In June 2018, 56 percent of the additional flops were a result of NVIDIA Tesla GPUs running in new supercomputers.
Most of the added supercomputing power came from three top systems new to the list: Summit, Sierra, and the AI Bridging Cloud Infrastructure (ABCI).
Summit surpassed the 93-petaflop Sunway TaihuLight with a Linpack score of 122.3 petaflops. Summit is powered by IBM servers, each one equipped with two Power9 CPUs and six V100 GPUs. According to NVIDIA, 95 percent of the Summit's peak performance (187.7 petaflops) is derived from the system's 27,686 GPUs.