Nvidia Reveals Blackwell Ultra GPU for AI Training with 20 Petaflops Performance
• 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. • New chips feature 4.5TB HBM4 memory and NVLink 6 interconnect, reducing training costs by 40% for hyperscalers like Microsoft Azure. • Announcement bolsters Nvidia's 92% AI accelerator market dominance amid US export controls on China sales.
arstechnica.com

