(
Peta
Bytes per
Second) One quadrillion bytes per second. For example, NVIDIA unveiled its Rubin Ultra NVL576 rack system with the specification "4.6 PB/s HBM4e." That means 576 GPUs, each with 1TB of HBM4e memory for a total memory bandwidth of 4.6 petabytes per second. See
petabyte.