https://ark.intel.com/products/37109/Intel-Xeon-Processor-X5560-8M-Cache-2-80-GHz-6-40-GT-s-Intel-QPI-
Your processor
https://ark.intel.com/products/65523/Intel-Core-i7-3770K-Processor-8M-Cache-up-to-3-90-GHz-
You can see near bottom where is says instruction extensions for one that does
I believe Sandy bridge to be first to support it. But my memory could be wrong I know the 2600k does