A Look at the Top 10 Most Impressive Super Computers in the USA

Steve Scott, a chief technology officer at Cray Inc, says that computers are capable of supernatural power, with the power to even simulate nature itself. Simulating how molecules interact naturally requires a lot of computing power which is what supercomputers can provide. An assistant professor of chemistry and biochemistry at the University of Delaware, Juan Perilla, acknowledges that without supercomputers, it would take us several lifetimes to achieve the compute results that we’re able to achieve today.

Top 10 Supercomputers in the USA

Supercomputers are ranked using flops, a metric that stands for floating point operations per second. This metric is a measure of how fast a supercomputer can do mathematical equations. Currently, Japan, Switzerland, China, and the US lead in the number of amazing supercomputers. But while the who’s who of brawny computers can go global, here’s the top 10 most impressive supercomputers in the USA.

1. Titan

In 2012, this supercomputer was top of the world until it was edged off the spot by the Chinese. Now at number three, it is operated by the Oak Ridge National Laboratory and leads in the US.


  • 560,640 cores
  • 17,590.0 Rmax
  • 27,112.5 Rpeak
  • 710,144 GB memory
Top 10 Supercomputers in the USA
Top 10 Supercomputers in the USA

2. Sequoia

Sequoia started off at number 17 worldwide back in 2011 so it’s safe to say it’s been around for some time now. What put it at the top was a hardware overhaul, although it only rode in that position for a brief six months. Currently, it sits at the Lawrence Livermore National Laboratory in Livermore.


  • 1,572,864 cores
  • 17,173.2 Rmax
  • 20,132.7 Rpeak
  • 1,572,864 GB memory

3. Mira

In 2012, Argonne National Laboratory in Lemont unleashed this supercomputer, then number three among the world’s best.


  • 786,432 cores
  • 8, 586.6 Rmax
  • 10,066.3  Rpeak
  • Unlisted memory
Top 10 Supercomputers in the USA
Top 10 Supercomputers in the USA

4. Stampede

This supercomputer is home at the Texas Advanced Computing Center in Austin and happens to be among a number of other Texan-named supercomputers from the university.


  • 462,462 cores
  • 5,168.1 Rmax
  • 8,520.1 Rpeak
  • 192,192 GB memory

5. Vulcan

The Lawrence Livermore birthed Vulcan in 2012 then proceeded to upgrade it well into 2013 to what it is now; among the top 10.


  • 393,216 cores
  • 4,293.31Rpeak
  • 393,216 GB memory
Top 10 Supercomputers in the USA
Top 10 Supercomputers in the USA


The Los Alamos National Laboratory is where the Trinity supercomputer calls home. Its main job there is to execute calculations for large scale weapons tests, helping the US test how effective its nuclear arsenal is. It’s still a fairly young computer and a recent entrant.


  • 301,056 cores
  • 8,100.9 Rmax
  • 11,078.9 Rpeak
  • Unlisted memory

7. Cori

The National Energy Research Scientific Computing Center’s flagship, Cori rides high in Berkeley, CA. This supercomputer was named after pioneering biochemist Gerty Cori, a Nobel Prize winner and professor at Washington University.


  • 622,336 cores
  • 14,014.7 Rmax
  • 27,880.7 Rpeak
  • 878,592 GB memory
Top 10 Supercomputers in the USA
Top 10 Supercomputers in the USA

8. Pleiades

Pleiades has had a fair share of upgrades and downgrades since its inception in 2011. Located at NASA’s Ames Research Center, Pleiades is named after a cluster of seven stars that must have really fascinated NASA.

NASA has previously used it to research galaxy formation, streamline space vehicle design, and a lot more.


  • 241,108 cores
  • 5,951.6 Rmax
  • 7,107.1 Rpeak
  • 917,334 GB memory

9. Theta

This is a product of Argonne National Laboratory and the second from this lab to feature on the world’s top 20 supercomputers list.


  • 207,360 cores
  • 5,095.8 Rmax
  • 8,626.2 Rpeak
  • 207,360 GB memory
Top 10 Supercomputers in the USA
Top 10 Supercomputers in the USA

10. Cheyenne

On the National Center for Atmospheric Research’s facility in Boulder, CO, is this latest addition, not so old. Cheyenne supercomputer boasts:

  • 144,900 cores
  • 4,788.2 Rmax
  • 5,332.3 Rpeak
  • 202,752 GB memory


Even though modern computers look like a stack of books in a library, their computing prowess is unmatched. Get your own version of a supercomputer and discover the new HPE DL380 server at Rack Simply.

Dan Mitchell President & Solution Architect at Rack Simply
Dan Mitchell

President & Solution Architect at Rack Simply

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