AMD talks details of "Bulldozer," the first completely new architecture since K8

Sandtiger’s eight cores consist of eight AMD Bulldozers. Bulldozer is the name AMD has given to one of the CPU cores for its M-SPACE architecture. AMD claims dramatic performance-per-watt improvements in HPC applications with Bulldozer cores. Unlike Barcelona and Shanghai, which have evolved from AMD’s K8 architecture, Bulldozer is a completely new design developed from the ground up.