There are a number of requirements you need to satisfy in order to utilize In-Memory Optimized tables. These are as follows:
In-Memory Optimized tables require the Enterprise edition SQL Server 2014 (the Developer and Evaluation editions also have all the features of the Enterprise edition but cannot be used in production environments)
The SQL Server will need enough memory (RAM) to hold the data stored in the In-Memory Optimized tables
If you are using disk-based tables, then you will also need enough RAM for the buffer pool
You will need a processor that supports the CMPXCHG16B instruction set—all modern 64-bit processors support the CMPXCHG16B instruction set