In computing, IA-64 (short for Intel Architecture-64) is a 64-bit processor architecture developed cooperatively by Intel Corporation and Hewlett-Packard (HP), and implemented in the Itanium and Itanium 2 processors. The goal of IA-64 was to produce a "post-RISC era" architecture that would address some of the key challenges faced by older architectures, to enable more efficient performance scaling in future processor designs.