This IBM® RedpaperTM publication is a comprehensive guide covering the IBM Power 720 and Power 740 servers supporting AIX®, IBM i, and Linux® operating systems. The goal of this paper is to introduce the major innovative Power 720 and 740 offerings and their prominent functions, including these: The POWER7TM processor available at frequencies of 3.0 GHz, 3.55 GHz, and 3.7 GHz The specialized POWER7 Level 3 cache that provides greater bandwidth, capacity, and reliability The 1 Gb or 10 Gb Integrated Virtual Ethernet adapter, included with each server configuration, and providing native hardware virtualization The latest PowerVMTM virtualization including PowerVM Live Partition Mobility and PowerVM Active MemoryTM Sharing. Active Memory Expansion that provides more usable memory than what is physically installed on the system EnergyScaleTM technology that provides features such as power trending, power-saving, capping of power, and thermal measurement. Professionals who want to acquire a better understanding of IBM Power Systems products can benefit from reading this paper. This paper expands the current set of IBM Power Systems documentation by providing a desktop reference that offers a detailed technical description of the Power 720 and Power 740 systems. This paper does not replace the latest marketing materials and configuration tools. It is intended as an additional source of information that, together with existing sources, can be used to enhance your knowledge of IBM server solutions.