Quoting from the IDC official announcement:
It is clear that x86-based server deployment patterns are changing dramatically in the market today. The rapid emergence of multicore architectures and virtualization technologies is significantly restricting worldwide x86 server shipments. According to IDC’s updated forecast, multicore and virtualization will cost the x86 market more than 4.5 million shipments and $2.4 billion in customer spending between 2006-2010. Overall, x86 shipments that were once projected to increase 61% by 2010 are now facing just 39% growth during that same period.
Other highlights from this study include:
- Server revenue growth rates will be lower in comparison, but are reduced to a lesser extent than shipment growth rates as customers deploy more richly configured systems in terms of memory, disk, and I/O to balance the increase in processing and server utilization
- Despite the decline in the number of physical shipments, over the forecast period, growth in the number of effective processors continues to climb at a 25% annual rate due to multi-core technology advances
- The number of virtual servers rises dramatically at a CAGR of 40.6% during 2005-2010 so that by the end of the forecast period, more than 1.7 million physical servers will be shipped for virtualization activities resulting in 7.9 million logical servers. This represents 14.6% of all physical servers in 2010 compared to just 4.5% of server shipments in 2005