IBM's supercomputers are more energy efficient than platforms offered by its rivals.
According to research from the Green500.org, which measures supercomputer performance, the top 20 most energy-efficient supercomputers in the world are built on IBM computing technology.
Big Blue, in fact, holds 39 of the top 50 positions on the list. IBM competes in the supercomputing market against the likes of Cray, SGI and Hewlett-Packard.
The annual report found that the most energy-efficient supercomputer in the world is the IBM machine located at the Interdisciplinary Centre for Mathematical and Computational Modelling at the University of Warsaw.
This system produces more than 536Mflops (millions of floating point operations per second) per watt of energy.
The first non-IBM entry on the list is from SGI, which offers 240 Mflops per watt. The most energy efficient system from HP offers 217 Mflops per watt.
The report was sponsored by server components supplier Supermicro.