Nvidia Reveals Blackwell Ultra GPU for AI Training with 20 Petaflops Performance
โข Nvidia launched Blackwell Ultra B300 GPUs on April 25, 2026, at GTC US, delivering 20 petaflops FP4 performance for training models up to 10 trillion parameters. โข New chips feature 4.5TB HBM4 memory and NVLink 6 interconnect, reducing training costs by 40% for hyperscalers like Microsoft Azure. โข Announcement bolsters Nvidia's 92% AI accelerator market dominance amid US export controls on China sales.
arstechnica.com