The new x86 processors offer direct compatability with exsisting installed base of 32-bit Windows server operating environments (SOEs), so there is no disruption to customers during hardware transition. As customers make next-generation Windows SOE deployment, they have significant flexibility because the majority of business applications in use today were compiled for deployment on a 32-bit platform.
Drivers accelerating the adoption of 64-bit systems include the ability to support larger memory footprints and deliver higher overall performance. The use of a 64-bit kernell will deliver higher performance to most applications through its ability to utilize significantly larger pages and nonpaged pools while exspanding internal cache.
There is little or no cost premium associated with 64-bit hardware or operating software when configured identically. If there is any cost penalty to deploy applications aboard a 64-bit sever it will be limited to a low-level system infrastructure software. This results in: IT cost reduction on infrastructure (fewer severs). IT reduction cost and user productivity is increased by having quicker response times such as logins, web access, queries and searches.
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