Microsoft announced the Azure GS-series of virtual machine (VM) and premium storage types designed to run the most demanding storage and compute-intensive workloads in the cloud.

Microsoft also announced a new diagnostic capability for VMs – the ability to see serial and console output from a running Virtual Machine. This will help customers diagnose VMs that may be suffering from boot or runtime failures.
In addition, Microsoft introduced Azure Service Bus Premium Messaging, a new Service Bus tier that provides all the messaging features of Azure Service Bus queues and topics with predictable, repeatable performance and improved availability. Unlike the multitenant model used by basic and standard Service Bus tiers, the premium tier uses a micro services model to provide resource isolation and consistent performance.
http://azure.microsoft.com/en-us/blog/azure-has-the-most-powerful-vms-in-the-public-cloud/