G722 - 64 bit performance

Hi,<?xml:namespace prefix = o />

I am using IPP G722 functions in my application, The application is developed on Linux 64 bit platform. 

We are currently running IPP 8.2 Update 1, for Linux.

We have observed lower performance when running the  64 bit G722 coder functions, than 32 bit G722 coder functions version of the IPP libraries.

 Is this expected? 

Thanks