The power requirements of a virtual desktop infrastructure (VDI) allows for immediate and significant savings in the drive to reduce power consumption. In fact, PCs – which draw 55 watts – can no longer compete with a VDI drawing just 3 watts and resulting in overall savings of 20:1. 

This is according to a statement from StorTech, a Sun Microsystems business partner.
In addition, companies are beginning to realise that a VDI is a cost-effective and secure way to provide employees with a centrally-hosted desktop environment that is easy to manage, maintain or refresh.
There are other benefits associated with a VDI, says StorTech. Traditionally, PCs are replaced after three to five years; thin client devices have longer lifecycles of up to 10 years.
The VDI also solves problems like data security by removing data from the device into the data centre, high costs of maintenance and support, as well as the common nightmare of data loss that goes along with laptops and PCs. In some cases this has resulted in a cost savings of up to 30% across the IT environment.
Consisting of a stateless device (where there are no moving parts or an operating system and nothing to manage on the device) and software that communicates to a central server, the VDI facilitates remote access and allows data to be centrally stored and hosted.
The applications, data and operating system reside on the server in the data centre, instead of on the traditional desktop device. Employees access their personal PC interface from any desktop by inserting a smart card. This means that they can hot-desk freely, while their data is secured centrally.
Sun Microsystems commissioned Forrester Research almost two years ago to examine the total economic impact of deploying Sun’s Sun Ray virtual display technology in a sample organisation which had primarily a PC environment.
The research found that by making the switch to a VDI solution savings were made in traditional hardware cycle, hardware replacement costs, improved security and improved operational efficiency. The findings indicated that the risk-adjusted three year ROI for the sample organisation was 111% with a payback after 1,1 years.