Low-cost Core i3. Laptops from the low-cost sector are mostly furnished with Braswell processors or AMD APUs nowadays. Neither belongs to the strongest of their kind. Lenovo takes a different approach and installs a Core i3 processor from the Broadwell generation in its Ideapad.
http://www.notebookcheck.net/Lenovo-IdeaPad-100-15IBD-Notebook-Review.158803.0.html