Cray XT5 – Scalable Computing at Work 

As the single most scalable Linux supercomputer, the Cray XT5™ system combines unprecedented sustained application performance with exceptional manageability and reliability, and lower cost of ownership for customers. 

Using powerful Quad-Core AMD Opteron™ processor cores, the Cray XT5 system supports both Cray XT4™ blades for optimized compute/interconnect balance and the new Cray XT5 blades optimized for memory-intensive and/or compute-biased workloads.

Oak Ridge National Laboratory's (ORNL) "Jaguar"
supercomputer, a Cray XT5 system, is the fastest in the world for open science.