SQL 2005 - Max Worker threads enhancement

One of the great enhancement in SQL 2005 is its automatic worker threads adjustment. In SQL 2000 it is by default adjust to 255. Increment in this figure without proper testing will always result in degradation of SQL performance. A fresh installation of SQL 2005 initates it by 0 and adjust it according to system load and usage. One thing to remember that in case of upgrading, SQL 2005 will get the max work thread number from previous version which have to reinitialize to 0 for better performance.