- Rubin Ultra GPUs preview on Nvidia GTC 2025 with Kyber Rack Mockups
- Each NVL576 -Rack may include 576 GPUs across four internal bellows
- Projected power pull reaches 600 kW with performance target of 15 eflops
At NVIDIA GTC 2025, the company gave the company a preview of what its future data center hardware could look like, and showcased mockups of its Rubin Ultra GPUs that were the house in the Cyber-based NVL576 racks.
These systems are expected to be launched in the second half of 2027, and although it is still a bit away, Nvidia is already laying the reason for what it describes as the next phase of AI infrastructure.
A single NVL576 rack could, according to Jensen Huang, co-founder, president and CEO of Nvidia withdraw up to 600 kW. That’s five times more than the 120 kW used by current Blackwell B200 racks, suggesting a steep increase in power per day. Rack in the future.
Drives the future
Toms Hardware Reports, “Each Rubin Ultra -rack will consist of four ‘bellows’, each of which will deliver more calculation effect than a whole Rubin NVL144 -Rack. Each pod will hold 18 blades, and each leaf will support up to eight Rubin Ultra GPUs -along with two Vera CPUs, although it was not explicit State. 576. “
The Kyber Rack infrastructure supports these systems along with upgraded NVLink modules that will have three next generation NVLink connections each, compared to only two found in existing 1U rack mounting devices.
The first Rubin NVL144 systems launched by 2026 will rely on existing Grace Blackwell infrastructure. Rubin Ultra arrives in 2027 with far more density.
Toms Hardware Says NVL576 -Racks are scheduled to deliver “Up to 15 Eflops of FP4” in 2027 compared to 3.6 EFLOPS from next year’s NVL144 stands.
During the GTC 2025 -keynote, Jensen Huang said that future racks could eventually demand full megawatt power, which means 600 kW may be just a springboard.
When the power climbs against the Megawatt series, questions inevitably grow about how future data centers will be driven.
Atomic energy is an obvious answer – like Amazon, Meta and Google are part of a consortium that has promised to triple nuclear output by 2050 (Microsoft and Oracle are missing especially at the moment), and mobile micro -nuclear systems are expected to arrive in the 2030s.
