define interconnect
The Intel QuickPath Interconnect (QPI) is a point-to-point processor interconnect developed by Intel which replaced the front-side bus in Xeon, Itanium, and certain desktop platforms starting in 2008. It increased the scalability and bandwidth available. Prior to the name's announcement, Intel referred to it as Common System Interface. Earlier incarnations were known as Yet Another Protocol and YAP+. QPI 1.1 is a significantly revamped version introduced with Sandy Bridge-EP. QPI will be replace