On August 7, 2007, Sun Microsystems announced the UltraSPARC T2 processor chip. Systems containing this new processor chip, which can have up to 8 processor cores per chip, require 50 Processor Value Units (PVUs) per core for software licensing. This PVU requirement is designed to enable software price/performance improvements over the systems this UltraSPARC T2 processor technology is likely to replace. Software licensing for certain IBM programs is based on the number of PVUs assigned to each processor core. All future license and Software Subscription and Support [may also be referred to as Software Maintenance] entitlements will be obtained in PVUs. This practice provides the licensing granularity you require, while offering the flexibility to configure your systems to best support your business objectives.
For a complete listing of processor families and their assigned PVUs, go to Processor Value Unit Licensing for Distributed SW.