1st Generation vs. 2nd Generation Intel Core Processors. Difference Between 1st Generation and 2nd Generation Intel Core Processors. In 2010, the 1 st generation of processors was introduced.he Core i5 has both dual and quad processors and Core i5 comes with at least two of its processors the supports the Intel Turbo Boost, graphic designs and Hyper-Threading. The Core i7 are the most powerful processors. It has four processors that support Hyper Threading, and Turbo boost.