From a white paper by GE Intelligent Platforms (Link):

This white paper describes how GPGPU technology can allow system designers to fit an unprecedented amount of processing power into a very compact package. For example, it describes four GE Intelligent Platforms 3U VPX boards with a floating point performance of 766 GFLOPS in less than 0.4 cubic feet. With configuration control and lifecycle management from a leading COTS supplier, these technologies are clearly ready for duty.