http://www2.sqlblog.com/blogs/merrill_aldrich/archive/tags/hyperthreading/default.aspxTags: hyperthreadingenCommunityServer 2.1 SP2 (Build: 61129.1)http://www2.sqlblog.com/blogs/merrill_aldrich/archive/2010/01/14/poll-hyperthread-or-not-on-2-x-4-core-nehalem-sql-server.aspxThu, 14 Jan 2010 22:05:00 GMT21093a07-8b3d-42db-8cbf-3350fcbf5496:21056merrillaldrich2http://www2.sqlblog.com/blogs/merrill_aldrich/comments/21056.aspxhttp://www2.sqlblog.com/blogs/merrill_aldrich/commentrss.aspx?PostID=21056Common wisdom with previous generations of server hardware was that SQL Server might not benefit from hyperthreading or could be degraded at high CPU usage; does anyone have definitive data about Nehalem (non-EX) servers and SQL Server 2005 or 2008? Here...(<a href="http://www2.sqlblog.com/blogs/merrill_aldrich/archive/2010/01/14/poll-hyperthread-or-not-on-2-x-4-core-nehalem-sql-server.aspx">read more</a>)<img src="http://www2.sqlblog.com/aggbug.aspx?PostID=21056" width="1" height="1">hyperthreadingperformance