Question: What is the performance impact of enabling Transparent Data Encryption (TDE) on SQL Server database query performance? How can I measure the performance impact ? Answer: There is a general outline about the pros and cons of different Encryption on Encrypting data in SQL Server . So once you\ or your organisation has made the decision to enable TDE for SQL Server databases . it's time to assess the impact : performance , volume and DBA management overhead. According to the Microsoft documentation "TDE has an estimated performance impact around 3-5% and can be much lower if most of... Read more →