You can get more details on it in Bill Hilf’s blog post - Windows Azure Benchmarks Show Top Performance for Big Compute
Today, we are pleased to announce the fourth release of our compute cluster solution since 2006. Microsoft HPC Pack 2012 is used to manage compute clusters with dedicated servers, part-time servers, desktop computers, and hybrid deployments with Windows Azure. Clusters can be entirely on-premises, can be extended to the cloud on a schedule or on demand, or be can be all in the cloud and active only when needed.
The new release provides support for Windows Server 2012. Features include Windows Azure VPN integration for access to on-premises resources, such as license servers, new job execution control for dependencies, new job scheduling policies for memory and cores, new monitoring tools, and utilities to help manage data staging.
Microsoft HPC Pack 2012 will be available in December 2012.