PC World – In late October, China unveiled the worldâs âfastestâ super computer, the Tianhe 1A (although blogger Chrisopher Mims has a few important qualifications as to why âworldâs fastestâ is not entirely accurate). Tianhe 1A runs on more than 7,000 American made nVidia graphics chips and over 14,000 traditional CPUs. It can make well over 1,000 trillion calculations per second and can get up to 4.7 petaflops at peak performance.