Increasing value to the customer is an ongoing theme for the IBM Lotus Domino server. The growing volume of information in today's enterprise strains existing hardware infrastructures. Lotus Domino 8.5 contains features that help relieve the stress on the expensive processor and storage subsystems. This article shows the reductions in processor and disk utilization with Lotus Domino 8.5 and Lotus Notes clients...

Source: http://www.ibm.com/developerworks/lotus/library/domino85-performance/index.html