I have been shoping for a laptop for shcool and Ive come across a few lisings of laptops with a i7-8505U CPU, I am familiar with the i7-8550U but I cant find any information on a 8505. Are they all typos or is this a different varient of the i7? here is one such listing:https://www.laptopstore.lk/laptops/lenovo/lenovo-ideapad-330s-core-i7-8th-gen-ultrabook.html