of 2027, and whereas that’s nonetheless a way off, Nvidia is already laying the groundwork for what it describes as the subsequent section of AI infrastructure.
A single NVL576 rack, in accordance with Jensen Huang, co-founder, president, and CEO of Nvidia, may draw as much as 600kW. That is 5 instances greater than the 120kW utilized by present Blackwell B200 racks, suggesting a steep rise in energy per rack going ahead.
Powering the future
Tom’s {Hardware} reviews, “Every Rubin Extremely rack will consist of 4 ‘pods,’ every of which will ship extra computational energy than a whole Rubin NVL144 rack. Every pod will home 18 blades, and every blade will help as much as eight Rubin Extremely GPUs – together with two Vera CPUs, presumably, although that wasn’t explicitly acknowledged. That is 176 GPUs per pod, and 576 per rack.”
The Kyber rack infrastructure will help these methods, together with upgraded NVLink modules which will have three next-generation NVLink connections every, in comparison with simply two discovered in current 1U rack-mount items.
The primary Rubin NVL144 methods, launching in 2026, will depend on current Grace Blackwell infrastructure. Rubin Extremely arrives in 2027 with way more density.
Tom’s {Hardware} says that the NVL576 racks are deliberate to ship “as much as 15 EFLOPS of FP4” in 2027, in comparison with 3.6 EFLOPS from subsequent yr’s NVL144 racks.
Throughout the GTC 2025 keynote, Jensen Huang stated future racks may ultimately require full megawatts of energy, that means 600kW could only be a stepping stone.
As energy climbs towards the megawatt vary, questions are inevitably rising about how future information facilities will be powered.
Nuclear vitality is one apparent reply – The likes of Amazon, Meta, and Google are a part of a consortium that has pledged to triple nuclear output by 2050 (Microsoft and Oracle are notably lacking for the second) and cell micro nuclear vegetation are anticipated to reach in the 2030s.
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