3rd Generation Intel® Core™ i5
Choose our most popular family member and prepare to be thrilled by an automatic burst of speed whenever you need it for performance that adapts to you, thanks to Intel® Turbo Boost Technology 2.0. Plus, you’ll enjoy a rich visual experience with brilliant imagery, 3D visual support, and other enhancements from our built-in visuals.
All part of the amazing experience you get with the 3rd generation Intel® Core™ i5 processor.
from http://www.intel.com/content/www/us/en/processors/core/core-i5-processor.html