SQL In-Memory technologies are now in Azure. These technologies greatly improve the performance of transactional and analytics workloads. With In-Memory OLTP you can achieve up to 30 times gain in transaction throughput. With In-Memory Analytics you can achieve up to 100 times improvement in query performance, depending on the workload.
To get started with In-Memory OLTP and In-Memory Analytics in Azure, see Get started with In-Memory (Preview).