The Top 10 Supercomputers in the World

A supercomputer may be defined as “a very powerful mainframe computer” according to the dictionary. As the number of processes per second increases, so does a supercomputer’s “power.”

Today, we are excited to explore the top 10 supercomputers in the world that are pushing the boundaries of computational power. These massive machines represent the forefront of scientific research, enabling breakthroughs in fields like climate modeling, drug discovery, and astrophysics.

1. Frontier – The Most Powerful Supercomputer

This tops the list of the best supercomputers. Frontier, boasting a peak performance of 6.88 exaflops, stands as the preeminent supercomputer globally in terms of computational power. The facility is situated within the premises of the Oak Ridge National Laboratory, which is situated in the state of Tennessee, United States. Frontier harnesses the computational capabilities of AMD central processing units (CPUs) and graphics processing units (GPUs) to facilitate a diverse range of scientific investigations encompassing climate modeling, nuclear weapons design, and materials science.

2. Fugaku Supercomputer

With a peak performance of 442 petaflops, Fugaku is currently the second most powerful supercomputer in the world. The facility is located within the Japan-based RIKEN Centre for Computational Science in Kobe. Its Fujitsu central processing units (CPUs) and graphics processing units (GPUs) make the supercomputer Fugaku suitable for a wide range of scientific investigations, including drug discovery, protein folding, and climate modelling.

3. LUMI – (CSC – IT Center for Science, Finland)

LUMI, which has a peak performance of 151 petaflops, ranks as the third-most potent supercomputer in the world. The facility is situated in the CSC – IT Center for Science in Finland and serves as a hub for several scientific research endeavors, including climate modeling, astrophysics, and materials science, among others.

4. Leonardo

The Leonardo supercomputer is a high-performance computing system with a processing capacity of one petaflop, situated at the CINECA datacenter in Bologna, Italy. The system comprises an Atos BullSequana XH2000 computer, equipped with around 14,000 Nvidia Ampere GPUs and a high-speed connectivity of 200Gb/s over Nvidia Mellanox HDR InfiniBand. Leonardo, which was inaugurated in November 2022, possesses a computational capacity of 250 petaflops, equivalent to 250 quadrillion operations per second. Consequently, it ranks among the five most high-performing supercomputers globally. In November 2022, the subject in question made its debut on the TOP500 list, securing the fourth position globally and the second position within Europe.

The given name “Leonardo” has been bestowed upon the supercomputer as a tribute to the renowned Italian polymath, Leonardo da Vinci. The supercomputer in question possesses pre-exascale capabilities, indicating the capacity to execute a minimum of one exaflop, or one quintillion floating-point operations, per second. Exascale computing represents the forthcoming iteration of supercomputers, with the potential to significantly transform the methodologies employed in addressing intricate scientific and technical challenges.

5. Perlmutter

The Perlmutter supercomputer, which pays tribute to the esteemed Nobel laureate Saul Perlmutter, is a state-of-the-art computing machine specifically engineered to facilitate diverse scientific investigations and computational endeavors.

The National Energy study Scientific Computing Center (NERSC), which houses the Perlmutter supercomputer, is a prominent institution that offers computing resources for scientific study across many disciplines such as physics, materials science, climate modeling, and other related topics. The Perlmutter supercomputer plays a crucial role in the advancement of scientific knowledge by facilitating complicated simulations and computations at an accelerated pace.

6. Selene (USA)

Installed in-house at NVIDIA Corp., Selene moved from seventh to sixth in June. Selene just hit 63.4 petaflops on HPL, nearly tripling its previous score of 27.6 petaflops.

A month after building and running Selene, NVIDIA announced its AI supercomputer in June. It is used for system development, testing, and internal AI tasks.

7. Tianhe-2A

Tianhe-2A (called MilkyWay-2A) moved up to sixth place with 61.4 petaflops. China’s National University of Defense Technology has placed it in the National Supercomputer Center in Guangzhou.

Intel Xeon CPUs and NUDT Matrix-2000 DSP accelerators power Tianhe-2A It will be utilised for simulation, analysis, and security. From June 2013 through November 2015, it was #1.

8. Tianhe-2A (National Supercomputing Center in Guangzhou, China)

Tianhe-2A, alternatively referred to as Milky Way-2A, is a highly advanced computing system located in the National Supercomputing Center in Guangzhou, China. This computer gained significant attention due to its ranking as one of the most high-performing machines globally, resulting in widespread media coverage.

Tianhe-2A, which has been designed and constructed by the National University of Defense Technology (NUDT) in China, exhibits remarkable computational capabilities, achieving a peak performance of 61.4 petaflops, denoting a capacity to execute quadrillions of computations per second. The computing speed of the supercomputer is achieved through the utilization of a combination of Intel Xeon processors and Matrix-2000 accelerators.

The primary applications of Tianhe-2A encompass scientific research, data analysis, weather forecasting, and other computationally demanding tasks. This supercomputer, being an accomplished technological accomplishment, makes a substantial contribution to China’s research capacity and functions as a representation of their dedication to high-performance computing.

9. JUWELS Booster Module

The JUWELS Booster Module is an integral component of the renowned Jülich Supercomputing Centre in Germany, where the JUWELS supercomputer is located. This design is intended to enhance the computational capabilities of JUWELS and increase its overall performance. The addition of graphics processing units (GPUs) and high-performance networking technologies to the Booster Module increases the cluster’s computational capabilities.

The addition of GPUs to the JUWELS Booster Module enables enhanced computational capabilities for applications that can benefit from parallel processing, such as machine learning, big data analytics, and simulations. The combination of conventional central processing units (CPUs) and specialized graphics processing units (GPUs) results in a significant increase in computational efficiency and speed.

The JUWELS supercomputer, along with its Booster Module, plays a crucial role in facilitating scientific research in a wide range of disciplines, including physics, chemistry, climate modeling, and materials science. This technology’s enhanced computational capabilities enable researchers to utilize sophisticated tools in order to address complex challenges and facilitate innovative breakthroughs.

10. Adastra

Adastra, located at the Barcelona Supercomputing Center in Spain, is a supercomputer designed specifically for sophisticated scientific research and computing. Adastra provides substantial computational power to address complex problems in a variety of disciplines, utilizing its cutting-edge technology.

Adastra’s hybrid architecture, which combines traditional central processing units (CPUs) with potent graphics processing units (GPUs), is one of its most remarkable characteristics. This combination enables efficient parallel computation, making it ideal for applications including simulations of molecular dynamics, climate modeling, and artificial intelligence.


The ranking of the world’s top 10 supercomputers undergoes continuous evolution due to the emergence of novel technologies and the upgrading of existing systems. Anticipated advancements in supercomputing technology suggest that forthcoming iterations will exhibit heightened capabilities, boasting peak performances of exaflops or potentially even zettaflops. The utilisation of these supercomputers will be directed towards addressing some of the most formidable global issues, including climate change, cancer research, and nuclear fusion.

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