 The cluster also contained 16 nodes with 32 cores and 1 TB ram each, 128 "standard" compute nodes with Nvidia Kepler K20 GPUs, and other nodes for I/O (to a Lustre filesystem), login, and cluster management.Stampede can complete 9.6 quadrillion floating point operations per second.A pre-production configuration of Stampede was listed as the 7th fastest supercomputer on the November 2012 Top500 list with a delivered performance of 2660 TFlops.