SharePoint 2010 Standard Vs Enterprise Edition

Both the Standard version and Enterprise version of SharePoint 2010 are licensed versions. The Enterprise contains all the features in the Standard Edition in addition it has the following new features. 

Access Services
Business Data Web Parts
Business Intelligence Center
Calculated KPIs
Contextual Search
Visio Services etc

The following sites provide a chart with the complete feature comparison between the different Editions of SharePoint 2010

http://sharepoint.microsoft.com/en-us/buy/Pages/Editions-Comparison.aspx
http://www.fpweb.net/sharepoint-hosting/2010/compare-sharepoint-foundation-server/
http://www.khamis.net/blog/Lists/Posts/Post.aspx?ID=61

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