Businesses don't want a machine that can do everything reasonably well. But, they want a computer that excels at specific tasks. Businesses are being experimented with clusters of high-density and low-power servers known as microservers. These microservers are suited to the growing workloads found inside modern datacenters. The quantifiable nature of workloads allows microserver circuitry to be paired back to what's needed to execute these tasks. To know more on the microservers, go through the article by Nick Heath, chief reporter for TechRepublic UK.
http://www.zdnet.com/microservers-what-you-need-to-know-7000027388/