Gallery: The top 20 supercomputers in the world

​3. Titan

The US' first entry onto the list was no. one for only a few months in 2012 and was quickly beaten out by Tianhe-2. It has now slipped to no. 3. Titan is operated by the Oak Ridge National Laboratory.

  • Total cores: 560,640
  • Rmax(TFlops/s): 17,590.0
  • Rpeak (TFlops/s): 27,112.5
  • Memory: 710,144 GB

Image: Oak Ridge National Laboratory

By Brandon Vigliarolo

Brandon writes about apps and software for TechRepublic. He's an award-winning feature writer who previously worked as an IT professional and served as an MP in the US Army.